// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
//
// This file has been automatically generated. Please do not edit it manually.
// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
//
// SharedObjects=ffi_test_functions
// VMOptions=
// VMOptions=--deterministic --optimization-counter-threshold=5
// VMOptions=--use-slow-path
// VMOptions=--use-slow-path --stacktrace-every=100

// @dart = 2.9

import 'dart:ffi';

import "package:expect/expect.dart";
import "package:ffi/ffi.dart";

import 'dylib_utils.dart';

// Reuse the compound classes.
import 'function_structs_by_value_generated_compounds.dart';

final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
void main() {
  for (int i = 0; i < 10; ++i) {
    testPassStruct1ByteIntx10Leaf();
    testPassStruct3BytesHomogeneousUint8x10Leaf();
    testPassStruct3BytesInt2ByteAlignedx10Leaf();
    testPassStruct4BytesHomogeneousInt16x10Leaf();
    testPassStruct7BytesHomogeneousUint8x10Leaf();
    testPassStruct7BytesInt4ByteAlignedx10Leaf();
    testPassStruct8BytesIntx10Leaf();
    testPassStruct8BytesHomogeneousFloatx10Leaf();
    testPassStruct8BytesMixedx10Leaf();
    testPassStruct9BytesHomogeneousUint8x10Leaf();
    testPassStruct9BytesInt4Or8ByteAlignedx10Leaf();
    testPassStruct12BytesHomogeneousFloatx6Leaf();
    testPassStruct16BytesHomogeneousFloatx5Leaf();
    testPassStruct16BytesMixedx10Leaf();
    testPassStruct16BytesMixed2x10Leaf();
    testPassStruct17BytesIntx10Leaf();
    testPassStruct19BytesHomogeneousUint8x10Leaf();
    testPassStruct20BytesHomogeneousInt32x10Leaf();
    testPassStruct20BytesHomogeneousFloatLeaf();
    testPassStruct32BytesHomogeneousDoublex5Leaf();
    testPassStruct40BytesHomogeneousDoubleLeaf();
    testPassStruct1024BytesHomogeneousUint64Leaf();
    testPassFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf();
    testPassFloatStruct32BytesHomogeneousDoubleFloatStructLeaf();
    testPassInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf();
    testPassDoublex6Struct16BytesMixedx4Int32Leaf();
    testPassInt32x4Struct16BytesMixedx4DoubleLeaf();
    testPassStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf();
    testPassInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf();
    testPassStructAlignmentInt16Leaf();
    testPassStructAlignmentInt32Leaf();
    testPassStructAlignmentInt64Leaf();
    testPassStruct8BytesNestedIntx10Leaf();
    testPassStruct8BytesNestedFloatx10Leaf();
    testPassStruct8BytesNestedFloat2x10Leaf();
    testPassStruct8BytesNestedMixedx10Leaf();
    testPassStruct16BytesNestedIntx2Leaf();
    testPassStruct32BytesNestedIntx2Leaf();
    testPassStructNestedIntStructAlignmentInt16Leaf();
    testPassStructNestedIntStructAlignmentInt32Leaf();
    testPassStructNestedIntStructAlignmentInt64Leaf();
    testPassStructNestedIrregularEvenBiggerx4Leaf();
    testPassStruct8BytesInlineArrayIntx4Leaf();
    testPassStructInlineArrayIrregularx4Leaf();
    testPassStructInlineArray100BytesLeaf();
    testPassStructStruct16BytesHomogeneousFloat2x5Leaf();
    testPassStructStruct32BytesHomogeneousDouble2x5Leaf();
    testPassStructStruct16BytesMixed3x10Leaf();
    testPassUint8Struct32BytesInlineArrayMultiDimensionalILeaf();
    testPassUint8Struct4BytesInlineArrayMultiDimensionalInLeaf();
    testPassStruct3BytesPackedIntx10Leaf();
    testPassStruct8BytesPackedIntx10Leaf();
    testPassStruct9BytesPackedMixedx10DoubleInt32x2Leaf();
    testPassStruct5BytesPackedMixedLeaf();
    testPassStructNestedAlignmentStruct5BytesPackedMixedLeaf();
    testPassStruct6BytesInlineArrayIntLeaf();
    testPassStruct15BytesInlineArrayMixedLeaf();
    testPassUnion4BytesMixedx10Leaf();
    testPassUnion8BytesNestedFloatx10Leaf();
    testPassUnion9BytesNestedIntx10Leaf();
    testPassUnion16BytesNestedInlineArrayFloatx10Leaf();
    testPassUnion16BytesNestedFloatx10Leaf();
    testPassUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf();
    testPassUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf();
    testPassUint8Struct1ByteBoolLeaf();
    testPassWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf();
    testReturnStruct1ByteIntLeaf();
    testReturnStruct3BytesHomogeneousUint8Leaf();
    testReturnStruct3BytesInt2ByteAlignedLeaf();
    testReturnStruct4BytesHomogeneousInt16Leaf();
    testReturnStruct7BytesHomogeneousUint8Leaf();
    testReturnStruct7BytesInt4ByteAlignedLeaf();
    testReturnStruct8BytesIntLeaf();
    testReturnStruct8BytesHomogeneousFloatLeaf();
    testReturnStruct8BytesMixedLeaf();
    testReturnStruct9BytesHomogeneousUint8Leaf();
    testReturnStruct9BytesInt4Or8ByteAlignedLeaf();
    testReturnStruct12BytesHomogeneousFloatLeaf();
    testReturnStruct16BytesHomogeneousFloatLeaf();
    testReturnStruct16BytesMixedLeaf();
    testReturnStruct16BytesMixed2Leaf();
    testReturnStruct17BytesIntLeaf();
    testReturnStruct19BytesHomogeneousUint8Leaf();
    testReturnStruct20BytesHomogeneousInt32Leaf();
    testReturnStruct20BytesHomogeneousFloatLeaf();
    testReturnStruct32BytesHomogeneousDoubleLeaf();
    testReturnStruct40BytesHomogeneousDoubleLeaf();
    testReturnStruct1024BytesHomogeneousUint64Leaf();
    testReturnStruct3BytesPackedIntLeaf();
    testReturnStruct8BytesPackedIntLeaf();
    testReturnStruct9BytesPackedMixedLeaf();
    testReturnUnion4BytesMixedLeaf();
    testReturnUnion8BytesNestedFloatLeaf();
    testReturnUnion9BytesNestedIntLeaf();
    testReturnUnion16BytesNestedFloatLeaf();
    testReturnStructArgumentStruct1ByteIntLeaf();
    testReturnStructArgumentInt32x8Struct1ByteIntLeaf();
    testReturnStructArgumentStruct8BytesHomogeneousFloatLeaf();
    testReturnStructArgumentStruct20BytesHomogeneousInt32Leaf();
    testReturnStructArgumentInt32x8Struct20BytesHomogeneouLeaf();
    testReturnStructArgumentStruct8BytesInlineArrayIntLeaf();
    testReturnStructArgumentStructStruct16BytesHomogeneousLeaf();
    testReturnStructArgumentStructStruct32BytesHomogeneousLeaf();
    testReturnStructArgumentStructStruct16BytesMixed3Leaf();
    testReturnStructAlignmentInt16Leaf();
    testReturnStructAlignmentInt32Leaf();
    testReturnStructAlignmentInt64Leaf();
    testReturnStruct8BytesNestedIntLeaf();
    testReturnStruct8BytesNestedFloatLeaf();
    testReturnStruct8BytesNestedFloat2Leaf();
    testReturnStruct8BytesNestedMixedLeaf();
    testReturnStruct16BytesNestedIntLeaf();
    testReturnStruct32BytesNestedIntLeaf();
    testReturnStructNestedIntStructAlignmentInt16Leaf();
    testReturnStructNestedIntStructAlignmentInt32Leaf();
    testReturnStructNestedIntStructAlignmentInt64Leaf();
    testReturnStructNestedIrregularEvenBiggerLeaf();
  }
}

final passStruct1ByteIntx10Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt),
    int Function(
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt,
        Struct1ByteInt)>("PassStruct1ByteIntx10", isLeaf: true);

/// Smallest struct with data.
/// 10 struct arguments will exhaust available registers.
void testPassStruct1ByteIntx10Leaf() {
  final a0Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a9 = a9Pointer.ref;

  a0.a0 = -1;
  a1.a0 = 2;
  a2.a0 = -3;
  a3.a0 = 4;
  a4.a0 = -5;
  a5.a0 = 6;
  a6.a0 = -7;
  a7.a0 = 8;
  a8.a0 = -9;
  a9.a0 = 10;

  final result =
      passStruct1ByteIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(5, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct3BytesHomogeneousUint8x10Leaf = ffiTestFunctions.lookupFunction<
        Int64 Function(
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8),
        int Function(
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8,
            Struct3BytesHomogeneousUint8)>(
    "PassStruct3BytesHomogeneousUint8x10",
    isLeaf: true);

/// Not a multiple of word size, not a power of two.
/// 10 struct arguments will exhaust available registers.
void testPassStruct3BytesHomogeneousUint8x10Leaf() {
  final a0Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct3BytesHomogeneousUint8>();
  final Struct3BytesHomogeneousUint8 a9 = a9Pointer.ref;

  a0.a0 = 1;
  a0.a1 = 2;
  a0.a2 = 3;
  a1.a0 = 4;
  a1.a1 = 5;
  a1.a2 = 6;
  a2.a0 = 7;
  a2.a1 = 8;
  a2.a2 = 9;
  a3.a0 = 10;
  a3.a1 = 11;
  a3.a2 = 12;
  a4.a0 = 13;
  a4.a1 = 14;
  a4.a2 = 15;
  a5.a0 = 16;
  a5.a1 = 17;
  a5.a2 = 18;
  a6.a0 = 19;
  a6.a1 = 20;
  a6.a2 = 21;
  a7.a0 = 22;
  a7.a1 = 23;
  a7.a2 = 24;
  a8.a0 = 25;
  a8.a1 = 26;
  a8.a2 = 27;
  a9.a0 = 28;
  a9.a1 = 29;
  a9.a2 = 30;

  final result = passStruct3BytesHomogeneousUint8x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(465, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct3BytesInt2ByteAlignedx10Leaf = ffiTestFunctions.lookupFunction<
        Int64 Function(
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned),
        int Function(
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned,
            Struct3BytesInt2ByteAligned)>("PassStruct3BytesInt2ByteAlignedx10",
    isLeaf: true);

/// Not a multiple of word size, not a power of two.
/// With alignment rules taken into account size is 4 bytes.
/// 10 struct arguments will exhaust available registers.
void testPassStruct3BytesInt2ByteAlignedx10Leaf() {
  final a0Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct3BytesInt2ByteAligned>();
  final Struct3BytesInt2ByteAligned a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a1.a0 = -3;
  a1.a1 = 4;
  a2.a0 = -5;
  a2.a1 = 6;
  a3.a0 = -7;
  a3.a1 = 8;
  a4.a0 = -9;
  a4.a1 = 10;
  a5.a0 = -11;
  a5.a1 = 12;
  a6.a0 = -13;
  a6.a1 = 14;
  a7.a0 = -15;
  a7.a1 = 16;
  a8.a0 = -17;
  a8.a1 = 18;
  a9.a0 = -19;
  a9.a1 = 20;

  final result = passStruct3BytesInt2ByteAlignedx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(10, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct4BytesHomogeneousInt16x10Leaf = ffiTestFunctions.lookupFunction<
        Int64 Function(
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16),
        int Function(
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16,
            Struct4BytesHomogeneousInt16)>(
    "PassStruct4BytesHomogeneousInt16x10",
    isLeaf: true);

/// Exactly word size on 32-bit architectures.
/// 10 struct arguments will exhaust available registers.
void testPassStruct4BytesHomogeneousInt16x10Leaf() {
  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a1.a0 = -3;
  a1.a1 = 4;
  a2.a0 = -5;
  a2.a1 = 6;
  a3.a0 = -7;
  a3.a1 = 8;
  a4.a0 = -9;
  a4.a1 = 10;
  a5.a0 = -11;
  a5.a1 = 12;
  a6.a0 = -13;
  a6.a1 = 14;
  a7.a0 = -15;
  a7.a1 = 16;
  a8.a0 = -17;
  a8.a1 = 18;
  a9.a0 = -19;
  a9.a1 = 20;

  final result = passStruct4BytesHomogeneousInt16x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(10, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct7BytesHomogeneousUint8x10Leaf = ffiTestFunctions.lookupFunction<
        Int64 Function(
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8),
        int Function(
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8,
            Struct7BytesHomogeneousUint8)>(
    "PassStruct7BytesHomogeneousUint8x10",
    isLeaf: true);

/// Sub word size on 64 bit architectures.
/// 10 struct arguments will exhaust available registers.
void testPassStruct7BytesHomogeneousUint8x10Leaf() {
  final a0Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct7BytesHomogeneousUint8>();
  final Struct7BytesHomogeneousUint8 a9 = a9Pointer.ref;

  a0.a0 = 1;
  a0.a1 = 2;
  a0.a2 = 3;
  a0.a3 = 4;
  a0.a4 = 5;
  a0.a5 = 6;
  a0.a6 = 7;
  a1.a0 = 8;
  a1.a1 = 9;
  a1.a2 = 10;
  a1.a3 = 11;
  a1.a4 = 12;
  a1.a5 = 13;
  a1.a6 = 14;
  a2.a0 = 15;
  a2.a1 = 16;
  a2.a2 = 17;
  a2.a3 = 18;
  a2.a4 = 19;
  a2.a5 = 20;
  a2.a6 = 21;
  a3.a0 = 22;
  a3.a1 = 23;
  a3.a2 = 24;
  a3.a3 = 25;
  a3.a4 = 26;
  a3.a5 = 27;
  a3.a6 = 28;
  a4.a0 = 29;
  a4.a1 = 30;
  a4.a2 = 31;
  a4.a3 = 32;
  a4.a4 = 33;
  a4.a5 = 34;
  a4.a6 = 35;
  a5.a0 = 36;
  a5.a1 = 37;
  a5.a2 = 38;
  a5.a3 = 39;
  a5.a4 = 40;
  a5.a5 = 41;
  a5.a6 = 42;
  a6.a0 = 43;
  a6.a1 = 44;
  a6.a2 = 45;
  a6.a3 = 46;
  a6.a4 = 47;
  a6.a5 = 48;
  a6.a6 = 49;
  a7.a0 = 50;
  a7.a1 = 51;
  a7.a2 = 52;
  a7.a3 = 53;
  a7.a4 = 54;
  a7.a5 = 55;
  a7.a6 = 56;
  a8.a0 = 57;
  a8.a1 = 58;
  a8.a2 = 59;
  a8.a3 = 60;
  a8.a4 = 61;
  a8.a5 = 62;
  a8.a6 = 63;
  a9.a0 = 64;
  a9.a1 = 65;
  a9.a2 = 66;
  a9.a3 = 67;
  a9.a4 = 68;
  a9.a5 = 69;
  a9.a6 = 70;

  final result = passStruct7BytesHomogeneousUint8x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(2485, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct7BytesInt4ByteAlignedx10Leaf = ffiTestFunctions.lookupFunction<
        Int64 Function(
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned),
        int Function(
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned,
            Struct7BytesInt4ByteAligned)>("PassStruct7BytesInt4ByteAlignedx10",
    isLeaf: true);

/// Sub word size on 64 bit architectures.
/// With alignment rules taken into account size is 8 bytes.
/// 10 struct arguments will exhaust available registers.
void testPassStruct7BytesInt4ByteAlignedx10Leaf() {
  final a0Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct7BytesInt4ByteAligned>();
  final Struct7BytesInt4ByteAligned a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4;
  a1.a1 = -5;
  a1.a2 = 6;
  a2.a0 = -7;
  a2.a1 = 8;
  a2.a2 = -9;
  a3.a0 = 10;
  a3.a1 = -11;
  a3.a2 = 12;
  a4.a0 = -13;
  a4.a1 = 14;
  a4.a2 = -15;
  a5.a0 = 16;
  a5.a1 = -17;
  a5.a2 = 18;
  a6.a0 = -19;
  a6.a1 = 20;
  a6.a2 = -21;
  a7.a0 = 22;
  a7.a1 = -23;
  a7.a2 = 24;
  a8.a0 = -25;
  a8.a1 = 26;
  a8.a2 = -27;
  a9.a0 = 28;
  a9.a1 = -29;
  a9.a2 = 30;

  final result = passStruct7BytesInt4ByteAlignedx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(15, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesIntx10Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt),
    int Function(
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt,
        Struct8BytesInt)>("PassStruct8BytesIntx10", isLeaf: true);

/// Exactly word size struct on 64bit architectures.
/// 10 struct arguments will exhaust available registers.
void testPassStruct8BytesIntx10Leaf() {
  final a0Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4;
  a1.a1 = -5;
  a1.a2 = 6;
  a2.a0 = -7;
  a2.a1 = 8;
  a2.a2 = -9;
  a3.a0 = 10;
  a3.a1 = -11;
  a3.a2 = 12;
  a4.a0 = -13;
  a4.a1 = 14;
  a4.a2 = -15;
  a5.a0 = 16;
  a5.a1 = -17;
  a5.a2 = 18;
  a6.a0 = -19;
  a6.a1 = 20;
  a6.a2 = -21;
  a7.a0 = 22;
  a7.a1 = -23;
  a7.a2 = 24;
  a8.a0 = -25;
  a8.a1 = 26;
  a8.a2 = -27;
  a9.a0 = 28;
  a9.a1 = -29;
  a9.a2 = 30;

  final result =
      passStruct8BytesIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(15, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesHomogeneousFloatx10Leaf = ffiTestFunctions.lookupFunction<
        Float Function(
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat),
        double Function(
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat,
            Struct8BytesHomogeneousFloat)>(
    "PassStruct8BytesHomogeneousFloatx10",
    isLeaf: true);

/// Arguments passed in FP registers as long as they fit.
/// 10 struct arguments will exhaust available registers.
void testPassStruct8BytesHomogeneousFloatx10Leaf() {
  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a9 = a9Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a1.a0 = -3.0;
  a1.a1 = 4.0;
  a2.a0 = -5.0;
  a2.a1 = 6.0;
  a3.a0 = -7.0;
  a3.a1 = 8.0;
  a4.a0 = -9.0;
  a4.a1 = 10.0;
  a5.a0 = -11.0;
  a5.a1 = 12.0;
  a6.a0 = -13.0;
  a6.a1 = 14.0;
  a7.a0 = -15.0;
  a7.a1 = 16.0;
  a8.a0 = -17.0;
  a8.a1 = 18.0;
  a9.a0 = -19.0;
  a9.a1 = 20.0;

  final result = passStruct8BytesHomogeneousFloatx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesMixedx10Leaf = ffiTestFunctions.lookupFunction<
    Float Function(
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed),
    double Function(
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed,
        Struct8BytesMixed)>("PassStruct8BytesMixedx10", isLeaf: true);

/// On x64, arguments go in int registers because it is not only float.
/// 10 struct arguments will exhaust available registers.
void testPassStruct8BytesMixedx10Leaf() {
  final a0Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a9 = a9Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4.0;
  a1.a1 = -5;
  a1.a2 = 6;
  a2.a0 = -7.0;
  a2.a1 = 8;
  a2.a2 = -9;
  a3.a0 = 10.0;
  a3.a1 = -11;
  a3.a2 = 12;
  a4.a0 = -13.0;
  a4.a1 = 14;
  a4.a2 = -15;
  a5.a0 = 16.0;
  a5.a1 = -17;
  a5.a2 = 18;
  a6.a0 = -19.0;
  a6.a1 = 20;
  a6.a2 = -21;
  a7.a0 = 22.0;
  a7.a1 = -23;
  a7.a2 = 24;
  a8.a0 = -25.0;
  a8.a1 = 26;
  a8.a2 = -27;
  a9.a0 = 28.0;
  a9.a1 = -29;
  a9.a2 = 30;

  final result =
      passStruct8BytesMixedx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(15.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct9BytesHomogeneousUint8x10Leaf = ffiTestFunctions.lookupFunction<
        Int64 Function(
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8),
        int Function(
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8,
            Struct9BytesHomogeneousUint8)>(
    "PassStruct9BytesHomogeneousUint8x10",
    isLeaf: true);

/// Argument is a single byte over a multiple of word size.
/// 10 struct arguments will exhaust available registers.
/// Struct only has 1-byte aligned fields to test struct alignment itself.
/// Tests upper bytes in the integer registers that are partly filled.
/// Tests stack alignment of non word size stack arguments.
void testPassStruct9BytesHomogeneousUint8x10Leaf() {
  final a0Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct9BytesHomogeneousUint8>();
  final Struct9BytesHomogeneousUint8 a9 = a9Pointer.ref;

  a0.a0 = 1;
  a0.a1 = 2;
  a0.a2 = 3;
  a0.a3 = 4;
  a0.a4 = 5;
  a0.a5 = 6;
  a0.a6 = 7;
  a0.a7 = 8;
  a0.a8 = 9;
  a1.a0 = 10;
  a1.a1 = 11;
  a1.a2 = 12;
  a1.a3 = 13;
  a1.a4 = 14;
  a1.a5 = 15;
  a1.a6 = 16;
  a1.a7 = 17;
  a1.a8 = 18;
  a2.a0 = 19;
  a2.a1 = 20;
  a2.a2 = 21;
  a2.a3 = 22;
  a2.a4 = 23;
  a2.a5 = 24;
  a2.a6 = 25;
  a2.a7 = 26;
  a2.a8 = 27;
  a3.a0 = 28;
  a3.a1 = 29;
  a3.a2 = 30;
  a3.a3 = 31;
  a3.a4 = 32;
  a3.a5 = 33;
  a3.a6 = 34;
  a3.a7 = 35;
  a3.a8 = 36;
  a4.a0 = 37;
  a4.a1 = 38;
  a4.a2 = 39;
  a4.a3 = 40;
  a4.a4 = 41;
  a4.a5 = 42;
  a4.a6 = 43;
  a4.a7 = 44;
  a4.a8 = 45;
  a5.a0 = 46;
  a5.a1 = 47;
  a5.a2 = 48;
  a5.a3 = 49;
  a5.a4 = 50;
  a5.a5 = 51;
  a5.a6 = 52;
  a5.a7 = 53;
  a5.a8 = 54;
  a6.a0 = 55;
  a6.a1 = 56;
  a6.a2 = 57;
  a6.a3 = 58;
  a6.a4 = 59;
  a6.a5 = 60;
  a6.a6 = 61;
  a6.a7 = 62;
  a6.a8 = 63;
  a7.a0 = 64;
  a7.a1 = 65;
  a7.a2 = 66;
  a7.a3 = 67;
  a7.a4 = 68;
  a7.a5 = 69;
  a7.a6 = 70;
  a7.a7 = 71;
  a7.a8 = 72;
  a8.a0 = 73;
  a8.a1 = 74;
  a8.a2 = 75;
  a8.a3 = 76;
  a8.a4 = 77;
  a8.a5 = 78;
  a8.a6 = 79;
  a8.a7 = 80;
  a8.a8 = 81;
  a9.a0 = 82;
  a9.a1 = 83;
  a9.a2 = 84;
  a9.a3 = 85;
  a9.a4 = 86;
  a9.a5 = 87;
  a9.a6 = 88;
  a9.a7 = 89;
  a9.a8 = 90;

  final result = passStruct9BytesHomogeneousUint8x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(4095, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct9BytesInt4Or8ByteAlignedx10Leaf =
    ffiTestFunctions.lookupFunction<
            Int64 Function(
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned),
            int Function(
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned,
                Struct9BytesInt4Or8ByteAligned)>(
        "PassStruct9BytesInt4Or8ByteAlignedx10",
        isLeaf: true);

/// Argument is a single byte over a multiple of word size.
/// With alignment rules taken into account size is 12 or 16 bytes.
/// 10 struct arguments will exhaust available registers.
///
void testPassStruct9BytesInt4Or8ByteAlignedx10Leaf() {
  final a0Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
  final Struct9BytesInt4Or8ByteAligned a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a1.a0 = -3;
  a1.a1 = 4;
  a2.a0 = -5;
  a2.a1 = 6;
  a3.a0 = -7;
  a3.a1 = 8;
  a4.a0 = -9;
  a4.a1 = 10;
  a5.a0 = -11;
  a5.a1 = 12;
  a6.a0 = -13;
  a6.a1 = 14;
  a7.a0 = -15;
  a7.a1 = 16;
  a8.a0 = -17;
  a8.a1 = 18;
  a9.a0 = -19;
  a9.a1 = 20;

  final result = passStruct9BytesInt4Or8ByteAlignedx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(10, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct12BytesHomogeneousFloatx6Leaf = ffiTestFunctions.lookupFunction<
        Float Function(
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat),
        double Function(
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat,
            Struct12BytesHomogeneousFloat)>(
    "PassStruct12BytesHomogeneousFloatx6",
    isLeaf: true);

/// Arguments in FPU registers on arm hardfp and arm64.
/// Struct arguments will exhaust available registers, and leave some empty.
/// The last argument is to test whether arguments are backfilled.
void testPassStruct12BytesHomogeneousFloatx6Leaf() {
  final a0Pointer = calloc<Struct12BytesHomogeneousFloat>();
  final Struct12BytesHomogeneousFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct12BytesHomogeneousFloat>();
  final Struct12BytesHomogeneousFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct12BytesHomogeneousFloat>();
  final Struct12BytesHomogeneousFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct12BytesHomogeneousFloat>();
  final Struct12BytesHomogeneousFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct12BytesHomogeneousFloat>();
  final Struct12BytesHomogeneousFloat a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct12BytesHomogeneousFloat>();
  final Struct12BytesHomogeneousFloat a5 = a5Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a1.a0 = 4.0;
  a1.a1 = -5.0;
  a1.a2 = 6.0;
  a2.a0 = -7.0;
  a2.a1 = 8.0;
  a2.a2 = -9.0;
  a3.a0 = 10.0;
  a3.a1 = -11.0;
  a3.a2 = 12.0;
  a4.a0 = -13.0;
  a4.a1 = 14.0;
  a4.a2 = -15.0;
  a5.a0 = 16.0;
  a5.a1 = -17.0;
  a5.a2 = 18.0;

  final result =
      passStruct12BytesHomogeneousFloatx6Leaf(a0, a1, a2, a3, a4, a5);

  print("result = $result");

  Expect.approxEquals(9.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
}

final passStruct16BytesHomogeneousFloatx5Leaf = ffiTestFunctions.lookupFunction<
        Float Function(
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat),
        double Function(
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat,
            Struct16BytesHomogeneousFloat)>(
    "PassStruct16BytesHomogeneousFloatx5",
    isLeaf: true);

/// On Linux x64 argument is transferred on stack because it is over 16 bytes.
/// Arguments in FPU registers on arm hardfp and arm64.
/// 5 struct arguments will exhaust available registers.
void testPassStruct16BytesHomogeneousFloatx5Leaf() {
  final a0Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a4 = a4Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a0.a3 = 4.0;
  a1.a0 = -5.0;
  a1.a1 = 6.0;
  a1.a2 = -7.0;
  a1.a3 = 8.0;
  a2.a0 = -9.0;
  a2.a1 = 10.0;
  a2.a2 = -11.0;
  a2.a3 = 12.0;
  a3.a0 = -13.0;
  a3.a1 = 14.0;
  a3.a2 = -15.0;
  a3.a3 = 16.0;
  a4.a0 = -17.0;
  a4.a1 = 18.0;
  a4.a2 = -19.0;
  a4.a3 = 20.0;

  final result = passStruct16BytesHomogeneousFloatx5Leaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
}

final passStruct16BytesMixedx10Leaf = ffiTestFunctions.lookupFunction<
    Double Function(
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed),
    double Function(
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed,
        Struct16BytesMixed)>("PassStruct16BytesMixedx10", isLeaf: true);

/// On x64, arguments are split over FP and int registers.
/// On x64, it will exhaust the integer registers with the 6th argument.
/// The rest goes on the stack.
/// On arm, arguments are 8 byte aligned.
void testPassStruct16BytesMixedx10Leaf() {
  final a0Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a9 = a9Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2;
  a1.a0 = -3.0;
  a1.a1 = 4;
  a2.a0 = -5.0;
  a2.a1 = 6;
  a3.a0 = -7.0;
  a3.a1 = 8;
  a4.a0 = -9.0;
  a4.a1 = 10;
  a5.a0 = -11.0;
  a5.a1 = 12;
  a6.a0 = -13.0;
  a6.a1 = 14;
  a7.a0 = -15.0;
  a7.a1 = 16;
  a8.a0 = -17.0;
  a8.a1 = 18;
  a9.a0 = -19.0;
  a9.a1 = 20;

  final result =
      passStruct16BytesMixedx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct16BytesMixed2x10Leaf = ffiTestFunctions.lookupFunction<
    Float Function(
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2),
    double Function(
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2,
        Struct16BytesMixed2)>("PassStruct16BytesMixed2x10", isLeaf: true);

/// On x64, arguments are split over FP and int registers.
/// On x64, it will exhaust the integer registers with the 6th argument.
/// The rest goes on the stack.
/// On arm, arguments are 4 byte aligned.
void testPassStruct16BytesMixed2x10Leaf() {
  final a0Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct16BytesMixed2>();
  final Struct16BytesMixed2 a9 = a9Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a0.a3 = 4;
  a1.a0 = -5.0;
  a1.a1 = 6.0;
  a1.a2 = -7.0;
  a1.a3 = 8;
  a2.a0 = -9.0;
  a2.a1 = 10.0;
  a2.a2 = -11.0;
  a2.a3 = 12;
  a3.a0 = -13.0;
  a3.a1 = 14.0;
  a3.a2 = -15.0;
  a3.a3 = 16;
  a4.a0 = -17.0;
  a4.a1 = 18.0;
  a4.a2 = -19.0;
  a4.a3 = 20;
  a5.a0 = -21.0;
  a5.a1 = 22.0;
  a5.a2 = -23.0;
  a5.a3 = 24;
  a6.a0 = -25.0;
  a6.a1 = 26.0;
  a6.a2 = -27.0;
  a6.a3 = 28;
  a7.a0 = -29.0;
  a7.a1 = 30.0;
  a7.a2 = -31.0;
  a7.a3 = 32;
  a8.a0 = -33.0;
  a8.a1 = 34.0;
  a8.a2 = -35.0;
  a8.a3 = 36;
  a9.a0 = -37.0;
  a9.a1 = 38.0;
  a9.a2 = -39.0;
  a9.a3 = 40;

  final result =
      passStruct16BytesMixed2x10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(20.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct17BytesIntx10Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt),
    int Function(
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt,
        Struct17BytesInt)>("PassStruct17BytesIntx10", isLeaf: true);

/// Arguments are passed as pointer to copy on arm64.
/// Tests that the memory allocated for copies are rounded up to word size.
void testPassStruct17BytesIntx10Leaf() {
  final a0Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct17BytesInt>();
  final Struct17BytesInt a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4;
  a1.a1 = -5;
  a1.a2 = 6;
  a2.a0 = -7;
  a2.a1 = 8;
  a2.a2 = -9;
  a3.a0 = 10;
  a3.a1 = -11;
  a3.a2 = 12;
  a4.a0 = -13;
  a4.a1 = 14;
  a4.a2 = -15;
  a5.a0 = 16;
  a5.a1 = -17;
  a5.a2 = 18;
  a6.a0 = -19;
  a6.a1 = 20;
  a6.a2 = -21;
  a7.a0 = 22;
  a7.a1 = -23;
  a7.a2 = 24;
  a8.a0 = -25;
  a8.a1 = 26;
  a8.a2 = -27;
  a9.a0 = 28;
  a9.a1 = -29;
  a9.a2 = 30;

  final result =
      passStruct17BytesIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(15, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct19BytesHomogeneousUint8x10Leaf =
    ffiTestFunctions.lookupFunction<
            Int64 Function(
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8),
            int Function(
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8,
                Struct19BytesHomogeneousUint8)>(
        "PassStruct19BytesHomogeneousUint8x10",
        isLeaf: true);

/// The minimum alignment of this struct is only 1 byte based on its fields.
/// Test that the memory backing these structs is extended to the right size.
///
void testPassStruct19BytesHomogeneousUint8x10Leaf() {
  final a0Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct19BytesHomogeneousUint8>();
  final Struct19BytesHomogeneousUint8 a9 = a9Pointer.ref;

  a0.a0 = 1;
  a0.a1 = 2;
  a0.a2 = 3;
  a0.a3 = 4;
  a0.a4 = 5;
  a0.a5 = 6;
  a0.a6 = 7;
  a0.a7 = 8;
  a0.a8 = 9;
  a0.a9 = 10;
  a0.a10 = 11;
  a0.a11 = 12;
  a0.a12 = 13;
  a0.a13 = 14;
  a0.a14 = 15;
  a0.a15 = 16;
  a0.a16 = 17;
  a0.a17 = 18;
  a0.a18 = 19;
  a1.a0 = 20;
  a1.a1 = 21;
  a1.a2 = 22;
  a1.a3 = 23;
  a1.a4 = 24;
  a1.a5 = 25;
  a1.a6 = 26;
  a1.a7 = 27;
  a1.a8 = 28;
  a1.a9 = 29;
  a1.a10 = 30;
  a1.a11 = 31;
  a1.a12 = 32;
  a1.a13 = 33;
  a1.a14 = 34;
  a1.a15 = 35;
  a1.a16 = 36;
  a1.a17 = 37;
  a1.a18 = 38;
  a2.a0 = 39;
  a2.a1 = 40;
  a2.a2 = 41;
  a2.a3 = 42;
  a2.a4 = 43;
  a2.a5 = 44;
  a2.a6 = 45;
  a2.a7 = 46;
  a2.a8 = 47;
  a2.a9 = 48;
  a2.a10 = 49;
  a2.a11 = 50;
  a2.a12 = 51;
  a2.a13 = 52;
  a2.a14 = 53;
  a2.a15 = 54;
  a2.a16 = 55;
  a2.a17 = 56;
  a2.a18 = 57;
  a3.a0 = 58;
  a3.a1 = 59;
  a3.a2 = 60;
  a3.a3 = 61;
  a3.a4 = 62;
  a3.a5 = 63;
  a3.a6 = 64;
  a3.a7 = 65;
  a3.a8 = 66;
  a3.a9 = 67;
  a3.a10 = 68;
  a3.a11 = 69;
  a3.a12 = 70;
  a3.a13 = 71;
  a3.a14 = 72;
  a3.a15 = 73;
  a3.a16 = 74;
  a3.a17 = 75;
  a3.a18 = 76;
  a4.a0 = 77;
  a4.a1 = 78;
  a4.a2 = 79;
  a4.a3 = 80;
  a4.a4 = 81;
  a4.a5 = 82;
  a4.a6 = 83;
  a4.a7 = 84;
  a4.a8 = 85;
  a4.a9 = 86;
  a4.a10 = 87;
  a4.a11 = 88;
  a4.a12 = 89;
  a4.a13 = 90;
  a4.a14 = 91;
  a4.a15 = 92;
  a4.a16 = 93;
  a4.a17 = 94;
  a4.a18 = 95;
  a5.a0 = 96;
  a5.a1 = 97;
  a5.a2 = 98;
  a5.a3 = 99;
  a5.a4 = 100;
  a5.a5 = 101;
  a5.a6 = 102;
  a5.a7 = 103;
  a5.a8 = 104;
  a5.a9 = 105;
  a5.a10 = 106;
  a5.a11 = 107;
  a5.a12 = 108;
  a5.a13 = 109;
  a5.a14 = 110;
  a5.a15 = 111;
  a5.a16 = 112;
  a5.a17 = 113;
  a5.a18 = 114;
  a6.a0 = 115;
  a6.a1 = 116;
  a6.a2 = 117;
  a6.a3 = 118;
  a6.a4 = 119;
  a6.a5 = 120;
  a6.a6 = 121;
  a6.a7 = 122;
  a6.a8 = 123;
  a6.a9 = 124;
  a6.a10 = 125;
  a6.a11 = 126;
  a6.a12 = 127;
  a6.a13 = 128;
  a6.a14 = 129;
  a6.a15 = 130;
  a6.a16 = 131;
  a6.a17 = 132;
  a6.a18 = 133;
  a7.a0 = 134;
  a7.a1 = 135;
  a7.a2 = 136;
  a7.a3 = 137;
  a7.a4 = 138;
  a7.a5 = 139;
  a7.a6 = 140;
  a7.a7 = 141;
  a7.a8 = 142;
  a7.a9 = 143;
  a7.a10 = 144;
  a7.a11 = 145;
  a7.a12 = 146;
  a7.a13 = 147;
  a7.a14 = 148;
  a7.a15 = 149;
  a7.a16 = 150;
  a7.a17 = 151;
  a7.a18 = 152;
  a8.a0 = 153;
  a8.a1 = 154;
  a8.a2 = 155;
  a8.a3 = 156;
  a8.a4 = 157;
  a8.a5 = 158;
  a8.a6 = 159;
  a8.a7 = 160;
  a8.a8 = 161;
  a8.a9 = 162;
  a8.a10 = 163;
  a8.a11 = 164;
  a8.a12 = 165;
  a8.a13 = 166;
  a8.a14 = 167;
  a8.a15 = 168;
  a8.a16 = 169;
  a8.a17 = 170;
  a8.a18 = 171;
  a9.a0 = 172;
  a9.a1 = 173;
  a9.a2 = 174;
  a9.a3 = 175;
  a9.a4 = 176;
  a9.a5 = 177;
  a9.a6 = 178;
  a9.a7 = 179;
  a9.a8 = 180;
  a9.a9 = 181;
  a9.a10 = 182;
  a9.a11 = 183;
  a9.a12 = 184;
  a9.a13 = 185;
  a9.a14 = 186;
  a9.a15 = 187;
  a9.a16 = 188;
  a9.a17 = 189;
  a9.a18 = 190;

  final result = passStruct19BytesHomogeneousUint8x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(18145, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct20BytesHomogeneousInt32x10Leaf =
    ffiTestFunctions.lookupFunction<
            Int32 Function(
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32),
            int Function(
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32,
                Struct20BytesHomogeneousInt32)>(
        "PassStruct20BytesHomogeneousInt32x10",
        isLeaf: true);

/// Argument too big to go into integer registers on arm64.
/// The arguments are passed as pointers to copies.
/// The amount of arguments exhausts the number of integer registers, such that
/// pointers to copies are also passed on the stack.
void testPassStruct20BytesHomogeneousInt32x10Leaf() {
  final a0Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a0.a3 = 4;
  a0.a4 = -5;
  a1.a0 = 6;
  a1.a1 = -7;
  a1.a2 = 8;
  a1.a3 = -9;
  a1.a4 = 10;
  a2.a0 = -11;
  a2.a1 = 12;
  a2.a2 = -13;
  a2.a3 = 14;
  a2.a4 = -15;
  a3.a0 = 16;
  a3.a1 = -17;
  a3.a2 = 18;
  a3.a3 = -19;
  a3.a4 = 20;
  a4.a0 = -21;
  a4.a1 = 22;
  a4.a2 = -23;
  a4.a3 = 24;
  a4.a4 = -25;
  a5.a0 = 26;
  a5.a1 = -27;
  a5.a2 = 28;
  a5.a3 = -29;
  a5.a4 = 30;
  a6.a0 = -31;
  a6.a1 = 32;
  a6.a2 = -33;
  a6.a3 = 34;
  a6.a4 = -35;
  a7.a0 = 36;
  a7.a1 = -37;
  a7.a2 = 38;
  a7.a3 = -39;
  a7.a4 = 40;
  a8.a0 = -41;
  a8.a1 = 42;
  a8.a2 = -43;
  a8.a3 = 44;
  a8.a4 = -45;
  a9.a0 = 46;
  a9.a1 = -47;
  a9.a2 = 48;
  a9.a3 = -49;
  a9.a4 = 50;

  final result = passStruct20BytesHomogeneousInt32x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(25, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct20BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
        Float Function(Struct20BytesHomogeneousFloat),
        double Function(Struct20BytesHomogeneousFloat)>(
    "PassStruct20BytesHomogeneousFloat",
    isLeaf: true);

/// Argument too big to go into FPU registers in hardfp and arm64.
void testPassStruct20BytesHomogeneousFloatLeaf() {
  final a0Pointer = calloc<Struct20BytesHomogeneousFloat>();
  final Struct20BytesHomogeneousFloat a0 = a0Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a0.a3 = 4.0;
  a0.a4 = -5.0;

  final result = passStruct20BytesHomogeneousFloatLeaf(a0);

  print("result = $result");

  Expect.approxEquals(-3.0, result);

  calloc.free(a0Pointer);
}

final passStruct32BytesHomogeneousDoublex5Leaf =
    ffiTestFunctions.lookupFunction<
            Double Function(
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble),
            double Function(
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble,
                Struct32BytesHomogeneousDouble)>(
        "PassStruct32BytesHomogeneousDoublex5",
        isLeaf: true);

/// Arguments in FPU registers on arm64.
/// 5 struct arguments will exhaust available registers.
void testPassStruct32BytesHomogeneousDoublex5Leaf() {
  final a0Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a4 = a4Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a0.a3 = 4.0;
  a1.a0 = -5.0;
  a1.a1 = 6.0;
  a1.a2 = -7.0;
  a1.a3 = 8.0;
  a2.a0 = -9.0;
  a2.a1 = 10.0;
  a2.a2 = -11.0;
  a2.a3 = 12.0;
  a3.a0 = -13.0;
  a3.a1 = 14.0;
  a3.a2 = -15.0;
  a3.a3 = 16.0;
  a4.a0 = -17.0;
  a4.a1 = 18.0;
  a4.a2 = -19.0;
  a4.a3 = 20.0;

  final result = passStruct32BytesHomogeneousDoublex5Leaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
}

final passStruct40BytesHomogeneousDoubleLeaf = ffiTestFunctions.lookupFunction<
        Double Function(Struct40BytesHomogeneousDouble),
        double Function(Struct40BytesHomogeneousDouble)>(
    "PassStruct40BytesHomogeneousDouble",
    isLeaf: true);

/// Argument too big to go into FPU registers in arm64.
void testPassStruct40BytesHomogeneousDoubleLeaf() {
  final a0Pointer = calloc<Struct40BytesHomogeneousDouble>();
  final Struct40BytesHomogeneousDouble a0 = a0Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a0.a3 = 4.0;
  a0.a4 = -5.0;

  final result = passStruct40BytesHomogeneousDoubleLeaf(a0);

  print("result = $result");

  Expect.approxEquals(-3.0, result);

  calloc.free(a0Pointer);
}

final passStruct1024BytesHomogeneousUint64Leaf =
    ffiTestFunctions.lookupFunction<
            Uint64 Function(Struct1024BytesHomogeneousUint64),
            int Function(Struct1024BytesHomogeneousUint64)>(
        "PassStruct1024BytesHomogeneousUint64",
        isLeaf: true);

/// Test 1kb struct.
void testPassStruct1024BytesHomogeneousUint64Leaf() {
  final a0Pointer = calloc<Struct1024BytesHomogeneousUint64>();
  final Struct1024BytesHomogeneousUint64 a0 = a0Pointer.ref;

  a0.a0 = 1;
  a0.a1 = 2;
  a0.a2 = 3;
  a0.a3 = 4;
  a0.a4 = 5;
  a0.a5 = 6;
  a0.a6 = 7;
  a0.a7 = 8;
  a0.a8 = 9;
  a0.a9 = 10;
  a0.a10 = 11;
  a0.a11 = 12;
  a0.a12 = 13;
  a0.a13 = 14;
  a0.a14 = 15;
  a0.a15 = 16;
  a0.a16 = 17;
  a0.a17 = 18;
  a0.a18 = 19;
  a0.a19 = 20;
  a0.a20 = 21;
  a0.a21 = 22;
  a0.a22 = 23;
  a0.a23 = 24;
  a0.a24 = 25;
  a0.a25 = 26;
  a0.a26 = 27;
  a0.a27 = 28;
  a0.a28 = 29;
  a0.a29 = 30;
  a0.a30 = 31;
  a0.a31 = 32;
  a0.a32 = 33;
  a0.a33 = 34;
  a0.a34 = 35;
  a0.a35 = 36;
  a0.a36 = 37;
  a0.a37 = 38;
  a0.a38 = 39;
  a0.a39 = 40;
  a0.a40 = 41;
  a0.a41 = 42;
  a0.a42 = 43;
  a0.a43 = 44;
  a0.a44 = 45;
  a0.a45 = 46;
  a0.a46 = 47;
  a0.a47 = 48;
  a0.a48 = 49;
  a0.a49 = 50;
  a0.a50 = 51;
  a0.a51 = 52;
  a0.a52 = 53;
  a0.a53 = 54;
  a0.a54 = 55;
  a0.a55 = 56;
  a0.a56 = 57;
  a0.a57 = 58;
  a0.a58 = 59;
  a0.a59 = 60;
  a0.a60 = 61;
  a0.a61 = 62;
  a0.a62 = 63;
  a0.a63 = 64;
  a0.a64 = 65;
  a0.a65 = 66;
  a0.a66 = 67;
  a0.a67 = 68;
  a0.a68 = 69;
  a0.a69 = 70;
  a0.a70 = 71;
  a0.a71 = 72;
  a0.a72 = 73;
  a0.a73 = 74;
  a0.a74 = 75;
  a0.a75 = 76;
  a0.a76 = 77;
  a0.a77 = 78;
  a0.a78 = 79;
  a0.a79 = 80;
  a0.a80 = 81;
  a0.a81 = 82;
  a0.a82 = 83;
  a0.a83 = 84;
  a0.a84 = 85;
  a0.a85 = 86;
  a0.a86 = 87;
  a0.a87 = 88;
  a0.a88 = 89;
  a0.a89 = 90;
  a0.a90 = 91;
  a0.a91 = 92;
  a0.a92 = 93;
  a0.a93 = 94;
  a0.a94 = 95;
  a0.a95 = 96;
  a0.a96 = 97;
  a0.a97 = 98;
  a0.a98 = 99;
  a0.a99 = 100;
  a0.a100 = 101;
  a0.a101 = 102;
  a0.a102 = 103;
  a0.a103 = 104;
  a0.a104 = 105;
  a0.a105 = 106;
  a0.a106 = 107;
  a0.a107 = 108;
  a0.a108 = 109;
  a0.a109 = 110;
  a0.a110 = 111;
  a0.a111 = 112;
  a0.a112 = 113;
  a0.a113 = 114;
  a0.a114 = 115;
  a0.a115 = 116;
  a0.a116 = 117;
  a0.a117 = 118;
  a0.a118 = 119;
  a0.a119 = 120;
  a0.a120 = 121;
  a0.a121 = 122;
  a0.a122 = 123;
  a0.a123 = 124;
  a0.a124 = 125;
  a0.a125 = 126;
  a0.a126 = 127;
  a0.a127 = 128;

  final result = passStruct1024BytesHomogeneousUint64Leaf(a0);

  print("result = $result");

  Expect.equals(8256, result);

  calloc.free(a0Pointer);
}

final passFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf =
    ffiTestFunctions.lookupFunction<
            Float Function(
                Float,
                Struct16BytesHomogeneousFloat,
                Float,
                Struct16BytesHomogeneousFloat,
                Float,
                Struct16BytesHomogeneousFloat,
                Float,
                Struct16BytesHomogeneousFloat,
                Float),
            double Function(
                double,
                Struct16BytesHomogeneousFloat,
                double,
                Struct16BytesHomogeneousFloat,
                double,
                Struct16BytesHomogeneousFloat,
                double,
                Struct16BytesHomogeneousFloat,
                double)>("PassFloatStruct16BytesHomogeneousFloatFloatStruct1",
        isLeaf: true);

/// Tests the alignment of structs in FPU registers and backfilling.
void testPassFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf() {
  double a0;
  final a1Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a1 = a1Pointer.ref;
  double a2;
  final a3Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a3 = a3Pointer.ref;
  double a4;
  final a5Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a5 = a5Pointer.ref;
  double a6;
  final a7Pointer = calloc<Struct16BytesHomogeneousFloat>();
  final Struct16BytesHomogeneousFloat a7 = a7Pointer.ref;
  double a8;

  a0 = -1.0;
  a1.a0 = 2.0;
  a1.a1 = -3.0;
  a1.a2 = 4.0;
  a1.a3 = -5.0;
  a2 = 6.0;
  a3.a0 = -7.0;
  a3.a1 = 8.0;
  a3.a2 = -9.0;
  a3.a3 = 10.0;
  a4 = -11.0;
  a5.a0 = 12.0;
  a5.a1 = -13.0;
  a5.a2 = 14.0;
  a5.a3 = -15.0;
  a6 = 16.0;
  a7.a0 = -17.0;
  a7.a1 = 18.0;
  a7.a2 = -19.0;
  a7.a3 = 20.0;
  a8 = -21.0;

  final result = passFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.approxEquals(-11.0, result);

  calloc.free(a1Pointer);
  calloc.free(a3Pointer);
  calloc.free(a5Pointer);
  calloc.free(a7Pointer);
}

final passFloatStruct32BytesHomogeneousDoubleFloatStructLeaf =
    ffiTestFunctions.lookupFunction<
            Double Function(
                Float,
                Struct32BytesHomogeneousDouble,
                Float,
                Struct32BytesHomogeneousDouble,
                Float,
                Struct32BytesHomogeneousDouble,
                Float,
                Struct32BytesHomogeneousDouble,
                Float),
            double Function(
                double,
                Struct32BytesHomogeneousDouble,
                double,
                Struct32BytesHomogeneousDouble,
                double,
                Struct32BytesHomogeneousDouble,
                double,
                Struct32BytesHomogeneousDouble,
                double)>("PassFloatStruct32BytesHomogeneousDoubleFloatStruct",
        isLeaf: true);

/// Tests the alignment of structs in FPU registers and backfilling.
void testPassFloatStruct32BytesHomogeneousDoubleFloatStructLeaf() {
  double a0;
  final a1Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a1 = a1Pointer.ref;
  double a2;
  final a3Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a3 = a3Pointer.ref;
  double a4;
  final a5Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a5 = a5Pointer.ref;
  double a6;
  final a7Pointer = calloc<Struct32BytesHomogeneousDouble>();
  final Struct32BytesHomogeneousDouble a7 = a7Pointer.ref;
  double a8;

  a0 = -1.0;
  a1.a0 = 2.0;
  a1.a1 = -3.0;
  a1.a2 = 4.0;
  a1.a3 = -5.0;
  a2 = 6.0;
  a3.a0 = -7.0;
  a3.a1 = 8.0;
  a3.a2 = -9.0;
  a3.a3 = 10.0;
  a4 = -11.0;
  a5.a0 = 12.0;
  a5.a1 = -13.0;
  a5.a2 = 14.0;
  a5.a3 = -15.0;
  a6 = 16.0;
  a7.a0 = -17.0;
  a7.a1 = 18.0;
  a7.a2 = -19.0;
  a7.a3 = 20.0;
  a8 = -21.0;

  final result = passFloatStruct32BytesHomogeneousDoubleFloatStructLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.approxEquals(-11.0, result);

  calloc.free(a1Pointer);
  calloc.free(a3Pointer);
  calloc.free(a5Pointer);
  calloc.free(a7Pointer);
}

final passInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf =
    ffiTestFunctions.lookupFunction<
            Double Function(Int8, Struct16BytesMixed, Int8, Struct16BytesMixed,
                Int8, Struct16BytesMixed, Int8, Struct16BytesMixed, Int8),
            double Function(
                int,
                Struct16BytesMixed,
                int,
                Struct16BytesMixed,
                int,
                Struct16BytesMixed,
                int,
                Struct16BytesMixed,
                int)>("PassInt8Struct16BytesMixedInt8Struct16BytesMixedIn",
        isLeaf: true);

/// Tests the alignment of structs in integers registers and on the stack.
/// Arm32 aligns this struct at 8.
/// Also, arm32 allocates the second struct partially in registers, partially
/// on stack.
/// Test backfilling of integer registers.
void testPassInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf() {
  int a0;
  final a1Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a1 = a1Pointer.ref;
  int a2;
  final a3Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a3 = a3Pointer.ref;
  int a4;
  final a5Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a5 = a5Pointer.ref;
  int a6;
  final a7Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a7 = a7Pointer.ref;
  int a8;

  a0 = -1;
  a1.a0 = 2.0;
  a1.a1 = -3;
  a2 = 4;
  a3.a0 = -5.0;
  a3.a1 = 6;
  a4 = -7;
  a5.a0 = 8.0;
  a5.a1 = -9;
  a6 = 10;
  a7.a0 = -11.0;
  a7.a1 = 12;
  a8 = -13;

  final result = passInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.approxEquals(-7.0, result);

  calloc.free(a1Pointer);
  calloc.free(a3Pointer);
  calloc.free(a5Pointer);
  calloc.free(a7Pointer);
}

final passDoublex6Struct16BytesMixedx4Int32Leaf =
    ffiTestFunctions.lookupFunction<
        Double Function(
            Double,
            Double,
            Double,
            Double,
            Double,
            Double,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Int32),
        double Function(
            double,
            double,
            double,
            double,
            double,
            double,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Struct16BytesMixed,
            int)>("PassDoublex6Struct16BytesMixedx4Int32", isLeaf: true);

/// On Linux x64, it will exhaust xmm registers first, after 6 doubles and 2
/// structs. The rest of the structs will go on the stack.
/// The int will be backfilled into the int register.
void testPassDoublex6Struct16BytesMixedx4Int32Leaf() {
  double a0;
  double a1;
  double a2;
  double a3;
  double a4;
  double a5;
  final a6Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a9 = a9Pointer.ref;
  int a10;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;
  a3 = 4.0;
  a4 = -5.0;
  a5 = 6.0;
  a6.a0 = -7.0;
  a6.a1 = 8;
  a7.a0 = -9.0;
  a7.a1 = 10;
  a8.a0 = -11.0;
  a8.a1 = 12;
  a9.a0 = -13.0;
  a9.a1 = 14;
  a10 = -15;

  final result = passDoublex6Struct16BytesMixedx4Int32Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);

  print("result = $result");

  Expect.approxEquals(-8.0, result);

  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passInt32x4Struct16BytesMixedx4DoubleLeaf =
    ffiTestFunctions.lookupFunction<
        Double Function(Int32, Int32, Int32, Int32, Struct16BytesMixed,
            Struct16BytesMixed, Struct16BytesMixed, Struct16BytesMixed, Double),
        double Function(
            int,
            int,
            int,
            int,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Struct16BytesMixed,
            Struct16BytesMixed,
            double)>("PassInt32x4Struct16BytesMixedx4Double", isLeaf: true);

/// On Linux x64, it will exhaust int registers first.
/// The rest of the structs will go on the stack.
/// The double will be backfilled into the xmm register.
void testPassInt32x4Struct16BytesMixedx4DoubleLeaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  final a4Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct16BytesMixed>();
  final Struct16BytesMixed a7 = a7Pointer.ref;
  double a8;

  a0 = -1;
  a1 = 2;
  a2 = -3;
  a3 = 4;
  a4.a0 = -5.0;
  a4.a1 = 6;
  a5.a0 = -7.0;
  a5.a1 = 8;
  a6.a0 = -9.0;
  a6.a1 = 10;
  a7.a0 = -11.0;
  a7.a1 = 12;
  a8 = -13.0;

  final result = passInt32x4Struct16BytesMixedx4DoubleLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.approxEquals(-7.0, result);

  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
}

final passStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf =
    ffiTestFunctions.lookupFunction<
            Double Function(Struct40BytesHomogeneousDouble,
                Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat),
            double Function(Struct40BytesHomogeneousDouble,
                Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat)>(
        "PassStruct40BytesHomogeneousDoubleStruct4BytesHomo",
        isLeaf: true);

/// On various architectures, first struct is allocated on stack.
/// Check that the other two arguments are allocated on registers.
void testPassStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf() {
  final a0Pointer = calloc<Struct40BytesHomogeneousDouble>();
  final Struct40BytesHomogeneousDouble a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a2 = a2Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;
  a0.a2 = -3.0;
  a0.a3 = 4.0;
  a0.a4 = -5.0;
  a1.a0 = 6;
  a1.a1 = -7;
  a2.a0 = 8.0;
  a2.a1 = -9.0;

  final result =
      passStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf(a0, a1, a2);

  print("result = $result");

  Expect.approxEquals(-5.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
}

final passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf =
    ffiTestFunctions.lookupFunction<
        Double Function(
            Int32,
            Int32,
            Int32,
            Int32,
            Int32,
            Int32,
            Int32,
            Int32,
            Double,
            Double,
            Double,
            Double,
            Double,
            Double,
            Double,
            Double,
            Int64,
            Int8,
            Struct1ByteInt,
            Int64,
            Int8,
            Struct4BytesHomogeneousInt16,
            Int64,
            Int8,
            Struct8BytesInt,
            Int64,
            Int8,
            Struct8BytesHomogeneousFloat,
            Int64,
            Int8,
            Struct8BytesMixed,
            Int64,
            Int8,
            StructAlignmentInt16,
            Int64,
            Int8,
            StructAlignmentInt32,
            Int64,
            Int8,
            StructAlignmentInt64),
        double Function(
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            double,
            double,
            double,
            double,
            double,
            double,
            double,
            double,
            int,
            int,
            Struct1ByteInt,
            int,
            int,
            Struct4BytesHomogeneousInt16,
            int,
            int,
            Struct8BytesInt,
            int,
            int,
            Struct8BytesHomogeneousFloat,
            int,
            int,
            Struct8BytesMixed,
            int,
            int,
            StructAlignmentInt16,
            int,
            int,
            StructAlignmentInt32,
            int,
            int,
            StructAlignmentInt64)>("PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int", isLeaf: true);

/// Test alignment and padding of 16 byte int within struct.
void testPassInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;
  int a7;
  double a8;
  double a9;
  double a10;
  double a11;
  double a12;
  double a13;
  double a14;
  double a15;
  int a16;
  int a17;
  final a18Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a18 = a18Pointer.ref;
  int a19;
  int a20;
  final a21Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a21 = a21Pointer.ref;
  int a22;
  int a23;
  final a24Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a24 = a24Pointer.ref;
  int a25;
  int a26;
  final a27Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a27 = a27Pointer.ref;
  int a28;
  int a29;
  final a30Pointer = calloc<Struct8BytesMixed>();
  final Struct8BytesMixed a30 = a30Pointer.ref;
  int a31;
  int a32;
  final a33Pointer = calloc<StructAlignmentInt16>();
  final StructAlignmentInt16 a33 = a33Pointer.ref;
  int a34;
  int a35;
  final a36Pointer = calloc<StructAlignmentInt32>();
  final StructAlignmentInt32 a36 = a36Pointer.ref;
  int a37;
  int a38;
  final a39Pointer = calloc<StructAlignmentInt64>();
  final StructAlignmentInt64 a39 = a39Pointer.ref;

  a0 = -1;
  a1 = 2;
  a2 = -3;
  a3 = 4;
  a4 = -5;
  a5 = 6;
  a6 = -7;
  a7 = 8;
  a8 = -9.0;
  a9 = 10.0;
  a10 = -11.0;
  a11 = 12.0;
  a12 = -13.0;
  a13 = 14.0;
  a14 = -15.0;
  a15 = 16.0;
  a16 = -17;
  a17 = 18;
  a18.a0 = -19;
  a19 = 20;
  a20 = -21;
  a21.a0 = 22;
  a21.a1 = -23;
  a22 = 24;
  a23 = -25;
  a24.a0 = 26;
  a24.a1 = -27;
  a24.a2 = 28;
  a25 = -29;
  a26 = 30;
  a27.a0 = -31.0;
  a27.a1 = 32.0;
  a28 = -33;
  a29 = 34;
  a30.a0 = -35.0;
  a30.a1 = 36;
  a30.a2 = -37;
  a31 = 38;
  a32 = -39;
  a33.a0 = 40;
  a33.a1 = -41;
  a33.a2 = 42;
  a34 = -43;
  a35 = 44;
  a36.a0 = -45;
  a36.a1 = 46;
  a36.a2 = -47;
  a37 = 48;
  a38 = -49;
  a39.a0 = 50;
  a39.a1 = -51;
  a39.a2 = 52;

  final result = passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf(
      a0,
      a1,
      a2,
      a3,
      a4,
      a5,
      a6,
      a7,
      a8,
      a9,
      a10,
      a11,
      a12,
      a13,
      a14,
      a15,
      a16,
      a17,
      a18,
      a19,
      a20,
      a21,
      a22,
      a23,
      a24,
      a25,
      a26,
      a27,
      a28,
      a29,
      a30,
      a31,
      a32,
      a33,
      a34,
      a35,
      a36,
      a37,
      a38,
      a39);

  print("result = $result");

  Expect.approxEquals(26.0, result);

  calloc.free(a18Pointer);
  calloc.free(a21Pointer);
  calloc.free(a24Pointer);
  calloc.free(a27Pointer);
  calloc.free(a30Pointer);
  calloc.free(a33Pointer);
  calloc.free(a36Pointer);
  calloc.free(a39Pointer);
}

final passStructAlignmentInt16Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(StructAlignmentInt16),
    int Function(
        StructAlignmentInt16)>("PassStructAlignmentInt16", isLeaf: true);

/// Test alignment and padding of 16 byte int within struct.
void testPassStructAlignmentInt16Leaf() {
  final a0Pointer = calloc<StructAlignmentInt16>();
  final StructAlignmentInt16 a0 = a0Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;

  final result = passStructAlignmentInt16Leaf(a0);

  print("result = $result");

  Expect.equals(-2, result);

  calloc.free(a0Pointer);
}

final passStructAlignmentInt32Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(StructAlignmentInt32),
    int Function(
        StructAlignmentInt32)>("PassStructAlignmentInt32", isLeaf: true);

/// Test alignment and padding of 32 byte int within struct.
void testPassStructAlignmentInt32Leaf() {
  final a0Pointer = calloc<StructAlignmentInt32>();
  final StructAlignmentInt32 a0 = a0Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;

  final result = passStructAlignmentInt32Leaf(a0);

  print("result = $result");

  Expect.equals(-2, result);

  calloc.free(a0Pointer);
}

final passStructAlignmentInt64Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(StructAlignmentInt64),
    int Function(
        StructAlignmentInt64)>("PassStructAlignmentInt64", isLeaf: true);

/// Test alignment and padding of 64 byte int within struct.
void testPassStructAlignmentInt64Leaf() {
  final a0Pointer = calloc<StructAlignmentInt64>();
  final StructAlignmentInt64 a0 = a0Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;

  final result = passStructAlignmentInt64Leaf(a0);

  print("result = $result");

  Expect.equals(-2, result);

  calloc.free(a0Pointer);
}

final passStruct8BytesNestedIntx10Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt),
    int Function(
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt,
        Struct8BytesNestedInt)>("PassStruct8BytesNestedIntx10", isLeaf: true);

/// Simple nested struct. No alignment gaps on any architectures.
/// 10 arguments exhaust registers on all platforms.
void testPassStruct8BytesNestedIntx10Leaf() {
  final a0Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a9 = a9Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a1.a0 = -3;
  a0.a1.a1 = 4;
  a1.a0.a0 = -5;
  a1.a0.a1 = 6;
  a1.a1.a0 = -7;
  a1.a1.a1 = 8;
  a2.a0.a0 = -9;
  a2.a0.a1 = 10;
  a2.a1.a0 = -11;
  a2.a1.a1 = 12;
  a3.a0.a0 = -13;
  a3.a0.a1 = 14;
  a3.a1.a0 = -15;
  a3.a1.a1 = 16;
  a4.a0.a0 = -17;
  a4.a0.a1 = 18;
  a4.a1.a0 = -19;
  a4.a1.a1 = 20;
  a5.a0.a0 = -21;
  a5.a0.a1 = 22;
  a5.a1.a0 = -23;
  a5.a1.a1 = 24;
  a6.a0.a0 = -25;
  a6.a0.a1 = 26;
  a6.a1.a0 = -27;
  a6.a1.a1 = 28;
  a7.a0.a0 = -29;
  a7.a0.a1 = 30;
  a7.a1.a0 = -31;
  a7.a1.a1 = 32;
  a8.a0.a0 = -33;
  a8.a0.a1 = 34;
  a8.a1.a0 = -35;
  a8.a1.a1 = 36;
  a9.a0.a0 = -37;
  a9.a0.a1 = 38;
  a9.a1.a0 = -39;
  a9.a1.a1 = 40;

  final result =
      passStruct8BytesNestedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(20, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesNestedFloatx10Leaf = ffiTestFunctions.lookupFunction<
        Float Function(
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat),
        double Function(
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat,
            Struct8BytesNestedFloat)>("PassStruct8BytesNestedFloatx10",
    isLeaf: true);

/// Simple nested struct. No alignment gaps on any architectures.
/// 10 arguments exhaust fpu registers on all platforms.
void testPassStruct8BytesNestedFloatx10Leaf() {
  final a0Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesNestedFloat>();
  final Struct8BytesNestedFloat a9 = a9Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1.a0 = 2.0;
  a1.a0.a0 = -3.0;
  a1.a1.a0 = 4.0;
  a2.a0.a0 = -5.0;
  a2.a1.a0 = 6.0;
  a3.a0.a0 = -7.0;
  a3.a1.a0 = 8.0;
  a4.a0.a0 = -9.0;
  a4.a1.a0 = 10.0;
  a5.a0.a0 = -11.0;
  a5.a1.a0 = 12.0;
  a6.a0.a0 = -13.0;
  a6.a1.a0 = 14.0;
  a7.a0.a0 = -15.0;
  a7.a1.a0 = 16.0;
  a8.a0.a0 = -17.0;
  a8.a1.a0 = 18.0;
  a9.a0.a0 = -19.0;
  a9.a1.a0 = 20.0;

  final result = passStruct8BytesNestedFloatx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesNestedFloat2x10Leaf = ffiTestFunctions.lookupFunction<
        Float Function(
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2),
        double Function(
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2,
            Struct8BytesNestedFloat2)>("PassStruct8BytesNestedFloat2x10",
    isLeaf: true);

/// Simple nested struct. No alignment gaps on any architectures.
/// 10 arguments exhaust fpu registers on all platforms.
/// The nesting is irregular, testing homogenous float rules on arm and arm64,
/// and the fpu register usage on x64.
void testPassStruct8BytesNestedFloat2x10Leaf() {
  final a0Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesNestedFloat2>();
  final Struct8BytesNestedFloat2 a9 = a9Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1 = 2.0;
  a1.a0.a0 = -3.0;
  a1.a1 = 4.0;
  a2.a0.a0 = -5.0;
  a2.a1 = 6.0;
  a3.a0.a0 = -7.0;
  a3.a1 = 8.0;
  a4.a0.a0 = -9.0;
  a4.a1 = 10.0;
  a5.a0.a0 = -11.0;
  a5.a1 = 12.0;
  a6.a0.a0 = -13.0;
  a6.a1 = 14.0;
  a7.a0.a0 = -15.0;
  a7.a1 = 16.0;
  a8.a0.a0 = -17.0;
  a8.a1 = 18.0;
  a9.a0.a0 = -19.0;
  a9.a1 = 20.0;

  final result = passStruct8BytesNestedFloat2x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesNestedMixedx10Leaf = ffiTestFunctions.lookupFunction<
        Double Function(
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed),
        double Function(
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed,
            Struct8BytesNestedMixed)>("PassStruct8BytesNestedMixedx10",
    isLeaf: true);

/// Simple nested struct. No alignment gaps on any architectures.
/// 10 arguments exhaust all registers on all platforms.
void testPassStruct8BytesNestedMixedx10Leaf() {
  final a0Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesNestedMixed>();
  final Struct8BytesNestedMixed a9 = a9Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a1.a0 = -3.0;
  a1.a0.a0 = 4;
  a1.a0.a1 = -5;
  a1.a1.a0 = 6.0;
  a2.a0.a0 = -7;
  a2.a0.a1 = 8;
  a2.a1.a0 = -9.0;
  a3.a0.a0 = 10;
  a3.a0.a1 = -11;
  a3.a1.a0 = 12.0;
  a4.a0.a0 = -13;
  a4.a0.a1 = 14;
  a4.a1.a0 = -15.0;
  a5.a0.a0 = 16;
  a5.a0.a1 = -17;
  a5.a1.a0 = 18.0;
  a6.a0.a0 = -19;
  a6.a0.a1 = 20;
  a6.a1.a0 = -21.0;
  a7.a0.a0 = 22;
  a7.a0.a1 = -23;
  a7.a1.a0 = 24.0;
  a8.a0.a0 = -25;
  a8.a0.a1 = 26;
  a8.a1.a0 = -27.0;
  a9.a0.a0 = 28;
  a9.a0.a1 = -29;
  a9.a1.a0 = 30.0;

  final result = passStruct8BytesNestedMixedx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(15.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct16BytesNestedIntx2Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(Struct16BytesNestedInt, Struct16BytesNestedInt),
    int Function(Struct16BytesNestedInt,
        Struct16BytesNestedInt)>("PassStruct16BytesNestedIntx2", isLeaf: true);

/// Deeper nested struct to test recursive member access.
void testPassStruct16BytesNestedIntx2Leaf() {
  final a0Pointer = calloc<Struct16BytesNestedInt>();
  final Struct16BytesNestedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct16BytesNestedInt>();
  final Struct16BytesNestedInt a1 = a1Pointer.ref;

  a0.a0.a0.a0 = -1;
  a0.a0.a0.a1 = 2;
  a0.a0.a1.a0 = -3;
  a0.a0.a1.a1 = 4;
  a0.a1.a0.a0 = -5;
  a0.a1.a0.a1 = 6;
  a0.a1.a1.a0 = -7;
  a0.a1.a1.a1 = 8;
  a1.a0.a0.a0 = -9;
  a1.a0.a0.a1 = 10;
  a1.a0.a1.a0 = -11;
  a1.a0.a1.a1 = 12;
  a1.a1.a0.a0 = -13;
  a1.a1.a0.a1 = 14;
  a1.a1.a1.a0 = -15;
  a1.a1.a1.a1 = 16;

  final result = passStruct16BytesNestedIntx2Leaf(a0, a1);

  print("result = $result");

  Expect.equals(8, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final passStruct32BytesNestedIntx2Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(Struct32BytesNestedInt, Struct32BytesNestedInt),
    int Function(Struct32BytesNestedInt,
        Struct32BytesNestedInt)>("PassStruct32BytesNestedIntx2", isLeaf: true);

/// Even deeper nested struct to test recursive member access.
void testPassStruct32BytesNestedIntx2Leaf() {
  final a0Pointer = calloc<Struct32BytesNestedInt>();
  final Struct32BytesNestedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct32BytesNestedInt>();
  final Struct32BytesNestedInt a1 = a1Pointer.ref;

  a0.a0.a0.a0.a0 = -1;
  a0.a0.a0.a0.a1 = 2;
  a0.a0.a0.a1.a0 = -3;
  a0.a0.a0.a1.a1 = 4;
  a0.a0.a1.a0.a0 = -5;
  a0.a0.a1.a0.a1 = 6;
  a0.a0.a1.a1.a0 = -7;
  a0.a0.a1.a1.a1 = 8;
  a0.a1.a0.a0.a0 = -9;
  a0.a1.a0.a0.a1 = 10;
  a0.a1.a0.a1.a0 = -11;
  a0.a1.a0.a1.a1 = 12;
  a0.a1.a1.a0.a0 = -13;
  a0.a1.a1.a0.a1 = 14;
  a0.a1.a1.a1.a0 = -15;
  a0.a1.a1.a1.a1 = 16;
  a1.a0.a0.a0.a0 = -17;
  a1.a0.a0.a0.a1 = 18;
  a1.a0.a0.a1.a0 = -19;
  a1.a0.a0.a1.a1 = 20;
  a1.a0.a1.a0.a0 = -21;
  a1.a0.a1.a0.a1 = 22;
  a1.a0.a1.a1.a0 = -23;
  a1.a0.a1.a1.a1 = 24;
  a1.a1.a0.a0.a0 = -25;
  a1.a1.a0.a0.a1 = 26;
  a1.a1.a0.a1.a0 = -27;
  a1.a1.a0.a1.a1 = 28;
  a1.a1.a1.a0.a0 = -29;
  a1.a1.a1.a0.a1 = 30;
  a1.a1.a1.a1.a0 = -31;
  a1.a1.a1.a1.a1 = 32;

  final result = passStruct32BytesNestedIntx2Leaf(a0, a1);

  print("result = $result");

  Expect.equals(16, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final passStructNestedIntStructAlignmentInt16Leaf =
    ffiTestFunctions.lookupFunction<
            Int64 Function(StructNestedIntStructAlignmentInt16),
            int Function(StructNestedIntStructAlignmentInt16)>(
        "PassStructNestedIntStructAlignmentInt16",
        isLeaf: true);

/// Test alignment and padding of nested struct with 16 byte int.
void testPassStructNestedIntStructAlignmentInt16Leaf() {
  final a0Pointer = calloc<StructNestedIntStructAlignmentInt16>();
  final StructNestedIntStructAlignmentInt16 a0 = a0Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a0.a2 = -3;
  a0.a1.a0 = 4;
  a0.a1.a1 = -5;
  a0.a1.a2 = 6;

  final result = passStructNestedIntStructAlignmentInt16Leaf(a0);

  print("result = $result");

  Expect.equals(3, result);

  calloc.free(a0Pointer);
}

final passStructNestedIntStructAlignmentInt32Leaf =
    ffiTestFunctions.lookupFunction<
            Int64 Function(StructNestedIntStructAlignmentInt32),
            int Function(StructNestedIntStructAlignmentInt32)>(
        "PassStructNestedIntStructAlignmentInt32",
        isLeaf: true);

/// Test alignment and padding of nested struct with 32 byte int.
void testPassStructNestedIntStructAlignmentInt32Leaf() {
  final a0Pointer = calloc<StructNestedIntStructAlignmentInt32>();
  final StructNestedIntStructAlignmentInt32 a0 = a0Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a0.a2 = -3;
  a0.a1.a0 = 4;
  a0.a1.a1 = -5;
  a0.a1.a2 = 6;

  final result = passStructNestedIntStructAlignmentInt32Leaf(a0);

  print("result = $result");

  Expect.equals(3, result);

  calloc.free(a0Pointer);
}

final passStructNestedIntStructAlignmentInt64Leaf =
    ffiTestFunctions.lookupFunction<
            Int64 Function(StructNestedIntStructAlignmentInt64),
            int Function(StructNestedIntStructAlignmentInt64)>(
        "PassStructNestedIntStructAlignmentInt64",
        isLeaf: true);

/// Test alignment and padding of nested struct with 64 byte int.
void testPassStructNestedIntStructAlignmentInt64Leaf() {
  final a0Pointer = calloc<StructNestedIntStructAlignmentInt64>();
  final StructNestedIntStructAlignmentInt64 a0 = a0Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a0.a2 = -3;
  a0.a1.a0 = 4;
  a0.a1.a1 = -5;
  a0.a1.a2 = 6;

  final result = passStructNestedIntStructAlignmentInt64Leaf(a0);

  print("result = $result");

  Expect.equals(3, result);

  calloc.free(a0Pointer);
}

final passStructNestedIrregularEvenBiggerx4Leaf =
    ffiTestFunctions.lookupFunction<
            Double Function(
                StructNestedIrregularEvenBigger,
                StructNestedIrregularEvenBigger,
                StructNestedIrregularEvenBigger,
                StructNestedIrregularEvenBigger),
            double Function(
                StructNestedIrregularEvenBigger,
                StructNestedIrregularEvenBigger,
                StructNestedIrregularEvenBigger,
                StructNestedIrregularEvenBigger)>(
        "PassStructNestedIrregularEvenBiggerx4",
        isLeaf: true);

/// Return big irregular struct as smoke test.
void testPassStructNestedIrregularEvenBiggerx4Leaf() {
  final a0Pointer = calloc<StructNestedIrregularEvenBigger>();
  final StructNestedIrregularEvenBigger a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructNestedIrregularEvenBigger>();
  final StructNestedIrregularEvenBigger a1 = a1Pointer.ref;
  final a2Pointer = calloc<StructNestedIrregularEvenBigger>();
  final StructNestedIrregularEvenBigger a2 = a2Pointer.ref;
  final a3Pointer = calloc<StructNestedIrregularEvenBigger>();
  final StructNestedIrregularEvenBigger a3 = a3Pointer.ref;

  a0.a0 = 1;
  a0.a1.a0.a0 = 2;
  a0.a1.a0.a1.a0.a0 = -3;
  a0.a1.a0.a1.a0.a1 = 4;
  a0.a1.a0.a1.a1.a0 = -5.0;
  a0.a1.a0.a2 = 6;
  a0.a1.a0.a3.a0.a0 = -7.0;
  a0.a1.a0.a3.a1 = 8.0;
  a0.a1.a0.a4 = 9;
  a0.a1.a0.a5.a0.a0 = 10.0;
  a0.a1.a0.a5.a1.a0 = -11.0;
  a0.a1.a0.a6 = 12;
  a0.a1.a1.a0.a0 = -13;
  a0.a1.a1.a0.a1 = 14;
  a0.a1.a1.a1.a0 = -15.0;
  a0.a1.a2 = 16.0;
  a0.a1.a3 = -17.0;
  a0.a2.a0.a0 = 18;
  a0.a2.a0.a1.a0.a0 = -19;
  a0.a2.a0.a1.a0.a1 = 20;
  a0.a2.a0.a1.a1.a0 = -21.0;
  a0.a2.a0.a2 = 22;
  a0.a2.a0.a3.a0.a0 = -23.0;
  a0.a2.a0.a3.a1 = 24.0;
  a0.a2.a0.a4 = 25;
  a0.a2.a0.a5.a0.a0 = 26.0;
  a0.a2.a0.a5.a1.a0 = -27.0;
  a0.a2.a0.a6 = 28;
  a0.a2.a1.a0.a0 = -29;
  a0.a2.a1.a0.a1 = 30;
  a0.a2.a1.a1.a0 = -31.0;
  a0.a2.a2 = 32.0;
  a0.a2.a3 = -33.0;
  a0.a3 = 34.0;
  a1.a0 = 35;
  a1.a1.a0.a0 = 36;
  a1.a1.a0.a1.a0.a0 = -37;
  a1.a1.a0.a1.a0.a1 = 38;
  a1.a1.a0.a1.a1.a0 = -39.0;
  a1.a1.a0.a2 = 40;
  a1.a1.a0.a3.a0.a0 = -41.0;
  a1.a1.a0.a3.a1 = 42.0;
  a1.a1.a0.a4 = 43;
  a1.a1.a0.a5.a0.a0 = 44.0;
  a1.a1.a0.a5.a1.a0 = -45.0;
  a1.a1.a0.a6 = 46;
  a1.a1.a1.a0.a0 = -47;
  a1.a1.a1.a0.a1 = 48;
  a1.a1.a1.a1.a0 = -49.0;
  a1.a1.a2 = 50.0;
  a1.a1.a3 = -51.0;
  a1.a2.a0.a0 = 52;
  a1.a2.a0.a1.a0.a0 = -53;
  a1.a2.a0.a1.a0.a1 = 54;
  a1.a2.a0.a1.a1.a0 = -55.0;
  a1.a2.a0.a2 = 56;
  a1.a2.a0.a3.a0.a0 = -57.0;
  a1.a2.a0.a3.a1 = 58.0;
  a1.a2.a0.a4 = 59;
  a1.a2.a0.a5.a0.a0 = 60.0;
  a1.a2.a0.a5.a1.a0 = -61.0;
  a1.a2.a0.a6 = 62;
  a1.a2.a1.a0.a0 = -63;
  a1.a2.a1.a0.a1 = 64;
  a1.a2.a1.a1.a0 = -65.0;
  a1.a2.a2 = 66.0;
  a1.a2.a3 = -67.0;
  a1.a3 = 68.0;
  a2.a0 = 69;
  a2.a1.a0.a0 = 70;
  a2.a1.a0.a1.a0.a0 = -71;
  a2.a1.a0.a1.a0.a1 = 72;
  a2.a1.a0.a1.a1.a0 = -73.0;
  a2.a1.a0.a2 = 74;
  a2.a1.a0.a3.a0.a0 = -75.0;
  a2.a1.a0.a3.a1 = 76.0;
  a2.a1.a0.a4 = 77;
  a2.a1.a0.a5.a0.a0 = 78.0;
  a2.a1.a0.a5.a1.a0 = -79.0;
  a2.a1.a0.a6 = 80;
  a2.a1.a1.a0.a0 = -81;
  a2.a1.a1.a0.a1 = 82;
  a2.a1.a1.a1.a0 = -83.0;
  a2.a1.a2 = 84.0;
  a2.a1.a3 = -85.0;
  a2.a2.a0.a0 = 86;
  a2.a2.a0.a1.a0.a0 = -87;
  a2.a2.a0.a1.a0.a1 = 88;
  a2.a2.a0.a1.a1.a0 = -89.0;
  a2.a2.a0.a2 = 90;
  a2.a2.a0.a3.a0.a0 = -91.0;
  a2.a2.a0.a3.a1 = 92.0;
  a2.a2.a0.a4 = 93;
  a2.a2.a0.a5.a0.a0 = 94.0;
  a2.a2.a0.a5.a1.a0 = -95.0;
  a2.a2.a0.a6 = 96;
  a2.a2.a1.a0.a0 = -97;
  a2.a2.a1.a0.a1 = 98;
  a2.a2.a1.a1.a0 = -99.0;
  a2.a2.a2 = 100.0;
  a2.a2.a3 = -101.0;
  a2.a3 = 102.0;
  a3.a0 = 103;
  a3.a1.a0.a0 = 104;
  a3.a1.a0.a1.a0.a0 = -105;
  a3.a1.a0.a1.a0.a1 = 106;
  a3.a1.a0.a1.a1.a0 = -107.0;
  a3.a1.a0.a2 = 108;
  a3.a1.a0.a3.a0.a0 = -109.0;
  a3.a1.a0.a3.a1 = 110.0;
  a3.a1.a0.a4 = 111;
  a3.a1.a0.a5.a0.a0 = 112.0;
  a3.a1.a0.a5.a1.a0 = -113.0;
  a3.a1.a0.a6 = 114;
  a3.a1.a1.a0.a0 = -115;
  a3.a1.a1.a0.a1 = 116;
  a3.a1.a1.a1.a0 = -117.0;
  a3.a1.a2 = 118.0;
  a3.a1.a3 = -119.0;
  a3.a2.a0.a0 = 120;
  a3.a2.a0.a1.a0.a0 = -121;
  a3.a2.a0.a1.a0.a1 = 122;
  a3.a2.a0.a1.a1.a0 = -123.0;
  a3.a2.a0.a2 = 124;
  a3.a2.a0.a3.a0.a0 = -125.0;
  a3.a2.a0.a3.a1 = 126.0;
  a3.a2.a0.a4 = 127;
  a3.a2.a0.a5.a0.a0 = 128.0;
  a3.a2.a0.a5.a1.a0 = -129.0;
  a3.a2.a0.a6 = 130;
  a3.a2.a1.a0.a0 = -131;
  a3.a2.a1.a0.a1 = 132;
  a3.a2.a1.a1.a0 = -133.0;
  a3.a2.a2 = 134.0;
  a3.a2.a3 = -135.0;
  a3.a3 = 136.0;

  final result = passStructNestedIrregularEvenBiggerx4Leaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.approxEquals(1572.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
}

final passStruct8BytesInlineArrayIntx4Leaf = ffiTestFunctions.lookupFunction<
        Int32 Function(Struct8BytesInlineArrayInt, Struct8BytesInlineArrayInt,
            Struct8BytesInlineArrayInt, Struct8BytesInlineArrayInt),
        int Function(
            Struct8BytesInlineArrayInt,
            Struct8BytesInlineArrayInt,
            Struct8BytesInlineArrayInt,
            Struct8BytesInlineArrayInt)>("PassStruct8BytesInlineArrayIntx4",
    isLeaf: true);

/// Simple struct with inline array.
void testPassStruct8BytesInlineArrayIntx4Leaf() {
  final a0Pointer = calloc<Struct8BytesInlineArrayInt>();
  final Struct8BytesInlineArrayInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesInlineArrayInt>();
  final Struct8BytesInlineArrayInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesInlineArrayInt>();
  final Struct8BytesInlineArrayInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesInlineArrayInt>();
  final Struct8BytesInlineArrayInt a3 = a3Pointer.ref;

  a0.a0[0] = 1;
  a0.a0[1] = 2;
  a0.a0[2] = 3;
  a0.a0[3] = 4;
  a0.a0[4] = 5;
  a0.a0[5] = 6;
  a0.a0[6] = 7;
  a0.a0[7] = 8;
  a1.a0[0] = 9;
  a1.a0[1] = 10;
  a1.a0[2] = 11;
  a1.a0[3] = 12;
  a1.a0[4] = 13;
  a1.a0[5] = 14;
  a1.a0[6] = 15;
  a1.a0[7] = 16;
  a2.a0[0] = 17;
  a2.a0[1] = 18;
  a2.a0[2] = 19;
  a2.a0[3] = 20;
  a2.a0[4] = 21;
  a2.a0[5] = 22;
  a2.a0[6] = 23;
  a2.a0[7] = 24;
  a3.a0[0] = 25;
  a3.a0[1] = 26;
  a3.a0[2] = 27;
  a3.a0[3] = 28;
  a3.a0[4] = 29;
  a3.a0[5] = 30;
  a3.a0[6] = 31;
  a3.a0[7] = 32;

  final result = passStruct8BytesInlineArrayIntx4Leaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.equals(528, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
}

final passStructInlineArrayIrregularx4Leaf = ffiTestFunctions.lookupFunction<
        Int32 Function(StructInlineArrayIrregular, StructInlineArrayIrregular,
            StructInlineArrayIrregular, StructInlineArrayIrregular),
        int Function(
            StructInlineArrayIrregular,
            StructInlineArrayIrregular,
            StructInlineArrayIrregular,
            StructInlineArrayIrregular)>("PassStructInlineArrayIrregularx4",
    isLeaf: true);

/// Irregular struct with inline array.
void testPassStructInlineArrayIrregularx4Leaf() {
  final a0Pointer = calloc<StructInlineArrayIrregular>();
  final StructInlineArrayIrregular a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructInlineArrayIrregular>();
  final StructInlineArrayIrregular a1 = a1Pointer.ref;
  final a2Pointer = calloc<StructInlineArrayIrregular>();
  final StructInlineArrayIrregular a2 = a2Pointer.ref;
  final a3Pointer = calloc<StructInlineArrayIrregular>();
  final StructInlineArrayIrregular a3 = a3Pointer.ref;

  a0.a0[0].a0 = -1;
  a0.a0[0].a1 = 2;
  a0.a0[1].a0 = -3;
  a0.a0[1].a1 = 4;
  a0.a1 = 5;
  a1.a0[0].a0 = 6;
  a1.a0[0].a1 = -7;
  a1.a0[1].a0 = 8;
  a1.a0[1].a1 = -9;
  a1.a1 = 10;
  a2.a0[0].a0 = -11;
  a2.a0[0].a1 = 12;
  a2.a0[1].a0 = -13;
  a2.a0[1].a1 = 14;
  a2.a1 = 15;
  a3.a0[0].a0 = 16;
  a3.a0[0].a1 = -17;
  a3.a0[1].a0 = 18;
  a3.a0[1].a1 = -19;
  a3.a1 = 20;

  final result = passStructInlineArrayIrregularx4Leaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.equals(50, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
}

final passStructInlineArray100BytesLeaf = ffiTestFunctions.lookupFunction<
        Int32 Function(StructInlineArray100Bytes),
        int Function(StructInlineArray100Bytes)>(
    "PassStructInlineArray100Bytes",
    isLeaf: true);

/// Regular larger struct with inline array.
void testPassStructInlineArray100BytesLeaf() {
  final a0Pointer = calloc<StructInlineArray100Bytes>();
  final StructInlineArray100Bytes a0 = a0Pointer.ref;

  a0.a0[0] = 1;
  a0.a0[1] = 2;
  a0.a0[2] = 3;
  a0.a0[3] = 4;
  a0.a0[4] = 5;
  a0.a0[5] = 6;
  a0.a0[6] = 7;
  a0.a0[7] = 8;
  a0.a0[8] = 9;
  a0.a0[9] = 10;
  a0.a0[10] = 11;
  a0.a0[11] = 12;
  a0.a0[12] = 13;
  a0.a0[13] = 14;
  a0.a0[14] = 15;
  a0.a0[15] = 16;
  a0.a0[16] = 17;
  a0.a0[17] = 18;
  a0.a0[18] = 19;
  a0.a0[19] = 20;
  a0.a0[20] = 21;
  a0.a0[21] = 22;
  a0.a0[22] = 23;
  a0.a0[23] = 24;
  a0.a0[24] = 25;
  a0.a0[25] = 26;
  a0.a0[26] = 27;
  a0.a0[27] = 28;
  a0.a0[28] = 29;
  a0.a0[29] = 30;
  a0.a0[30] = 31;
  a0.a0[31] = 32;
  a0.a0[32] = 33;
  a0.a0[33] = 34;
  a0.a0[34] = 35;
  a0.a0[35] = 36;
  a0.a0[36] = 37;
  a0.a0[37] = 38;
  a0.a0[38] = 39;
  a0.a0[39] = 40;
  a0.a0[40] = 41;
  a0.a0[41] = 42;
  a0.a0[42] = 43;
  a0.a0[43] = 44;
  a0.a0[44] = 45;
  a0.a0[45] = 46;
  a0.a0[46] = 47;
  a0.a0[47] = 48;
  a0.a0[48] = 49;
  a0.a0[49] = 50;
  a0.a0[50] = 51;
  a0.a0[51] = 52;
  a0.a0[52] = 53;
  a0.a0[53] = 54;
  a0.a0[54] = 55;
  a0.a0[55] = 56;
  a0.a0[56] = 57;
  a0.a0[57] = 58;
  a0.a0[58] = 59;
  a0.a0[59] = 60;
  a0.a0[60] = 61;
  a0.a0[61] = 62;
  a0.a0[62] = 63;
  a0.a0[63] = 64;
  a0.a0[64] = 65;
  a0.a0[65] = 66;
  a0.a0[66] = 67;
  a0.a0[67] = 68;
  a0.a0[68] = 69;
  a0.a0[69] = 70;
  a0.a0[70] = 71;
  a0.a0[71] = 72;
  a0.a0[72] = 73;
  a0.a0[73] = 74;
  a0.a0[74] = 75;
  a0.a0[75] = 76;
  a0.a0[76] = 77;
  a0.a0[77] = 78;
  a0.a0[78] = 79;
  a0.a0[79] = 80;
  a0.a0[80] = 81;
  a0.a0[81] = 82;
  a0.a0[82] = 83;
  a0.a0[83] = 84;
  a0.a0[84] = 85;
  a0.a0[85] = 86;
  a0.a0[86] = 87;
  a0.a0[87] = 88;
  a0.a0[88] = 89;
  a0.a0[89] = 90;
  a0.a0[90] = 91;
  a0.a0[91] = 92;
  a0.a0[92] = 93;
  a0.a0[93] = 94;
  a0.a0[94] = 95;
  a0.a0[95] = 96;
  a0.a0[96] = 97;
  a0.a0[97] = 98;
  a0.a0[98] = 99;
  a0.a0[99] = 100;

  final result = passStructInlineArray100BytesLeaf(a0);

  print("result = $result");

  Expect.equals(5050, result);

  calloc.free(a0Pointer);
}

final passStructStruct16BytesHomogeneousFloat2x5Leaf =
    ffiTestFunctions.lookupFunction<
            Float Function(
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2),
            double Function(
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2,
                StructStruct16BytesHomogeneousFloat2)>(
        "PassStructStruct16BytesHomogeneousFloat2x5",
        isLeaf: true);

/// Arguments in FPU registers on arm hardfp and arm64.
/// 5 struct arguments will exhaust available registers.
void testPassStructStruct16BytesHomogeneousFloat2x5Leaf() {
  final a0Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
  final StructStruct16BytesHomogeneousFloat2 a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
  final StructStruct16BytesHomogeneousFloat2 a1 = a1Pointer.ref;
  final a2Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
  final StructStruct16BytesHomogeneousFloat2 a2 = a2Pointer.ref;
  final a3Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
  final StructStruct16BytesHomogeneousFloat2 a3 = a3Pointer.ref;
  final a4Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
  final StructStruct16BytesHomogeneousFloat2 a4 = a4Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1[0].a0 = 2.0;
  a0.a1[1].a0 = -3.0;
  a0.a2 = 4.0;
  a1.a0.a0 = -5.0;
  a1.a1[0].a0 = 6.0;
  a1.a1[1].a0 = -7.0;
  a1.a2 = 8.0;
  a2.a0.a0 = -9.0;
  a2.a1[0].a0 = 10.0;
  a2.a1[1].a0 = -11.0;
  a2.a2 = 12.0;
  a3.a0.a0 = -13.0;
  a3.a1[0].a0 = 14.0;
  a3.a1[1].a0 = -15.0;
  a3.a2 = 16.0;
  a4.a0.a0 = -17.0;
  a4.a1[0].a0 = 18.0;
  a4.a1[1].a0 = -19.0;
  a4.a2 = 20.0;

  final result =
      passStructStruct16BytesHomogeneousFloat2x5Leaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
}

final passStructStruct32BytesHomogeneousDouble2x5Leaf =
    ffiTestFunctions.lookupFunction<
            Double Function(
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2),
            double Function(
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2,
                StructStruct32BytesHomogeneousDouble2)>(
        "PassStructStruct32BytesHomogeneousDouble2x5",
        isLeaf: true);

/// Arguments in FPU registers on arm64.
/// 5 struct arguments will exhaust available registers.
void testPassStructStruct32BytesHomogeneousDouble2x5Leaf() {
  final a0Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
  final StructStruct32BytesHomogeneousDouble2 a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
  final StructStruct32BytesHomogeneousDouble2 a1 = a1Pointer.ref;
  final a2Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
  final StructStruct32BytesHomogeneousDouble2 a2 = a2Pointer.ref;
  final a3Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
  final StructStruct32BytesHomogeneousDouble2 a3 = a3Pointer.ref;
  final a4Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
  final StructStruct32BytesHomogeneousDouble2 a4 = a4Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1[0].a0 = 2.0;
  a0.a1[1].a0 = -3.0;
  a0.a2 = 4.0;
  a1.a0.a0 = -5.0;
  a1.a1[0].a0 = 6.0;
  a1.a1[1].a0 = -7.0;
  a1.a2 = 8.0;
  a2.a0.a0 = -9.0;
  a2.a1[0].a0 = 10.0;
  a2.a1[1].a0 = -11.0;
  a2.a2 = 12.0;
  a3.a0.a0 = -13.0;
  a3.a1[0].a0 = 14.0;
  a3.a1[1].a0 = -15.0;
  a3.a2 = 16.0;
  a4.a0.a0 = -17.0;
  a4.a1[0].a0 = 18.0;
  a4.a1[1].a0 = -19.0;
  a4.a2 = 20.0;

  final result =
      passStructStruct32BytesHomogeneousDouble2x5Leaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
}

final passStructStruct16BytesMixed3x10Leaf = ffiTestFunctions.lookupFunction<
        Float Function(
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3),
        double Function(
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3,
            StructStruct16BytesMixed3)>("PassStructStruct16BytesMixed3x10",
    isLeaf: true);

/// On x64, arguments are split over FP and int registers.
/// On x64, it will exhaust the integer registers with the 6th argument.
/// The rest goes on the stack.
/// On arm, arguments are 4 byte aligned.
void testPassStructStruct16BytesMixed3x10Leaf() {
  final a0Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a1 = a1Pointer.ref;
  final a2Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a2 = a2Pointer.ref;
  final a3Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a3 = a3Pointer.ref;
  final a4Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a4 = a4Pointer.ref;
  final a5Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a5 = a5Pointer.ref;
  final a6Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a6 = a6Pointer.ref;
  final a7Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a7 = a7Pointer.ref;
  final a8Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a8 = a8Pointer.ref;
  final a9Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a9 = a9Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1[0].a0 = 2.0;
  a0.a1[0].a1 = -3;
  a0.a1[0].a2 = 4;
  a0.a2[0] = -5;
  a0.a2[1] = 6;
  a1.a0.a0 = -7.0;
  a1.a1[0].a0 = 8.0;
  a1.a1[0].a1 = -9;
  a1.a1[0].a2 = 10;
  a1.a2[0] = -11;
  a1.a2[1] = 12;
  a2.a0.a0 = -13.0;
  a2.a1[0].a0 = 14.0;
  a2.a1[0].a1 = -15;
  a2.a1[0].a2 = 16;
  a2.a2[0] = -17;
  a2.a2[1] = 18;
  a3.a0.a0 = -19.0;
  a3.a1[0].a0 = 20.0;
  a3.a1[0].a1 = -21;
  a3.a1[0].a2 = 22;
  a3.a2[0] = -23;
  a3.a2[1] = 24;
  a4.a0.a0 = -25.0;
  a4.a1[0].a0 = 26.0;
  a4.a1[0].a1 = -27;
  a4.a1[0].a2 = 28;
  a4.a2[0] = -29;
  a4.a2[1] = 30;
  a5.a0.a0 = -31.0;
  a5.a1[0].a0 = 32.0;
  a5.a1[0].a1 = -33;
  a5.a1[0].a2 = 34;
  a5.a2[0] = -35;
  a5.a2[1] = 36;
  a6.a0.a0 = -37.0;
  a6.a1[0].a0 = 38.0;
  a6.a1[0].a1 = -39;
  a6.a1[0].a2 = 40;
  a6.a2[0] = -41;
  a6.a2[1] = 42;
  a7.a0.a0 = -43.0;
  a7.a1[0].a0 = 44.0;
  a7.a1[0].a1 = -45;
  a7.a1[0].a2 = 46;
  a7.a2[0] = -47;
  a7.a2[1] = 48;
  a8.a0.a0 = -49.0;
  a8.a1[0].a0 = 50.0;
  a8.a1[0].a1 = -51;
  a8.a1[0].a2 = 52;
  a8.a2[0] = -53;
  a8.a2[1] = 54;
  a9.a0.a0 = -55.0;
  a9.a1[0].a0 = 56.0;
  a9.a1[0].a1 = -57;
  a9.a1[0].a2 = 58;
  a9.a2[0] = -59;
  a9.a2[1] = 60;

  final result = passStructStruct16BytesMixed3x10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(30.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passUint8Struct32BytesInlineArrayMultiDimensionalILeaf =
    ffiTestFunctions.lookupFunction<
            Uint32 Function(
                Uint8,
                Struct32BytesInlineArrayMultiDimensionalInt,
                Uint8,
                Struct8BytesInlineArrayMultiDimensionalInt,
                Uint8,
                Struct8BytesInlineArrayMultiDimensionalInt,
                Uint8),
            int Function(
                int,
                Struct32BytesInlineArrayMultiDimensionalInt,
                int,
                Struct8BytesInlineArrayMultiDimensionalInt,
                int,
                Struct8BytesInlineArrayMultiDimensionalInt,
                int)>("PassUint8Struct32BytesInlineArrayMultiDimensionalI",
        isLeaf: true);

/// Test multi dimensional inline array struct as argument.
void testPassUint8Struct32BytesInlineArrayMultiDimensionalILeaf() {
  int a0;
  final a1Pointer = calloc<Struct32BytesInlineArrayMultiDimensionalInt>();
  final Struct32BytesInlineArrayMultiDimensionalInt a1 = a1Pointer.ref;
  int a2;
  final a3Pointer = calloc<Struct8BytesInlineArrayMultiDimensionalInt>();
  final Struct8BytesInlineArrayMultiDimensionalInt a3 = a3Pointer.ref;
  int a4;
  final a5Pointer = calloc<Struct8BytesInlineArrayMultiDimensionalInt>();
  final Struct8BytesInlineArrayMultiDimensionalInt a5 = a5Pointer.ref;
  int a6;

  a0 = 1;
  a1.a0[0][0][0][0][0] = 2;
  a1.a0[0][0][0][0][1] = 3;
  a1.a0[0][0][0][1][0] = 4;
  a1.a0[0][0][0][1][1] = 5;
  a1.a0[0][0][1][0][0] = 6;
  a1.a0[0][0][1][0][1] = 7;
  a1.a0[0][0][1][1][0] = 8;
  a1.a0[0][0][1][1][1] = 9;
  a1.a0[0][1][0][0][0] = 10;
  a1.a0[0][1][0][0][1] = 11;
  a1.a0[0][1][0][1][0] = 12;
  a1.a0[0][1][0][1][1] = 13;
  a1.a0[0][1][1][0][0] = 14;
  a1.a0[0][1][1][0][1] = 15;
  a1.a0[0][1][1][1][0] = 16;
  a1.a0[0][1][1][1][1] = 17;
  a1.a0[1][0][0][0][0] = 18;
  a1.a0[1][0][0][0][1] = 19;
  a1.a0[1][0][0][1][0] = 20;
  a1.a0[1][0][0][1][1] = 21;
  a1.a0[1][0][1][0][0] = 22;
  a1.a0[1][0][1][0][1] = 23;
  a1.a0[1][0][1][1][0] = 24;
  a1.a0[1][0][1][1][1] = 25;
  a1.a0[1][1][0][0][0] = 26;
  a1.a0[1][1][0][0][1] = 27;
  a1.a0[1][1][0][1][0] = 28;
  a1.a0[1][1][0][1][1] = 29;
  a1.a0[1][1][1][0][0] = 30;
  a1.a0[1][1][1][0][1] = 31;
  a1.a0[1][1][1][1][0] = 32;
  a1.a0[1][1][1][1][1] = 33;
  a2 = 34;
  a3.a0[0][0][0] = 35;
  a3.a0[0][0][1] = 36;
  a3.a0[0][1][0] = 37;
  a3.a0[0][1][1] = 38;
  a3.a0[1][0][0] = 39;
  a3.a0[1][0][1] = 40;
  a3.a0[1][1][0] = 41;
  a3.a0[1][1][1] = 42;
  a4 = 43;
  a5.a0[0][0][0] = 44;
  a5.a0[0][0][1] = 45;
  a5.a0[0][1][0] = 46;
  a5.a0[0][1][1] = 47;
  a5.a0[1][0][0] = 48;
  a5.a0[1][0][1] = 49;
  a5.a0[1][1][0] = 50;
  a5.a0[1][1][1] = 51;
  a6 = 52;

  final result = passUint8Struct32BytesInlineArrayMultiDimensionalILeaf(
      a0, a1, a2, a3, a4, a5, a6);

  print("result = $result");

  Expect.equals(1378, result);

  calloc.free(a1Pointer);
  calloc.free(a3Pointer);
  calloc.free(a5Pointer);
}

final passUint8Struct4BytesInlineArrayMultiDimensionalInLeaf =
    ffiTestFunctions.lookupFunction<
            Uint32 Function(
                Uint8, Struct4BytesInlineArrayMultiDimensionalInt, Uint8),
            int Function(int, Struct4BytesInlineArrayMultiDimensionalInt, int)>(
        "PassUint8Struct4BytesInlineArrayMultiDimensionalIn",
        isLeaf: true);

/// Test struct in multi dimensional inline array.
void testPassUint8Struct4BytesInlineArrayMultiDimensionalInLeaf() {
  int a0;
  final a1Pointer = calloc<Struct4BytesInlineArrayMultiDimensionalInt>();
  final Struct4BytesInlineArrayMultiDimensionalInt a1 = a1Pointer.ref;
  int a2;

  a0 = 1;
  a1.a0[0][0].a0 = 2;
  a1.a0[0][1].a0 = -3;
  a1.a0[1][0].a0 = 4;
  a1.a0[1][1].a0 = -5;
  a2 = 6;

  final result =
      passUint8Struct4BytesInlineArrayMultiDimensionalInLeaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(5, result);

  calloc.free(a1Pointer);
}

final passStruct3BytesPackedIntx10Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt),
    int Function(
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt,
        Struct3BytesPackedInt)>("PassStruct3BytesPackedIntx10", isLeaf: true);

/// Small struct with mis-aligned member.
void testPassStruct3BytesPackedIntx10Leaf() {
  final a0Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct3BytesPackedInt>();
  final Struct3BytesPackedInt a9 = a9Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a1.a0 = -3;
  a1.a1 = 4;
  a2.a0 = -5;
  a2.a1 = 6;
  a3.a0 = -7;
  a3.a1 = 8;
  a4.a0 = -9;
  a4.a1 = 10;
  a5.a0 = -11;
  a5.a1 = 12;
  a6.a0 = -13;
  a6.a1 = 14;
  a7.a0 = -15;
  a7.a1 = 16;
  a8.a0 = -17;
  a8.a1 = 18;
  a9.a0 = -19;
  a9.a1 = 20;

  final result =
      passStruct3BytesPackedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(10, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct8BytesPackedIntx10Leaf = ffiTestFunctions.lookupFunction<
    Int64 Function(
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt),
    int Function(
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt,
        Struct8BytesPackedInt)>("PassStruct8BytesPackedIntx10", isLeaf: true);

/// Struct with mis-aligned member.
void testPassStruct8BytesPackedIntx10Leaf() {
  final a0Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct8BytesPackedInt>();
  final Struct8BytesPackedInt a9 = a9Pointer.ref;

  a0.a0 = 1;
  a0.a1 = 2;
  a0.a2 = 3;
  a0.a3 = 4;
  a0.a4 = 5;
  a1.a0 = 6;
  a1.a1 = 7;
  a1.a2 = 8;
  a1.a3 = 9;
  a1.a4 = 10;
  a2.a0 = 11;
  a2.a1 = 12;
  a2.a2 = 13;
  a2.a3 = 14;
  a2.a4 = 15;
  a3.a0 = 16;
  a3.a1 = 17;
  a3.a2 = 18;
  a3.a3 = 19;
  a3.a4 = 20;
  a4.a0 = 21;
  a4.a1 = 22;
  a4.a2 = 23;
  a4.a3 = 24;
  a4.a4 = 25;
  a5.a0 = 26;
  a5.a1 = 27;
  a5.a2 = 28;
  a5.a3 = 29;
  a5.a4 = 30;
  a6.a0 = 31;
  a6.a1 = 32;
  a6.a2 = 33;
  a6.a3 = 34;
  a6.a4 = 35;
  a7.a0 = 36;
  a7.a1 = 37;
  a7.a2 = 38;
  a7.a3 = 39;
  a7.a4 = 40;
  a8.a0 = 41;
  a8.a1 = 42;
  a8.a2 = 43;
  a8.a3 = 44;
  a8.a4 = 45;
  a9.a0 = 46;
  a9.a1 = 47;
  a9.a2 = 48;
  a9.a3 = 49;
  a9.a4 = 50;

  final result =
      passStruct8BytesPackedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.equals(1275, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct9BytesPackedMixedx10DoubleInt32x2Leaf =
    ffiTestFunctions.lookupFunction<
        Double Function(
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Double,
            Int32,
            Int32),
        double Function(
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            Struct9BytesPackedMixed,
            double,
            int,
            int)>("PassStruct9BytesPackedMixedx10DoubleInt32x2", isLeaf: true);

/// Struct with mis-aligned member.
/// Tests backfilling of CPU and FPU registers.
void testPassStruct9BytesPackedMixedx10DoubleInt32x2Leaf() {
  final a0Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a1 = a1Pointer.ref;
  final a2Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a2 = a2Pointer.ref;
  final a3Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a3 = a3Pointer.ref;
  final a4Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a4 = a4Pointer.ref;
  final a5Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a5 = a5Pointer.ref;
  final a6Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a7 = a7Pointer.ref;
  final a8Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a8 = a8Pointer.ref;
  final a9Pointer = calloc<Struct9BytesPackedMixed>();
  final Struct9BytesPackedMixed a9 = a9Pointer.ref;
  double a10;
  int a11;
  int a12;

  a0.a0 = 1;
  a0.a1 = 2.0;
  a1.a0 = 3;
  a1.a1 = 4.0;
  a2.a0 = 5;
  a2.a1 = 6.0;
  a3.a0 = 7;
  a3.a1 = 8.0;
  a4.a0 = 9;
  a4.a1 = 10.0;
  a5.a0 = 11;
  a5.a1 = 12.0;
  a6.a0 = 13;
  a6.a1 = 14.0;
  a7.a0 = 15;
  a7.a1 = 16.0;
  a8.a0 = 17;
  a8.a1 = 18.0;
  a9.a0 = 19;
  a9.a1 = 20.0;
  a10 = -21.0;
  a11 = 22;
  a12 = -23;

  final result = passStruct9BytesPackedMixedx10DoubleInt32x2Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);

  print("result = $result");

  Expect.approxEquals(188.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passStruct5BytesPackedMixedLeaf = ffiTestFunctions.lookupFunction<
    Double Function(Struct5BytesPackedMixed),
    double Function(
        Struct5BytesPackedMixed)>("PassStruct5BytesPackedMixed", isLeaf: true);

/// This packed struct happens to have only aligned members.
void testPassStruct5BytesPackedMixedLeaf() {
  final a0Pointer = calloc<Struct5BytesPackedMixed>();
  final Struct5BytesPackedMixed a0 = a0Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2;

  final result = passStruct5BytesPackedMixedLeaf(a0);

  print("result = $result");

  Expect.approxEquals(1.0, result);

  calloc.free(a0Pointer);
}

final passStructNestedAlignmentStruct5BytesPackedMixedLeaf =
    ffiTestFunctions.lookupFunction<
            Double Function(StructNestedAlignmentStruct5BytesPackedMixed),
            double Function(StructNestedAlignmentStruct5BytesPackedMixed)>(
        "PassStructNestedAlignmentStruct5BytesPackedMixed",
        isLeaf: true);

/// Check alignment of packed struct in non-packed struct.
void testPassStructNestedAlignmentStruct5BytesPackedMixedLeaf() {
  final a0Pointer = calloc<StructNestedAlignmentStruct5BytesPackedMixed>();
  final StructNestedAlignmentStruct5BytesPackedMixed a0 = a0Pointer.ref;

  a0.a0 = 1;
  a0.a1.a0 = 2.0;
  a0.a1.a1 = 3;

  final result = passStructNestedAlignmentStruct5BytesPackedMixedLeaf(a0);

  print("result = $result");

  Expect.approxEquals(6.0, result);

  calloc.free(a0Pointer);
}

final passStruct6BytesInlineArrayIntLeaf = ffiTestFunctions.lookupFunction<
        Double Function(Struct6BytesInlineArrayInt),
        double Function(Struct6BytesInlineArrayInt)>(
    "PassStruct6BytesInlineArrayInt",
    isLeaf: true);

/// Check alignment of packed struct array in non-packed struct.
void testPassStruct6BytesInlineArrayIntLeaf() {
  final a0Pointer = calloc<Struct6BytesInlineArrayInt>();
  final Struct6BytesInlineArrayInt a0 = a0Pointer.ref;

  a0.a0[0].a0 = -1;
  a0.a0[0].a1 = 2;
  a0.a0[1].a0 = -3;
  a0.a0[1].a1 = 4;

  final result = passStruct6BytesInlineArrayIntLeaf(a0);

  print("result = $result");

  Expect.approxEquals(2.0, result);

  calloc.free(a0Pointer);
}

final passStruct15BytesInlineArrayMixedLeaf = ffiTestFunctions.lookupFunction<
        Double Function(Struct15BytesInlineArrayMixed),
        double Function(Struct15BytesInlineArrayMixed)>(
    "PassStruct15BytesInlineArrayMixed",
    isLeaf: true);

/// Check alignment of packed struct array in non-packed struct.
void testPassStruct15BytesInlineArrayMixedLeaf() {
  final a0Pointer = calloc<Struct15BytesInlineArrayMixed>();
  final Struct15BytesInlineArrayMixed a0 = a0Pointer.ref;

  a0.a0[0].a0 = -1.0;
  a0.a0[0].a1 = 2;
  a0.a0[1].a0 = -3.0;
  a0.a0[1].a1 = 4;
  a0.a0[2].a0 = -5.0;
  a0.a0[2].a1 = 6;

  final result = passStruct15BytesInlineArrayMixedLeaf(a0);

  print("result = $result");

  Expect.approxEquals(3.0, result);

  calloc.free(a0Pointer);
}

final passUnion4BytesMixedx10Leaf = ffiTestFunctions.lookupFunction<
    Double Function(
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed),
    double Function(
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed,
        Union4BytesMixed)>("PassUnion4BytesMixedx10", isLeaf: true);

/// Check placement of mixed integer/float union.
void testPassUnion4BytesMixedx10Leaf() {
  final a0Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a0 = a0Pointer.ref;
  final a1Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a1 = a1Pointer.ref;
  final a2Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a2 = a2Pointer.ref;
  final a3Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a3 = a3Pointer.ref;
  final a4Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a4 = a4Pointer.ref;
  final a5Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a5 = a5Pointer.ref;
  final a6Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a6 = a6Pointer.ref;
  final a7Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a7 = a7Pointer.ref;
  final a8Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a8 = a8Pointer.ref;
  final a9Pointer = calloc<Union4BytesMixed>();
  final Union4BytesMixed a9 = a9Pointer.ref;

  a0.a0 = 1;
  a1.a0 = 2;
  a2.a0 = 3;
  a3.a0 = 4;
  a4.a0 = 5;
  a5.a0 = 6;
  a6.a0 = 7;
  a7.a0 = 8;
  a8.a0 = 9;
  a9.a0 = 10;

  final result =
      passUnion4BytesMixedx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(55.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passUnion8BytesNestedFloatx10Leaf = ffiTestFunctions.lookupFunction<
    Double Function(
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat),
    double Function(
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat,
        Union8BytesNestedFloat)>("PassUnion8BytesNestedFloatx10", isLeaf: true);

/// Check placement of mixed floats union.
void testPassUnion8BytesNestedFloatx10Leaf() {
  final a0Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a4 = a4Pointer.ref;
  final a5Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a5 = a5Pointer.ref;
  final a6Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a6 = a6Pointer.ref;
  final a7Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a7 = a7Pointer.ref;
  final a8Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a8 = a8Pointer.ref;
  final a9Pointer = calloc<Union8BytesNestedFloat>();
  final Union8BytesNestedFloat a9 = a9Pointer.ref;

  a0.a0 = -1.0;
  a1.a0 = 2.0;
  a2.a0 = -3.0;
  a3.a0 = 4.0;
  a4.a0 = -5.0;
  a5.a0 = 6.0;
  a6.a0 = -7.0;
  a7.a0 = 8.0;
  a8.a0 = -9.0;
  a9.a0 = 10.0;

  final result =
      passUnion8BytesNestedFloatx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(5.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passUnion9BytesNestedIntx10Leaf = ffiTestFunctions.lookupFunction<
    Double Function(
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt),
    double Function(
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt,
        Union9BytesNestedInt)>("PassUnion9BytesNestedIntx10", isLeaf: true);

/// Mixed-size union argument.
void testPassUnion9BytesNestedIntx10Leaf() {
  final a0Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a1 = a1Pointer.ref;
  final a2Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a2 = a2Pointer.ref;
  final a3Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a3 = a3Pointer.ref;
  final a4Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a4 = a4Pointer.ref;
  final a5Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a5 = a5Pointer.ref;
  final a6Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a6 = a6Pointer.ref;
  final a7Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a7 = a7Pointer.ref;
  final a8Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a8 = a8Pointer.ref;
  final a9Pointer = calloc<Union9BytesNestedInt>();
  final Union9BytesNestedInt a9 = a9Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a0.a2 = -3;
  a1.a0.a0 = 4;
  a1.a0.a1 = -5;
  a1.a0.a2 = 6;
  a2.a0.a0 = -7;
  a2.a0.a1 = 8;
  a2.a0.a2 = -9;
  a3.a0.a0 = 10;
  a3.a0.a1 = -11;
  a3.a0.a2 = 12;
  a4.a0.a0 = -13;
  a4.a0.a1 = 14;
  a4.a0.a2 = -15;
  a5.a0.a0 = 16;
  a5.a0.a1 = -17;
  a5.a0.a2 = 18;
  a6.a0.a0 = -19;
  a6.a0.a1 = 20;
  a6.a0.a2 = -21;
  a7.a0.a0 = 22;
  a7.a0.a1 = -23;
  a7.a0.a2 = 24;
  a8.a0.a0 = -25;
  a8.a0.a1 = 26;
  a8.a0.a2 = -27;
  a9.a0.a0 = 28;
  a9.a0.a1 = -29;
  a9.a0.a2 = 30;

  final result =
      passUnion9BytesNestedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(15.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passUnion16BytesNestedInlineArrayFloatx10Leaf =
    ffiTestFunctions.lookupFunction<
            Double Function(
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat),
            double Function(
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat,
                Union16BytesNestedInlineArrayFloat)>(
        "PassUnion16BytesNestedInlineArrayFloatx10",
        isLeaf: true);

/// Union with homogenous floats.
void testPassUnion16BytesNestedInlineArrayFloatx10Leaf() {
  final a0Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a4 = a4Pointer.ref;
  final a5Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a5 = a5Pointer.ref;
  final a6Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a6 = a6Pointer.ref;
  final a7Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a7 = a7Pointer.ref;
  final a8Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a8 = a8Pointer.ref;
  final a9Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
  final Union16BytesNestedInlineArrayFloat a9 = a9Pointer.ref;

  a0.a0[0] = -1.0;
  a0.a0[1] = 2.0;
  a0.a0[2] = -3.0;
  a0.a0[3] = 4.0;
  a1.a0[0] = -5.0;
  a1.a0[1] = 6.0;
  a1.a0[2] = -7.0;
  a1.a0[3] = 8.0;
  a2.a0[0] = -9.0;
  a2.a0[1] = 10.0;
  a2.a0[2] = -11.0;
  a2.a0[3] = 12.0;
  a3.a0[0] = -13.0;
  a3.a0[1] = 14.0;
  a3.a0[2] = -15.0;
  a3.a0[3] = 16.0;
  a4.a0[0] = -17.0;
  a4.a0[1] = 18.0;
  a4.a0[2] = -19.0;
  a4.a0[3] = 20.0;
  a5.a0[0] = -21.0;
  a5.a0[1] = 22.0;
  a5.a0[2] = -23.0;
  a5.a0[3] = 24.0;
  a6.a0[0] = -25.0;
  a6.a0[1] = 26.0;
  a6.a0[2] = -27.0;
  a6.a0[3] = 28.0;
  a7.a0[0] = -29.0;
  a7.a0[1] = 30.0;
  a7.a0[2] = -31.0;
  a7.a0[3] = 32.0;
  a8.a0[0] = -33.0;
  a8.a0[1] = 34.0;
  a8.a0[2] = -35.0;
  a8.a0[3] = 36.0;
  a9.a0[0] = -37.0;
  a9.a0[1] = 38.0;
  a9.a0[2] = -39.0;
  a9.a0[3] = 40.0;

  final result = passUnion16BytesNestedInlineArrayFloatx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(20.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passUnion16BytesNestedFloatx10Leaf = ffiTestFunctions.lookupFunction<
        Double Function(
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat),
        double Function(
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat,
            Union16BytesNestedFloat)>("PassUnion16BytesNestedFloatx10",
    isLeaf: true);

/// Union with homogenous floats.
void testPassUnion16BytesNestedFloatx10Leaf() {
  final a0Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a1 = a1Pointer.ref;
  final a2Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a2 = a2Pointer.ref;
  final a3Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a3 = a3Pointer.ref;
  final a4Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a4 = a4Pointer.ref;
  final a5Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a5 = a5Pointer.ref;
  final a6Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a6 = a6Pointer.ref;
  final a7Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a7 = a7Pointer.ref;
  final a8Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a8 = a8Pointer.ref;
  final a9Pointer = calloc<Union16BytesNestedFloat>();
  final Union16BytesNestedFloat a9 = a9Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a0.a1 = 2.0;
  a1.a0.a0 = -3.0;
  a1.a0.a1 = 4.0;
  a2.a0.a0 = -5.0;
  a2.a0.a1 = 6.0;
  a3.a0.a0 = -7.0;
  a3.a0.a1 = 8.0;
  a4.a0.a0 = -9.0;
  a4.a0.a1 = 10.0;
  a5.a0.a0 = -11.0;
  a5.a0.a1 = 12.0;
  a6.a0.a0 = -13.0;
  a6.a0.a1 = 14.0;
  a7.a0.a0 = -15.0;
  a7.a0.a1 = 16.0;
  a8.a0.a0 = -17.0;
  a8.a0.a1 = 18.0;
  a9.a0.a0 = -19.0;
  a9.a0.a1 = 20.0;

  final result = passUnion16BytesNestedFloatx10Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);

  print("result = $result");

  Expect.approxEquals(10.0, result);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
  calloc.free(a3Pointer);
  calloc.free(a4Pointer);
  calloc.free(a5Pointer);
  calloc.free(a6Pointer);
  calloc.free(a7Pointer);
  calloc.free(a8Pointer);
  calloc.free(a9Pointer);
}

final passUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf =
    ffiTestFunctions
        .lookupFunction<
                Int32 Function(Uint8, Bool, Bool, Bool, Bool, Bool, Bool, Bool,
                    Bool, Bool, Struct10BytesHomogeneousBool, Bool),
                int Function(
                    int,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    Struct10BytesHomogeneousBool,
                    bool)>("PassUint8Boolx9Struct10BytesHomogeneousBoolBool",
            isLeaf: true);

/// Passing bools and a struct with bools.
/// Exhausts the registers to test bools and the bool struct alignment on the
/// stack.
void testPassUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf() {
  int a0;
  bool a1;
  bool a2;
  bool a3;
  bool a4;
  bool a5;
  bool a6;
  bool a7;
  bool a8;
  bool a9;
  final a10Pointer = calloc<Struct10BytesHomogeneousBool>();
  final Struct10BytesHomogeneousBool a10 = a10Pointer.ref;
  bool a11;

  a0 = 1;
  a1 = false;
  a2 = true;
  a3 = false;
  a4 = true;
  a5 = false;
  a6 = true;
  a7 = false;
  a8 = true;
  a9 = false;
  a10.a0 = true;
  a10.a1 = false;
  a10.a2 = true;
  a10.a3 = false;
  a10.a4 = true;
  a10.a5 = false;
  a10.a6 = true;
  a10.a7 = false;
  a10.a8 = true;
  a10.a9 = false;
  a11 = true;

  final result = passUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);

  print("result = $result");

  Expect.equals(11, result);

  calloc.free(a10Pointer);
}

final passUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf =
    ffiTestFunctions
        .lookupFunction<
                Int32 Function(Uint8, Bool, Bool, Bool, Bool, Bool, Bool, Bool,
                    Bool, Bool, Struct10BytesInlineArrayBool, Bool),
                int Function(
                    int,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    bool,
                    Struct10BytesInlineArrayBool,
                    bool)>("PassUint8Boolx9Struct10BytesInlineArrayBoolBool",
            isLeaf: true);

/// Passing bools and a struct with bools.
/// Exhausts the registers to test bools and the bool struct alignment on the
/// stack.
void testPassUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf() {
  int a0;
  bool a1;
  bool a2;
  bool a3;
  bool a4;
  bool a5;
  bool a6;
  bool a7;
  bool a8;
  bool a9;
  final a10Pointer = calloc<Struct10BytesInlineArrayBool>();
  final Struct10BytesInlineArrayBool a10 = a10Pointer.ref;
  bool a11;

  a0 = 1;
  a1 = false;
  a2 = true;
  a3 = false;
  a4 = true;
  a5 = false;
  a6 = true;
  a7 = false;
  a8 = true;
  a9 = false;
  a10.a0[0] = true;
  a10.a0[1] = false;
  a10.a0[2] = true;
  a10.a0[3] = false;
  a10.a0[4] = true;
  a10.a0[5] = false;
  a10.a0[6] = true;
  a10.a0[7] = false;
  a10.a0[8] = true;
  a10.a0[9] = false;
  a11 = true;

  final result = passUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);

  print("result = $result");

  Expect.equals(11, result);

  calloc.free(a10Pointer);
}

final passUint8Struct1ByteBoolLeaf = ffiTestFunctions.lookupFunction<
    Bool Function(Uint8, Struct1ByteBool),
    bool Function(
        int, Struct1ByteBool)>("PassUint8Struct1ByteBool", isLeaf: true);

/// Returning a bool.
void testPassUint8Struct1ByteBoolLeaf() {
  int a0;
  final a1Pointer = calloc<Struct1ByteBool>();
  final Struct1ByteBool a1 = a1Pointer.ref;

  a0 = 1;
  a1.a0 = false;

  final result = passUint8Struct1ByteBoolLeaf(a0, a1);

  print("result = $result");

  Expect.equals(1 % 2 != 0, result);

  calloc.free(a1Pointer);
}

final passWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf = ffiTestFunctions
    .lookupFunction<
            WChar Function(WChar, StructInlineArrayInt, UintPtr, UintPtr, Long,
                UnsignedLong),
            int Function(int, StructInlineArrayInt, int, int, int, int)>(
        "PassWCharStructInlineArrayIntUintPtrx2LongUnsigned",
        isLeaf: true);

/// Returning a wchar.
void testPassWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf() {
  int a0;
  final a1Pointer = calloc<StructInlineArrayInt>();
  final StructInlineArrayInt a1 = a1Pointer.ref;
  int a2;
  int a3;
  int a4;
  int a5;

  a0 = 1;
  a1.a0[0] = 2;
  a1.a0[1] = 3;
  a1.a0[2] = 4;
  a1.a0[3] = 5;
  a1.a0[4] = 6;
  a1.a0[5] = 7;
  a1.a0[6] = 8;
  a1.a0[7] = 9;
  a1.a0[8] = 10;
  a1.a0[9] = 11;
  a2 = 12;
  a3 = 13;
  a4 = 14;
  a5 = 15;

  final result = passWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf(
      a0, a1, a2, a3, a4, a5);

  print("result = $result");

  Expect.equals(120, result);

  calloc.free(a1Pointer);
}

final returnStruct1ByteIntLeaf = ffiTestFunctions.lookupFunction<
    Struct1ByteInt Function(Int8),
    Struct1ByteInt Function(int)>("ReturnStruct1ByteInt", isLeaf: true);

/// Smallest struct with data.
void testReturnStruct1ByteIntLeaf() {
  int a0;

  a0 = -1;

  final result = returnStruct1ByteIntLeaf(a0);

  print("result = $result");

  Expect.equals(a0, result.a0);
}

final returnStruct3BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
    Struct3BytesHomogeneousUint8 Function(Uint8, Uint8, Uint8),
    Struct3BytesHomogeneousUint8 Function(
        int, int, int)>("ReturnStruct3BytesHomogeneousUint8", isLeaf: true);

/// Smaller than word size return value on all architectures.
void testReturnStruct3BytesHomogeneousUint8Leaf() {
  int a0;
  int a1;
  int a2;

  a0 = 1;
  a1 = 2;
  a2 = 3;

  final result = returnStruct3BytesHomogeneousUint8Leaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStruct3BytesInt2ByteAlignedLeaf = ffiTestFunctions.lookupFunction<
    Struct3BytesInt2ByteAligned Function(Int16, Int8),
    Struct3BytesInt2ByteAligned Function(
        int, int)>("ReturnStruct3BytesInt2ByteAligned", isLeaf: true);

/// Smaller than word size return value on all architectures.
/// With alignment rules taken into account size is 4 bytes.
void testReturnStruct3BytesInt2ByteAlignedLeaf() {
  int a0;
  int a1;

  a0 = -1;
  a1 = 2;

  final result = returnStruct3BytesInt2ByteAlignedLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
}

final returnStruct4BytesHomogeneousInt16Leaf = ffiTestFunctions.lookupFunction<
    Struct4BytesHomogeneousInt16 Function(Int16, Int16),
    Struct4BytesHomogeneousInt16 Function(
        int, int)>("ReturnStruct4BytesHomogeneousInt16", isLeaf: true);

/// Word size return value on 32 bit architectures..
void testReturnStruct4BytesHomogeneousInt16Leaf() {
  int a0;
  int a1;

  a0 = -1;
  a1 = 2;

  final result = returnStruct4BytesHomogeneousInt16Leaf(a0, a1);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
}

final returnStruct7BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
    Struct7BytesHomogeneousUint8 Function(
        Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8),
    Struct7BytesHomogeneousUint8 Function(int, int, int, int, int, int,
        int)>("ReturnStruct7BytesHomogeneousUint8", isLeaf: true);

/// Non-wordsize return value.
void testReturnStruct7BytesHomogeneousUint8Leaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;

  a0 = 1;
  a1 = 2;
  a2 = 3;
  a3 = 4;
  a4 = 5;
  a5 = 6;
  a6 = 7;

  final result =
      returnStruct7BytesHomogeneousUint8Leaf(a0, a1, a2, a3, a4, a5, a6);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
  Expect.equals(a3, result.a3);
  Expect.equals(a4, result.a4);
  Expect.equals(a5, result.a5);
  Expect.equals(a6, result.a6);
}

final returnStruct7BytesInt4ByteAlignedLeaf = ffiTestFunctions.lookupFunction<
    Struct7BytesInt4ByteAligned Function(Int32, Int16, Int8),
    Struct7BytesInt4ByteAligned Function(
        int, int, int)>("ReturnStruct7BytesInt4ByteAligned", isLeaf: true);

/// Non-wordsize return value.
/// With alignment rules taken into account size is 8 bytes.
void testReturnStruct7BytesInt4ByteAlignedLeaf() {
  int a0;
  int a1;
  int a2;

  a0 = -1;
  a1 = 2;
  a2 = -3;

  final result = returnStruct7BytesInt4ByteAlignedLeaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStruct8BytesIntLeaf = ffiTestFunctions.lookupFunction<
    Struct8BytesInt Function(Int16, Int16, Int32),
    Struct8BytesInt Function(
        int, int, int)>("ReturnStruct8BytesInt", isLeaf: true);

/// Return value in integer registers on many architectures.
void testReturnStruct8BytesIntLeaf() {
  int a0;
  int a1;
  int a2;

  a0 = -1;
  a1 = 2;
  a2 = -3;

  final result = returnStruct8BytesIntLeaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStruct8BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
    Struct8BytesHomogeneousFloat Function(Float, Float),
    Struct8BytesHomogeneousFloat Function(
        double, double)>("ReturnStruct8BytesHomogeneousFloat", isLeaf: true);

/// Return value in FP registers on many architectures.
void testReturnStruct8BytesHomogeneousFloatLeaf() {
  double a0;
  double a1;

  a0 = -1.0;
  a1 = 2.0;

  final result = returnStruct8BytesHomogeneousFloatLeaf(a0, a1);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
}

final returnStruct8BytesMixedLeaf = ffiTestFunctions.lookupFunction<
    Struct8BytesMixed Function(Float, Int16, Int16),
    Struct8BytesMixed Function(
        double, int, int)>("ReturnStruct8BytesMixed", isLeaf: true);

/// Return value split over FP and integer register in x64.
void testReturnStruct8BytesMixedLeaf() {
  double a0;
  int a1;
  int a2;

  a0 = -1.0;
  a1 = 2;
  a2 = -3;

  final result = returnStruct8BytesMixedLeaf(a0, a1, a2);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStruct9BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
    Struct9BytesHomogeneousUint8 Function(
        Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8),
    Struct9BytesHomogeneousUint8 Function(int, int, int, int, int, int, int,
        int, int)>("ReturnStruct9BytesHomogeneousUint8", isLeaf: true);

/// The minimum alignment of this struct is only 1 byte based on its fields.
/// Test that the memory backing these structs is the right size and that
/// dart:ffi trampolines do not write outside this size.
void testReturnStruct9BytesHomogeneousUint8Leaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;
  int a7;
  int a8;

  a0 = 1;
  a1 = 2;
  a2 = 3;
  a3 = 4;
  a4 = 5;
  a5 = 6;
  a6 = 7;
  a7 = 8;
  a8 = 9;

  final result = returnStruct9BytesHomogeneousUint8Leaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
  Expect.equals(a3, result.a3);
  Expect.equals(a4, result.a4);
  Expect.equals(a5, result.a5);
  Expect.equals(a6, result.a6);
  Expect.equals(a7, result.a7);
  Expect.equals(a8, result.a8);
}

final returnStruct9BytesInt4Or8ByteAlignedLeaf =
    ffiTestFunctions.lookupFunction<
        Struct9BytesInt4Or8ByteAligned Function(Int64, Int8),
        Struct9BytesInt4Or8ByteAligned Function(
            int, int)>("ReturnStruct9BytesInt4Or8ByteAligned", isLeaf: true);

/// Return value in two integer registers on x64.
/// With alignment rules taken into account size is 12 or 16 bytes.
void testReturnStruct9BytesInt4Or8ByteAlignedLeaf() {
  int a0;
  int a1;

  a0 = -1;
  a1 = 2;

  final result = returnStruct9BytesInt4Or8ByteAlignedLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
}

final returnStruct12BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
    Struct12BytesHomogeneousFloat Function(Float, Float, Float),
    Struct12BytesHomogeneousFloat Function(double, double,
        double)>("ReturnStruct12BytesHomogeneousFloat", isLeaf: true);

/// Return value in FPU registers, but does not use all registers on arm hardfp
/// and arm64.
void testReturnStruct12BytesHomogeneousFloatLeaf() {
  double a0;
  double a1;
  double a2;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;

  final result = returnStruct12BytesHomogeneousFloatLeaf(a0, a1, a2);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
  Expect.approxEquals(a2, result.a2);
}

final returnStruct16BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
    Struct16BytesHomogeneousFloat Function(Float, Float, Float, Float),
    Struct16BytesHomogeneousFloat Function(double, double, double,
        double)>("ReturnStruct16BytesHomogeneousFloat", isLeaf: true);

/// Return value in FPU registers on arm hardfp and arm64.
void testReturnStruct16BytesHomogeneousFloatLeaf() {
  double a0;
  double a1;
  double a2;
  double a3;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;
  a3 = 4.0;

  final result = returnStruct16BytesHomogeneousFloatLeaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
  Expect.approxEquals(a2, result.a2);
  Expect.approxEquals(a3, result.a3);
}

final returnStruct16BytesMixedLeaf = ffiTestFunctions.lookupFunction<
    Struct16BytesMixed Function(Double, Int64),
    Struct16BytesMixed Function(
        double, int)>("ReturnStruct16BytesMixed", isLeaf: true);

/// Return value split over FP and integer register in x64.
void testReturnStruct16BytesMixedLeaf() {
  double a0;
  int a1;

  a0 = -1.0;
  a1 = 2;

  final result = returnStruct16BytesMixedLeaf(a0, a1);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.equals(a1, result.a1);
}

final returnStruct16BytesMixed2Leaf = ffiTestFunctions.lookupFunction<
    Struct16BytesMixed2 Function(Float, Float, Float, Int32),
    Struct16BytesMixed2 Function(double, double, double,
        int)>("ReturnStruct16BytesMixed2", isLeaf: true);

/// Return value split over FP and integer register in x64.
/// The integer register contains half float half int.
void testReturnStruct16BytesMixed2Leaf() {
  double a0;
  double a1;
  double a2;
  int a3;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;
  a3 = 4;

  final result = returnStruct16BytesMixed2Leaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
  Expect.approxEquals(a2, result.a2);
  Expect.equals(a3, result.a3);
}

final returnStruct17BytesIntLeaf = ffiTestFunctions.lookupFunction<
    Struct17BytesInt Function(Int64, Int64, Int8),
    Struct17BytesInt Function(
        int, int, int)>("ReturnStruct17BytesInt", isLeaf: true);

/// Rerturn value returned in preallocated space passed by pointer on most ABIs.
/// Is non word size on purpose, to test that structs are rounded up to word size
/// on all ABIs.
void testReturnStruct17BytesIntLeaf() {
  int a0;
  int a1;
  int a2;

  a0 = -1;
  a1 = 2;
  a2 = -3;

  final result = returnStruct17BytesIntLeaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStruct19BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
    Struct19BytesHomogeneousUint8 Function(
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8,
        Uint8),
    Struct19BytesHomogeneousUint8 Function(
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int,
        int)>("ReturnStruct19BytesHomogeneousUint8", isLeaf: true);

/// The minimum alignment of this struct is only 1 byte based on its fields.
/// Test that the memory backing these structs is the right size and that
/// dart:ffi trampolines do not write outside this size.
void testReturnStruct19BytesHomogeneousUint8Leaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;
  int a7;
  int a8;
  int a9;
  int a10;
  int a11;
  int a12;
  int a13;
  int a14;
  int a15;
  int a16;
  int a17;
  int a18;

  a0 = 1;
  a1 = 2;
  a2 = 3;
  a3 = 4;
  a4 = 5;
  a5 = 6;
  a6 = 7;
  a7 = 8;
  a8 = 9;
  a9 = 10;
  a10 = 11;
  a11 = 12;
  a12 = 13;
  a13 = 14;
  a14 = 15;
  a15 = 16;
  a16 = 17;
  a17 = 18;
  a18 = 19;

  final result = returnStruct19BytesHomogeneousUint8Leaf(a0, a1, a2, a3, a4, a5,
      a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
  Expect.equals(a3, result.a3);
  Expect.equals(a4, result.a4);
  Expect.equals(a5, result.a5);
  Expect.equals(a6, result.a6);
  Expect.equals(a7, result.a7);
  Expect.equals(a8, result.a8);
  Expect.equals(a9, result.a9);
  Expect.equals(a10, result.a10);
  Expect.equals(a11, result.a11);
  Expect.equals(a12, result.a12);
  Expect.equals(a13, result.a13);
  Expect.equals(a14, result.a14);
  Expect.equals(a15, result.a15);
  Expect.equals(a16, result.a16);
  Expect.equals(a17, result.a17);
  Expect.equals(a18, result.a18);
}

final returnStruct20BytesHomogeneousInt32Leaf = ffiTestFunctions.lookupFunction<
    Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32, Int32),
    Struct20BytesHomogeneousInt32 Function(int, int, int, int,
        int)>("ReturnStruct20BytesHomogeneousInt32", isLeaf: true);

/// Return value too big to go in cpu registers on arm64.
void testReturnStruct20BytesHomogeneousInt32Leaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;

  a0 = -1;
  a1 = 2;
  a2 = -3;
  a3 = 4;
  a4 = -5;

  final result = returnStruct20BytesHomogeneousInt32Leaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
  Expect.equals(a3, result.a3);
  Expect.equals(a4, result.a4);
}

final returnStruct20BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
    Struct20BytesHomogeneousFloat Function(Float, Float, Float, Float, Float),
    Struct20BytesHomogeneousFloat Function(double, double, double, double,
        double)>("ReturnStruct20BytesHomogeneousFloat", isLeaf: true);

/// Return value too big to go in FPU registers on x64, arm hardfp and arm64.
void testReturnStruct20BytesHomogeneousFloatLeaf() {
  double a0;
  double a1;
  double a2;
  double a3;
  double a4;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;
  a3 = 4.0;
  a4 = -5.0;

  final result = returnStruct20BytesHomogeneousFloatLeaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
  Expect.approxEquals(a2, result.a2);
  Expect.approxEquals(a3, result.a3);
  Expect.approxEquals(a4, result.a4);
}

final returnStruct32BytesHomogeneousDoubleLeaf =
    ffiTestFunctions.lookupFunction<
        Struct32BytesHomogeneousDouble Function(Double, Double, Double, Double),
        Struct32BytesHomogeneousDouble Function(double, double, double,
            double)>("ReturnStruct32BytesHomogeneousDouble", isLeaf: true);

/// Return value in FPU registers on arm64.
void testReturnStruct32BytesHomogeneousDoubleLeaf() {
  double a0;
  double a1;
  double a2;
  double a3;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;
  a3 = 4.0;

  final result = returnStruct32BytesHomogeneousDoubleLeaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
  Expect.approxEquals(a2, result.a2);
  Expect.approxEquals(a3, result.a3);
}

final returnStruct40BytesHomogeneousDoubleLeaf =
    ffiTestFunctions.lookupFunction<
        Struct40BytesHomogeneousDouble Function(
            Double, Double, Double, Double, Double),
        Struct40BytesHomogeneousDouble Function(double, double, double, double,
            double)>("ReturnStruct40BytesHomogeneousDouble", isLeaf: true);

/// Return value too big to go in FPU registers on arm64.
void testReturnStruct40BytesHomogeneousDoubleLeaf() {
  double a0;
  double a1;
  double a2;
  double a3;
  double a4;

  a0 = -1.0;
  a1 = 2.0;
  a2 = -3.0;
  a3 = 4.0;
  a4 = -5.0;

  final result = returnStruct40BytesHomogeneousDoubleLeaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
  Expect.approxEquals(a2, result.a2);
  Expect.approxEquals(a3, result.a3);
  Expect.approxEquals(a4, result.a4);
}

final returnStruct1024BytesHomogeneousUint64Leaf =
    ffiTestFunctions.lookupFunction<
        Struct1024BytesHomogeneousUint64 Function(
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64,
            Uint64),
        Struct1024BytesHomogeneousUint64 Function(
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int,
            int)>("ReturnStruct1024BytesHomogeneousUint64", isLeaf: true);

/// Test 1kb struct.
void testReturnStruct1024BytesHomogeneousUint64Leaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;
  int a7;
  int a8;
  int a9;
  int a10;
  int a11;
  int a12;
  int a13;
  int a14;
  int a15;
  int a16;
  int a17;
  int a18;
  int a19;
  int a20;
  int a21;
  int a22;
  int a23;
  int a24;
  int a25;
  int a26;
  int a27;
  int a28;
  int a29;
  int a30;
  int a31;
  int a32;
  int a33;
  int a34;
  int a35;
  int a36;
  int a37;
  int a38;
  int a39;
  int a40;
  int a41;
  int a42;
  int a43;
  int a44;
  int a45;
  int a46;
  int a47;
  int a48;
  int a49;
  int a50;
  int a51;
  int a52;
  int a53;
  int a54;
  int a55;
  int a56;
  int a57;
  int a58;
  int a59;
  int a60;
  int a61;
  int a62;
  int a63;
  int a64;
  int a65;
  int a66;
  int a67;
  int a68;
  int a69;
  int a70;
  int a71;
  int a72;
  int a73;
  int a74;
  int a75;
  int a76;
  int a77;
  int a78;
  int a79;
  int a80;
  int a81;
  int a82;
  int a83;
  int a84;
  int a85;
  int a86;
  int a87;
  int a88;
  int a89;
  int a90;
  int a91;
  int a92;
  int a93;
  int a94;
  int a95;
  int a96;
  int a97;
  int a98;
  int a99;
  int a100;
  int a101;
  int a102;
  int a103;
  int a104;
  int a105;
  int a106;
  int a107;
  int a108;
  int a109;
  int a110;
  int a111;
  int a112;
  int a113;
  int a114;
  int a115;
  int a116;
  int a117;
  int a118;
  int a119;
  int a120;
  int a121;
  int a122;
  int a123;
  int a124;
  int a125;
  int a126;
  int a127;

  a0 = 1;
  a1 = 2;
  a2 = 3;
  a3 = 4;
  a4 = 5;
  a5 = 6;
  a6 = 7;
  a7 = 8;
  a8 = 9;
  a9 = 10;
  a10 = 11;
  a11 = 12;
  a12 = 13;
  a13 = 14;
  a14 = 15;
  a15 = 16;
  a16 = 17;
  a17 = 18;
  a18 = 19;
  a19 = 20;
  a20 = 21;
  a21 = 22;
  a22 = 23;
  a23 = 24;
  a24 = 25;
  a25 = 26;
  a26 = 27;
  a27 = 28;
  a28 = 29;
  a29 = 30;
  a30 = 31;
  a31 = 32;
  a32 = 33;
  a33 = 34;
  a34 = 35;
  a35 = 36;
  a36 = 37;
  a37 = 38;
  a38 = 39;
  a39 = 40;
  a40 = 41;
  a41 = 42;
  a42 = 43;
  a43 = 44;
  a44 = 45;
  a45 = 46;
  a46 = 47;
  a47 = 48;
  a48 = 49;
  a49 = 50;
  a50 = 51;
  a51 = 52;
  a52 = 53;
  a53 = 54;
  a54 = 55;
  a55 = 56;
  a56 = 57;
  a57 = 58;
  a58 = 59;
  a59 = 60;
  a60 = 61;
  a61 = 62;
  a62 = 63;
  a63 = 64;
  a64 = 65;
  a65 = 66;
  a66 = 67;
  a67 = 68;
  a68 = 69;
  a69 = 70;
  a70 = 71;
  a71 = 72;
  a72 = 73;
  a73 = 74;
  a74 = 75;
  a75 = 76;
  a76 = 77;
  a77 = 78;
  a78 = 79;
  a79 = 80;
  a80 = 81;
  a81 = 82;
  a82 = 83;
  a83 = 84;
  a84 = 85;
  a85 = 86;
  a86 = 87;
  a87 = 88;
  a88 = 89;
  a89 = 90;
  a90 = 91;
  a91 = 92;
  a92 = 93;
  a93 = 94;
  a94 = 95;
  a95 = 96;
  a96 = 97;
  a97 = 98;
  a98 = 99;
  a99 = 100;
  a100 = 101;
  a101 = 102;
  a102 = 103;
  a103 = 104;
  a104 = 105;
  a105 = 106;
  a106 = 107;
  a107 = 108;
  a108 = 109;
  a109 = 110;
  a110 = 111;
  a111 = 112;
  a112 = 113;
  a113 = 114;
  a114 = 115;
  a115 = 116;
  a116 = 117;
  a117 = 118;
  a118 = 119;
  a119 = 120;
  a120 = 121;
  a121 = 122;
  a122 = 123;
  a123 = 124;
  a124 = 125;
  a125 = 126;
  a126 = 127;
  a127 = 128;

  final result = returnStruct1024BytesHomogeneousUint64Leaf(
      a0,
      a1,
      a2,
      a3,
      a4,
      a5,
      a6,
      a7,
      a8,
      a9,
      a10,
      a11,
      a12,
      a13,
      a14,
      a15,
      a16,
      a17,
      a18,
      a19,
      a20,
      a21,
      a22,
      a23,
      a24,
      a25,
      a26,
      a27,
      a28,
      a29,
      a30,
      a31,
      a32,
      a33,
      a34,
      a35,
      a36,
      a37,
      a38,
      a39,
      a40,
      a41,
      a42,
      a43,
      a44,
      a45,
      a46,
      a47,
      a48,
      a49,
      a50,
      a51,
      a52,
      a53,
      a54,
      a55,
      a56,
      a57,
      a58,
      a59,
      a60,
      a61,
      a62,
      a63,
      a64,
      a65,
      a66,
      a67,
      a68,
      a69,
      a70,
      a71,
      a72,
      a73,
      a74,
      a75,
      a76,
      a77,
      a78,
      a79,
      a80,
      a81,
      a82,
      a83,
      a84,
      a85,
      a86,
      a87,
      a88,
      a89,
      a90,
      a91,
      a92,
      a93,
      a94,
      a95,
      a96,
      a97,
      a98,
      a99,
      a100,
      a101,
      a102,
      a103,
      a104,
      a105,
      a106,
      a107,
      a108,
      a109,
      a110,
      a111,
      a112,
      a113,
      a114,
      a115,
      a116,
      a117,
      a118,
      a119,
      a120,
      a121,
      a122,
      a123,
      a124,
      a125,
      a126,
      a127);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
  Expect.equals(a3, result.a3);
  Expect.equals(a4, result.a4);
  Expect.equals(a5, result.a5);
  Expect.equals(a6, result.a6);
  Expect.equals(a7, result.a7);
  Expect.equals(a8, result.a8);
  Expect.equals(a9, result.a9);
  Expect.equals(a10, result.a10);
  Expect.equals(a11, result.a11);
  Expect.equals(a12, result.a12);
  Expect.equals(a13, result.a13);
  Expect.equals(a14, result.a14);
  Expect.equals(a15, result.a15);
  Expect.equals(a16, result.a16);
  Expect.equals(a17, result.a17);
  Expect.equals(a18, result.a18);
  Expect.equals(a19, result.a19);
  Expect.equals(a20, result.a20);
  Expect.equals(a21, result.a21);
  Expect.equals(a22, result.a22);
  Expect.equals(a23, result.a23);
  Expect.equals(a24, result.a24);
  Expect.equals(a25, result.a25);
  Expect.equals(a26, result.a26);
  Expect.equals(a27, result.a27);
  Expect.equals(a28, result.a28);
  Expect.equals(a29, result.a29);
  Expect.equals(a30, result.a30);
  Expect.equals(a31, result.a31);
  Expect.equals(a32, result.a32);
  Expect.equals(a33, result.a33);
  Expect.equals(a34, result.a34);
  Expect.equals(a35, result.a35);
  Expect.equals(a36, result.a36);
  Expect.equals(a37, result.a37);
  Expect.equals(a38, result.a38);
  Expect.equals(a39, result.a39);
  Expect.equals(a40, result.a40);
  Expect.equals(a41, result.a41);
  Expect.equals(a42, result.a42);
  Expect.equals(a43, result.a43);
  Expect.equals(a44, result.a44);
  Expect.equals(a45, result.a45);
  Expect.equals(a46, result.a46);
  Expect.equals(a47, result.a47);
  Expect.equals(a48, result.a48);
  Expect.equals(a49, result.a49);
  Expect.equals(a50, result.a50);
  Expect.equals(a51, result.a51);
  Expect.equals(a52, result.a52);
  Expect.equals(a53, result.a53);
  Expect.equals(a54, result.a54);
  Expect.equals(a55, result.a55);
  Expect.equals(a56, result.a56);
  Expect.equals(a57, result.a57);
  Expect.equals(a58, result.a58);
  Expect.equals(a59, result.a59);
  Expect.equals(a60, result.a60);
  Expect.equals(a61, result.a61);
  Expect.equals(a62, result.a62);
  Expect.equals(a63, result.a63);
  Expect.equals(a64, result.a64);
  Expect.equals(a65, result.a65);
  Expect.equals(a66, result.a66);
  Expect.equals(a67, result.a67);
  Expect.equals(a68, result.a68);
  Expect.equals(a69, result.a69);
  Expect.equals(a70, result.a70);
  Expect.equals(a71, result.a71);
  Expect.equals(a72, result.a72);
  Expect.equals(a73, result.a73);
  Expect.equals(a74, result.a74);
  Expect.equals(a75, result.a75);
  Expect.equals(a76, result.a76);
  Expect.equals(a77, result.a77);
  Expect.equals(a78, result.a78);
  Expect.equals(a79, result.a79);
  Expect.equals(a80, result.a80);
  Expect.equals(a81, result.a81);
  Expect.equals(a82, result.a82);
  Expect.equals(a83, result.a83);
  Expect.equals(a84, result.a84);
  Expect.equals(a85, result.a85);
  Expect.equals(a86, result.a86);
  Expect.equals(a87, result.a87);
  Expect.equals(a88, result.a88);
  Expect.equals(a89, result.a89);
  Expect.equals(a90, result.a90);
  Expect.equals(a91, result.a91);
  Expect.equals(a92, result.a92);
  Expect.equals(a93, result.a93);
  Expect.equals(a94, result.a94);
  Expect.equals(a95, result.a95);
  Expect.equals(a96, result.a96);
  Expect.equals(a97, result.a97);
  Expect.equals(a98, result.a98);
  Expect.equals(a99, result.a99);
  Expect.equals(a100, result.a100);
  Expect.equals(a101, result.a101);
  Expect.equals(a102, result.a102);
  Expect.equals(a103, result.a103);
  Expect.equals(a104, result.a104);
  Expect.equals(a105, result.a105);
  Expect.equals(a106, result.a106);
  Expect.equals(a107, result.a107);
  Expect.equals(a108, result.a108);
  Expect.equals(a109, result.a109);
  Expect.equals(a110, result.a110);
  Expect.equals(a111, result.a111);
  Expect.equals(a112, result.a112);
  Expect.equals(a113, result.a113);
  Expect.equals(a114, result.a114);
  Expect.equals(a115, result.a115);
  Expect.equals(a116, result.a116);
  Expect.equals(a117, result.a117);
  Expect.equals(a118, result.a118);
  Expect.equals(a119, result.a119);
  Expect.equals(a120, result.a120);
  Expect.equals(a121, result.a121);
  Expect.equals(a122, result.a122);
  Expect.equals(a123, result.a123);
  Expect.equals(a124, result.a124);
  Expect.equals(a125, result.a125);
  Expect.equals(a126, result.a126);
  Expect.equals(a127, result.a127);
}

final returnStruct3BytesPackedIntLeaf = ffiTestFunctions.lookupFunction<
    Struct3BytesPackedInt Function(Int8, Int16),
    Struct3BytesPackedInt Function(
        int, int)>("ReturnStruct3BytesPackedInt", isLeaf: true);

/// Small struct with mis-aligned member.
void testReturnStruct3BytesPackedIntLeaf() {
  int a0;
  int a1;

  a0 = -1;
  a1 = 2;

  final result = returnStruct3BytesPackedIntLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
}

final returnStruct8BytesPackedIntLeaf = ffiTestFunctions.lookupFunction<
    Struct8BytesPackedInt Function(Uint8, Uint32, Uint8, Uint8, Uint8),
    Struct8BytesPackedInt Function(
        int, int, int, int, int)>("ReturnStruct8BytesPackedInt", isLeaf: true);

/// Struct with mis-aligned member.
void testReturnStruct8BytesPackedIntLeaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;

  a0 = 1;
  a1 = 2;
  a2 = 3;
  a3 = 4;
  a4 = 5;

  final result = returnStruct8BytesPackedIntLeaf(a0, a1, a2, a3, a4);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
  Expect.equals(a3, result.a3);
  Expect.equals(a4, result.a4);
}

final returnStruct9BytesPackedMixedLeaf = ffiTestFunctions.lookupFunction<
    Struct9BytesPackedMixed Function(Uint8, Double),
    Struct9BytesPackedMixed Function(
        int, double)>("ReturnStruct9BytesPackedMixed", isLeaf: true);

/// Struct with mis-aligned member.
/// Tests backfilling of CPU and FPU registers.
void testReturnStruct9BytesPackedMixedLeaf() {
  int a0;
  double a1;

  a0 = 1;
  a1 = 2.0;

  final result = returnStruct9BytesPackedMixedLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.approxEquals(a1, result.a1);
}

final returnUnion4BytesMixedLeaf = ffiTestFunctions.lookupFunction<
    Union4BytesMixed Function(Uint32),
    Union4BytesMixed Function(int)>("ReturnUnion4BytesMixed", isLeaf: true);

/// Returning a mixed integer/float union.
void testReturnUnion4BytesMixedLeaf() {
  int a0;

  a0 = 1;

  final result = returnUnion4BytesMixedLeaf(a0);

  print("result = $result");

  Expect.equals(a0, result.a0);
}

final returnUnion8BytesNestedFloatLeaf = ffiTestFunctions.lookupFunction<
    Union8BytesNestedFloat Function(Double),
    Union8BytesNestedFloat Function(
        double)>("ReturnUnion8BytesNestedFloat", isLeaf: true);

/// Returning a floating point only union.
void testReturnUnion8BytesNestedFloatLeaf() {
  double a0;

  a0 = -1.0;

  final result = returnUnion8BytesNestedFloatLeaf(a0);

  print("result = $result");

  Expect.approxEquals(a0, result.a0);
}

final returnUnion9BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
    Union9BytesNestedInt Function(Struct8BytesInt),
    Union9BytesNestedInt Function(
        Struct8BytesInt)>("ReturnUnion9BytesNestedInt", isLeaf: true);

/// Returning a mixed-size union.
void testReturnUnion9BytesNestedIntLeaf() {
  final a0Pointer = calloc<Struct8BytesInt>();
  final Struct8BytesInt a0 = a0Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;

  final result = returnUnion9BytesNestedIntLeaf(a0);

  print("result = $result");

  Expect.equals(a0.a0, result.a0.a0);
  Expect.equals(a0.a1, result.a0.a1);
  Expect.equals(a0.a2, result.a0.a2);

  calloc.free(a0Pointer);
}

final returnUnion16BytesNestedFloatLeaf = ffiTestFunctions.lookupFunction<
        Union16BytesNestedFloat Function(Struct8BytesHomogeneousFloat),
        Union16BytesNestedFloat Function(Struct8BytesHomogeneousFloat)>(
    "ReturnUnion16BytesNestedFloat",
    isLeaf: true);

/// Returning union with homogenous floats.
void testReturnUnion16BytesNestedFloatLeaf() {
  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;

  final result = returnUnion16BytesNestedFloatLeaf(a0);

  print("result = $result");

  Expect.approxEquals(a0.a0, result.a0.a0);
  Expect.approxEquals(a0.a1, result.a0.a1);

  calloc.free(a0Pointer);
}

final returnStructArgumentStruct1ByteIntLeaf = ffiTestFunctions.lookupFunction<
    Struct1ByteInt Function(Struct1ByteInt),
    Struct1ByteInt Function(
        Struct1ByteInt)>("ReturnStructArgumentStruct1ByteInt", isLeaf: true);

/// Test that a struct passed in as argument can be returned.
/// Especially for ffi callbacks.
/// Struct is passed in int registers in most ABIs.
void testReturnStructArgumentStruct1ByteIntLeaf() {
  final a0Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a0 = a0Pointer.ref;

  a0.a0 = -1;

  final result = returnStructArgumentStruct1ByteIntLeaf(a0);

  print("result = $result");

  Expect.equals(a0.a0, result.a0);

  calloc.free(a0Pointer);
}

final returnStructArgumentInt32x8Struct1ByteIntLeaf =
    ffiTestFunctions
        .lookupFunction<
                Struct1ByteInt Function(Int32, Int32, Int32, Int32, Int32, Int32,
                    Int32, Int32, Struct1ByteInt),
                Struct1ByteInt Function(
                    int, int, int, int, int, int, int, int, Struct1ByteInt)>(
            "ReturnStructArgumentInt32x8Struct1ByteInt",
            isLeaf: true);

/// Test that a struct passed in as argument can be returned.
/// Especially for ffi callbacks.
/// Struct is passed on stack on all ABIs.
void testReturnStructArgumentInt32x8Struct1ByteIntLeaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;
  int a7;
  final a8Pointer = calloc<Struct1ByteInt>();
  final Struct1ByteInt a8 = a8Pointer.ref;

  a0 = -1;
  a1 = 2;
  a2 = -3;
  a3 = 4;
  a4 = -5;
  a5 = 6;
  a6 = -7;
  a7 = 8;
  a8.a0 = -9;

  final result = returnStructArgumentInt32x8Struct1ByteIntLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.equals(a8.a0, result.a0);

  calloc.free(a8Pointer);
}

final returnStructArgumentStruct8BytesHomogeneousFloatLeaf =
    ffiTestFunctions.lookupFunction<
            Struct8BytesHomogeneousFloat Function(Struct8BytesHomogeneousFloat),
            Struct8BytesHomogeneousFloat Function(
                Struct8BytesHomogeneousFloat)>(
        "ReturnStructArgumentStruct8BytesHomogeneousFloat",
        isLeaf: true);

/// Test that a struct passed in as argument can be returned.
/// Especially for ffi callbacks.
/// Struct is passed in float registers in most ABIs.
void testReturnStructArgumentStruct8BytesHomogeneousFloatLeaf() {
  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;

  a0.a0 = -1.0;
  a0.a1 = 2.0;

  final result = returnStructArgumentStruct8BytesHomogeneousFloatLeaf(a0);

  print("result = $result");

  Expect.approxEquals(a0.a0, result.a0);
  Expect.approxEquals(a0.a1, result.a1);

  calloc.free(a0Pointer);
}

final returnStructArgumentStruct20BytesHomogeneousInt32Leaf =
    ffiTestFunctions
        .lookupFunction<
                Struct20BytesHomogeneousInt32 Function(
                    Struct20BytesHomogeneousInt32),
                Struct20BytesHomogeneousInt32 Function(
                    Struct20BytesHomogeneousInt32)>(
            "ReturnStructArgumentStruct20BytesHomogeneousInt32",
            isLeaf: true);

/// On arm64, both argument and return value are passed in by pointer.
void testReturnStructArgumentStruct20BytesHomogeneousInt32Leaf() {
  final a0Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a0 = a0Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a0.a3 = 4;
  a0.a4 = -5;

  final result = returnStructArgumentStruct20BytesHomogeneousInt32Leaf(a0);

  print("result = $result");

  Expect.equals(a0.a0, result.a0);
  Expect.equals(a0.a1, result.a1);
  Expect.equals(a0.a2, result.a2);
  Expect.equals(a0.a3, result.a3);
  Expect.equals(a0.a4, result.a4);

  calloc.free(a0Pointer);
}

final returnStructArgumentInt32x8Struct20BytesHomogeneouLeaf =
    ffiTestFunctions.lookupFunction<
            Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32,
                Int32, Int32, Int32, Int32, Struct20BytesHomogeneousInt32),
            Struct20BytesHomogeneousInt32 Function(int, int, int, int, int, int,
                int, int, Struct20BytesHomogeneousInt32)>(
        "ReturnStructArgumentInt32x8Struct20BytesHomogeneou",
        isLeaf: true);

/// On arm64, both argument and return value are passed in by pointer.
/// Ints exhaust registers, so that pointer is passed on stack.
void testReturnStructArgumentInt32x8Struct20BytesHomogeneouLeaf() {
  int a0;
  int a1;
  int a2;
  int a3;
  int a4;
  int a5;
  int a6;
  int a7;
  final a8Pointer = calloc<Struct20BytesHomogeneousInt32>();
  final Struct20BytesHomogeneousInt32 a8 = a8Pointer.ref;

  a0 = -1;
  a1 = 2;
  a2 = -3;
  a3 = 4;
  a4 = -5;
  a5 = 6;
  a6 = -7;
  a7 = 8;
  a8.a0 = -9;
  a8.a1 = 10;
  a8.a2 = -11;
  a8.a3 = 12;
  a8.a4 = -13;

  final result = returnStructArgumentInt32x8Struct20BytesHomogeneouLeaf(
      a0, a1, a2, a3, a4, a5, a6, a7, a8);

  print("result = $result");

  Expect.equals(a8.a0, result.a0);
  Expect.equals(a8.a1, result.a1);
  Expect.equals(a8.a2, result.a2);
  Expect.equals(a8.a3, result.a3);
  Expect.equals(a8.a4, result.a4);

  calloc.free(a8Pointer);
}

final returnStructArgumentStruct8BytesInlineArrayIntLeaf =
    ffiTestFunctions.lookupFunction<
            Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt),
            Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt)>(
        "ReturnStructArgumentStruct8BytesInlineArrayInt",
        isLeaf: true);

/// Test returning struct with inline array.
void testReturnStructArgumentStruct8BytesInlineArrayIntLeaf() {
  final a0Pointer = calloc<Struct8BytesInlineArrayInt>();
  final Struct8BytesInlineArrayInt a0 = a0Pointer.ref;

  a0.a0[0] = 1;
  a0.a0[1] = 2;
  a0.a0[2] = 3;
  a0.a0[3] = 4;
  a0.a0[4] = 5;
  a0.a0[5] = 6;
  a0.a0[6] = 7;
  a0.a0[7] = 8;

  final result = returnStructArgumentStruct8BytesInlineArrayIntLeaf(a0);

  print("result = $result");

  for (int i = 0; i < 8; i++) {
    Expect.equals(a0.a0[i], result.a0[i]);
  }

  calloc.free(a0Pointer);
}

final returnStructArgumentStructStruct16BytesHomogeneousLeaf =
    ffiTestFunctions.lookupFunction<
            StructStruct16BytesHomogeneousFloat2 Function(
                StructStruct16BytesHomogeneousFloat2),
            StructStruct16BytesHomogeneousFloat2 Function(
                StructStruct16BytesHomogeneousFloat2)>(
        "ReturnStructArgumentStructStruct16BytesHomogeneous",
        isLeaf: true);

/// Return value in FPU registers on arm hardfp and arm64.
void testReturnStructArgumentStructStruct16BytesHomogeneousLeaf() {
  final a0Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
  final StructStruct16BytesHomogeneousFloat2 a0 = a0Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1[0].a0 = 2.0;
  a0.a1[1].a0 = -3.0;
  a0.a2 = 4.0;

  final result = returnStructArgumentStructStruct16BytesHomogeneousLeaf(a0);

  print("result = $result");

  Expect.approxEquals(a0.a0.a0, result.a0.a0);
  for (int i = 0; i < 2; i++) {
    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
  }
  Expect.approxEquals(a0.a2, result.a2);

  calloc.free(a0Pointer);
}

final returnStructArgumentStructStruct32BytesHomogeneousLeaf =
    ffiTestFunctions.lookupFunction<
            StructStruct32BytesHomogeneousDouble2 Function(
                StructStruct32BytesHomogeneousDouble2),
            StructStruct32BytesHomogeneousDouble2 Function(
                StructStruct32BytesHomogeneousDouble2)>(
        "ReturnStructArgumentStructStruct32BytesHomogeneous",
        isLeaf: true);

/// Return value in FPU registers on arm64.
void testReturnStructArgumentStructStruct32BytesHomogeneousLeaf() {
  final a0Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
  final StructStruct32BytesHomogeneousDouble2 a0 = a0Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1[0].a0 = 2.0;
  a0.a1[1].a0 = -3.0;
  a0.a2 = 4.0;

  final result = returnStructArgumentStructStruct32BytesHomogeneousLeaf(a0);

  print("result = $result");

  Expect.approxEquals(a0.a0.a0, result.a0.a0);
  for (int i = 0; i < 2; i++) {
    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
  }
  Expect.approxEquals(a0.a2, result.a2);

  calloc.free(a0Pointer);
}

final returnStructArgumentStructStruct16BytesMixed3Leaf =
    ffiTestFunctions.lookupFunction<
            StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3),
            StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3)>(
        "ReturnStructArgumentStructStruct16BytesMixed3",
        isLeaf: true);

/// On x64 Linux, return value is split over FP and int registers.
void testReturnStructArgumentStructStruct16BytesMixed3Leaf() {
  final a0Pointer = calloc<StructStruct16BytesMixed3>();
  final StructStruct16BytesMixed3 a0 = a0Pointer.ref;

  a0.a0.a0 = -1.0;
  a0.a1[0].a0 = 2.0;
  a0.a1[0].a1 = -3;
  a0.a1[0].a2 = 4;
  a0.a2[0] = -5;
  a0.a2[1] = 6;

  final result = returnStructArgumentStructStruct16BytesMixed3Leaf(a0);

  print("result = $result");

  Expect.approxEquals(a0.a0.a0, result.a0.a0);
  for (int i = 0; i < 1; i++) {
    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
    Expect.equals(a0.a1[i].a1, result.a1[i].a1);
    Expect.equals(a0.a1[i].a2, result.a1[i].a2);
  }
  for (int i = 0; i < 2; i++) {
    Expect.equals(a0.a2[i], result.a2[i]);
  }

  calloc.free(a0Pointer);
}

final returnStructAlignmentInt16Leaf = ffiTestFunctions.lookupFunction<
    StructAlignmentInt16 Function(Int8, Int16, Int8),
    StructAlignmentInt16 Function(
        int, int, int)>("ReturnStructAlignmentInt16", isLeaf: true);

/// Test alignment and padding of 16 byte int within struct.
void testReturnStructAlignmentInt16Leaf() {
  int a0;
  int a1;
  int a2;

  a0 = -1;
  a1 = 2;
  a2 = -3;

  final result = returnStructAlignmentInt16Leaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStructAlignmentInt32Leaf = ffiTestFunctions.lookupFunction<
    StructAlignmentInt32 Function(Int8, Int32, Int8),
    StructAlignmentInt32 Function(
        int, int, int)>("ReturnStructAlignmentInt32", isLeaf: true);

/// Test alignment and padding of 32 byte int within struct.
void testReturnStructAlignmentInt32Leaf() {
  int a0;
  int a1;
  int a2;

  a0 = -1;
  a1 = 2;
  a2 = -3;

  final result = returnStructAlignmentInt32Leaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStructAlignmentInt64Leaf = ffiTestFunctions.lookupFunction<
    StructAlignmentInt64 Function(Int8, Int64, Int8),
    StructAlignmentInt64 Function(
        int, int, int)>("ReturnStructAlignmentInt64", isLeaf: true);

/// Test alignment and padding of 64 byte int within struct.
void testReturnStructAlignmentInt64Leaf() {
  int a0;
  int a1;
  int a2;

  a0 = -1;
  a1 = 2;
  a2 = -3;

  final result = returnStructAlignmentInt64Leaf(a0, a1, a2);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1, result.a1);
  Expect.equals(a2, result.a2);
}

final returnStruct8BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
        Struct8BytesNestedInt Function(
            Struct4BytesHomogeneousInt16, Struct4BytesHomogeneousInt16),
        Struct8BytesNestedInt Function(
            Struct4BytesHomogeneousInt16, Struct4BytesHomogeneousInt16)>(
    "ReturnStruct8BytesNestedInt",
    isLeaf: true);

/// Simple nested struct.
void testReturnStruct8BytesNestedIntLeaf() {
  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a1.a0 = -3;
  a1.a1 = 4;

  final result = returnStruct8BytesNestedIntLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0, result.a0.a0);
  Expect.equals(a0.a1, result.a0.a1);
  Expect.equals(a1.a0, result.a1.a0);
  Expect.equals(a1.a1, result.a1.a1);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStruct8BytesNestedFloatLeaf = ffiTestFunctions.lookupFunction<
    Struct8BytesNestedFloat Function(Struct4BytesFloat, Struct4BytesFloat),
    Struct8BytesNestedFloat Function(Struct4BytesFloat,
        Struct4BytesFloat)>("ReturnStruct8BytesNestedFloat", isLeaf: true);

/// Simple nested struct with floats.
void testReturnStruct8BytesNestedFloatLeaf() {
  final a0Pointer = calloc<Struct4BytesFloat>();
  final Struct4BytesFloat a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct4BytesFloat>();
  final Struct4BytesFloat a1 = a1Pointer.ref;

  a0.a0 = -1.0;
  a1.a0 = 2.0;

  final result = returnStruct8BytesNestedFloatLeaf(a0, a1);

  print("result = $result");

  Expect.approxEquals(a0.a0, result.a0.a0);
  Expect.approxEquals(a1.a0, result.a1.a0);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStruct8BytesNestedFloat2Leaf = ffiTestFunctions.lookupFunction<
    Struct8BytesNestedFloat2 Function(Struct4BytesFloat, Float),
    Struct8BytesNestedFloat2 Function(Struct4BytesFloat,
        double)>("ReturnStruct8BytesNestedFloat2", isLeaf: true);

/// The nesting is irregular, testing homogenous float rules on arm and arm64,
/// and the fpu register usage on x64.
void testReturnStruct8BytesNestedFloat2Leaf() {
  final a0Pointer = calloc<Struct4BytesFloat>();
  final Struct4BytesFloat a0 = a0Pointer.ref;
  double a1;

  a0.a0 = -1.0;
  a1 = 2.0;

  final result = returnStruct8BytesNestedFloat2Leaf(a0, a1);

  print("result = $result");

  Expect.approxEquals(a0.a0, result.a0.a0);
  Expect.approxEquals(a1, result.a1);

  calloc.free(a0Pointer);
}

final returnStruct8BytesNestedMixedLeaf = ffiTestFunctions.lookupFunction<
    Struct8BytesNestedMixed Function(
        Struct4BytesHomogeneousInt16, Struct4BytesFloat),
    Struct8BytesNestedMixed Function(Struct4BytesHomogeneousInt16,
        Struct4BytesFloat)>("ReturnStruct8BytesNestedMixed", isLeaf: true);

/// Simple nested struct with mixed members.
void testReturnStruct8BytesNestedMixedLeaf() {
  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct4BytesFloat>();
  final Struct4BytesFloat a1 = a1Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a1.a0 = -3.0;

  final result = returnStruct8BytesNestedMixedLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0, result.a0.a0);
  Expect.equals(a0.a1, result.a0.a1);
  Expect.approxEquals(a1.a0, result.a1.a0);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStruct16BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
    Struct16BytesNestedInt Function(
        Struct8BytesNestedInt, Struct8BytesNestedInt),
    Struct16BytesNestedInt Function(Struct8BytesNestedInt,
        Struct8BytesNestedInt)>("ReturnStruct16BytesNestedInt", isLeaf: true);

/// Deeper nested struct to test recursive member access.
void testReturnStruct16BytesNestedIntLeaf() {
  final a0Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct8BytesNestedInt>();
  final Struct8BytesNestedInt a1 = a1Pointer.ref;

  a0.a0.a0 = -1;
  a0.a0.a1 = 2;
  a0.a1.a0 = -3;
  a0.a1.a1 = 4;
  a1.a0.a0 = -5;
  a1.a0.a1 = 6;
  a1.a1.a0 = -7;
  a1.a1.a1 = 8;

  final result = returnStruct16BytesNestedIntLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0.a0, result.a0.a0.a0);
  Expect.equals(a0.a0.a1, result.a0.a0.a1);
  Expect.equals(a0.a1.a0, result.a0.a1.a0);
  Expect.equals(a0.a1.a1, result.a0.a1.a1);
  Expect.equals(a1.a0.a0, result.a1.a0.a0);
  Expect.equals(a1.a0.a1, result.a1.a0.a1);
  Expect.equals(a1.a1.a0, result.a1.a1.a0);
  Expect.equals(a1.a1.a1, result.a1.a1.a1);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStruct32BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
    Struct32BytesNestedInt Function(
        Struct16BytesNestedInt, Struct16BytesNestedInt),
    Struct32BytesNestedInt Function(Struct16BytesNestedInt,
        Struct16BytesNestedInt)>("ReturnStruct32BytesNestedInt", isLeaf: true);

/// Even deeper nested struct to test recursive member access.
void testReturnStruct32BytesNestedIntLeaf() {
  final a0Pointer = calloc<Struct16BytesNestedInt>();
  final Struct16BytesNestedInt a0 = a0Pointer.ref;
  final a1Pointer = calloc<Struct16BytesNestedInt>();
  final Struct16BytesNestedInt a1 = a1Pointer.ref;

  a0.a0.a0.a0 = -1;
  a0.a0.a0.a1 = 2;
  a0.a0.a1.a0 = -3;
  a0.a0.a1.a1 = 4;
  a0.a1.a0.a0 = -5;
  a0.a1.a0.a1 = 6;
  a0.a1.a1.a0 = -7;
  a0.a1.a1.a1 = 8;
  a1.a0.a0.a0 = -9;
  a1.a0.a0.a1 = 10;
  a1.a0.a1.a0 = -11;
  a1.a0.a1.a1 = 12;
  a1.a1.a0.a0 = -13;
  a1.a1.a0.a1 = 14;
  a1.a1.a1.a0 = -15;
  a1.a1.a1.a1 = 16;

  final result = returnStruct32BytesNestedIntLeaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0.a0.a0, result.a0.a0.a0.a0);
  Expect.equals(a0.a0.a0.a1, result.a0.a0.a0.a1);
  Expect.equals(a0.a0.a1.a0, result.a0.a0.a1.a0);
  Expect.equals(a0.a0.a1.a1, result.a0.a0.a1.a1);
  Expect.equals(a0.a1.a0.a0, result.a0.a1.a0.a0);
  Expect.equals(a0.a1.a0.a1, result.a0.a1.a0.a1);
  Expect.equals(a0.a1.a1.a0, result.a0.a1.a1.a0);
  Expect.equals(a0.a1.a1.a1, result.a0.a1.a1.a1);
  Expect.equals(a1.a0.a0.a0, result.a1.a0.a0.a0);
  Expect.equals(a1.a0.a0.a1, result.a1.a0.a0.a1);
  Expect.equals(a1.a0.a1.a0, result.a1.a0.a1.a0);
  Expect.equals(a1.a0.a1.a1, result.a1.a0.a1.a1);
  Expect.equals(a1.a1.a0.a0, result.a1.a1.a0.a0);
  Expect.equals(a1.a1.a0.a1, result.a1.a1.a0.a1);
  Expect.equals(a1.a1.a1.a0, result.a1.a1.a1.a0);
  Expect.equals(a1.a1.a1.a1, result.a1.a1.a1.a1);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStructNestedIntStructAlignmentInt16Leaf =
    ffiTestFunctions.lookupFunction<
            StructNestedIntStructAlignmentInt16 Function(
                StructAlignmentInt16, StructAlignmentInt16),
            StructNestedIntStructAlignmentInt16 Function(
                StructAlignmentInt16, StructAlignmentInt16)>(
        "ReturnStructNestedIntStructAlignmentInt16",
        isLeaf: true);

/// Test alignment and padding of nested struct with 16 byte int.
void testReturnStructNestedIntStructAlignmentInt16Leaf() {
  final a0Pointer = calloc<StructAlignmentInt16>();
  final StructAlignmentInt16 a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructAlignmentInt16>();
  final StructAlignmentInt16 a1 = a1Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4;
  a1.a1 = -5;
  a1.a2 = 6;

  final result = returnStructNestedIntStructAlignmentInt16Leaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0, result.a0.a0);
  Expect.equals(a0.a1, result.a0.a1);
  Expect.equals(a0.a2, result.a0.a2);
  Expect.equals(a1.a0, result.a1.a0);
  Expect.equals(a1.a1, result.a1.a1);
  Expect.equals(a1.a2, result.a1.a2);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStructNestedIntStructAlignmentInt32Leaf =
    ffiTestFunctions.lookupFunction<
            StructNestedIntStructAlignmentInt32 Function(
                StructAlignmentInt32, StructAlignmentInt32),
            StructNestedIntStructAlignmentInt32 Function(
                StructAlignmentInt32, StructAlignmentInt32)>(
        "ReturnStructNestedIntStructAlignmentInt32",
        isLeaf: true);

/// Test alignment and padding of nested struct with 32 byte int.
void testReturnStructNestedIntStructAlignmentInt32Leaf() {
  final a0Pointer = calloc<StructAlignmentInt32>();
  final StructAlignmentInt32 a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructAlignmentInt32>();
  final StructAlignmentInt32 a1 = a1Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4;
  a1.a1 = -5;
  a1.a2 = 6;

  final result = returnStructNestedIntStructAlignmentInt32Leaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0, result.a0.a0);
  Expect.equals(a0.a1, result.a0.a1);
  Expect.equals(a0.a2, result.a0.a2);
  Expect.equals(a1.a0, result.a1.a0);
  Expect.equals(a1.a1, result.a1.a1);
  Expect.equals(a1.a2, result.a1.a2);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStructNestedIntStructAlignmentInt64Leaf =
    ffiTestFunctions.lookupFunction<
            StructNestedIntStructAlignmentInt64 Function(
                StructAlignmentInt64, StructAlignmentInt64),
            StructNestedIntStructAlignmentInt64 Function(
                StructAlignmentInt64, StructAlignmentInt64)>(
        "ReturnStructNestedIntStructAlignmentInt64",
        isLeaf: true);

/// Test alignment and padding of nested struct with 64 byte int.
void testReturnStructNestedIntStructAlignmentInt64Leaf() {
  final a0Pointer = calloc<StructAlignmentInt64>();
  final StructAlignmentInt64 a0 = a0Pointer.ref;
  final a1Pointer = calloc<StructAlignmentInt64>();
  final StructAlignmentInt64 a1 = a1Pointer.ref;

  a0.a0 = -1;
  a0.a1 = 2;
  a0.a2 = -3;
  a1.a0 = 4;
  a1.a1 = -5;
  a1.a2 = 6;

  final result = returnStructNestedIntStructAlignmentInt64Leaf(a0, a1);

  print("result = $result");

  Expect.equals(a0.a0, result.a0.a0);
  Expect.equals(a0.a1, result.a0.a1);
  Expect.equals(a0.a2, result.a0.a2);
  Expect.equals(a1.a0, result.a1.a0);
  Expect.equals(a1.a1, result.a1.a1);
  Expect.equals(a1.a2, result.a1.a2);

  calloc.free(a0Pointer);
  calloc.free(a1Pointer);
}

final returnStructNestedIrregularEvenBiggerLeaf =
    ffiTestFunctions.lookupFunction<
        StructNestedIrregularEvenBigger Function(Uint64,
            StructNestedIrregularBigger, StructNestedIrregularBigger, Double),
        StructNestedIrregularEvenBigger Function(
            int,
            StructNestedIrregularBigger,
            StructNestedIrregularBigger,
            double)>("ReturnStructNestedIrregularEvenBigger", isLeaf: true);

/// Return big irregular struct as smoke test.
void testReturnStructNestedIrregularEvenBiggerLeaf() {
  int a0;
  final a1Pointer = calloc<StructNestedIrregularBigger>();
  final StructNestedIrregularBigger a1 = a1Pointer.ref;
  final a2Pointer = calloc<StructNestedIrregularBigger>();
  final StructNestedIrregularBigger a2 = a2Pointer.ref;
  double a3;

  a0 = 1;
  a1.a0.a0 = 2;
  a1.a0.a1.a0.a0 = -3;
  a1.a0.a1.a0.a1 = 4;
  a1.a0.a1.a1.a0 = -5.0;
  a1.a0.a2 = 6;
  a1.a0.a3.a0.a0 = -7.0;
  a1.a0.a3.a1 = 8.0;
  a1.a0.a4 = 9;
  a1.a0.a5.a0.a0 = 10.0;
  a1.a0.a5.a1.a0 = -11.0;
  a1.a0.a6 = 12;
  a1.a1.a0.a0 = -13;
  a1.a1.a0.a1 = 14;
  a1.a1.a1.a0 = -15.0;
  a1.a2 = 16.0;
  a1.a3 = -17.0;
  a2.a0.a0 = 18;
  a2.a0.a1.a0.a0 = -19;
  a2.a0.a1.a0.a1 = 20;
  a2.a0.a1.a1.a0 = -21.0;
  a2.a0.a2 = 22;
  a2.a0.a3.a0.a0 = -23.0;
  a2.a0.a3.a1 = 24.0;
  a2.a0.a4 = 25;
  a2.a0.a5.a0.a0 = 26.0;
  a2.a0.a5.a1.a0 = -27.0;
  a2.a0.a6 = 28;
  a2.a1.a0.a0 = -29;
  a2.a1.a0.a1 = 30;
  a2.a1.a1.a0 = -31.0;
  a2.a2 = 32.0;
  a2.a3 = -33.0;
  a3 = 34.0;

  final result = returnStructNestedIrregularEvenBiggerLeaf(a0, a1, a2, a3);

  print("result = $result");

  Expect.equals(a0, result.a0);
  Expect.equals(a1.a0.a0, result.a1.a0.a0);
  Expect.equals(a1.a0.a1.a0.a0, result.a1.a0.a1.a0.a0);
  Expect.equals(a1.a0.a1.a0.a1, result.a1.a0.a1.a0.a1);
  Expect.approxEquals(a1.a0.a1.a1.a0, result.a1.a0.a1.a1.a0);
  Expect.equals(a1.a0.a2, result.a1.a0.a2);
  Expect.approxEquals(a1.a0.a3.a0.a0, result.a1.a0.a3.a0.a0);
  Expect.approxEquals(a1.a0.a3.a1, result.a1.a0.a3.a1);
  Expect.equals(a1.a0.a4, result.a1.a0.a4);
  Expect.approxEquals(a1.a0.a5.a0.a0, result.a1.a0.a5.a0.a0);
  Expect.approxEquals(a1.a0.a5.a1.a0, result.a1.a0.a5.a1.a0);
  Expect.equals(a1.a0.a6, result.a1.a0.a6);
  Expect.equals(a1.a1.a0.a0, result.a1.a1.a0.a0);
  Expect.equals(a1.a1.a0.a1, result.a1.a1.a0.a1);
  Expect.approxEquals(a1.a1.a1.a0, result.a1.a1.a1.a0);
  Expect.approxEquals(a1.a2, result.a1.a2);
  Expect.approxEquals(a1.a3, result.a1.a3);
  Expect.equals(a2.a0.a0, result.a2.a0.a0);
  Expect.equals(a2.a0.a1.a0.a0, result.a2.a0.a1.a0.a0);
  Expect.equals(a2.a0.a1.a0.a1, result.a2.a0.a1.a0.a1);
  Expect.approxEquals(a2.a0.a1.a1.a0, result.a2.a0.a1.a1.a0);
  Expect.equals(a2.a0.a2, result.a2.a0.a2);
  Expect.approxEquals(a2.a0.a3.a0.a0, result.a2.a0.a3.a0.a0);
  Expect.approxEquals(a2.a0.a3.a1, result.a2.a0.a3.a1);
  Expect.equals(a2.a0.a4, result.a2.a0.a4);
  Expect.approxEquals(a2.a0.a5.a0.a0, result.a2.a0.a5.a0.a0);
  Expect.approxEquals(a2.a0.a5.a1.a0, result.a2.a0.a5.a1.a0);
  Expect.equals(a2.a0.a6, result.a2.a0.a6);
  Expect.equals(a2.a1.a0.a0, result.a2.a1.a0.a0);
  Expect.equals(a2.a1.a0.a1, result.a2.a1.a0.a1);
  Expect.approxEquals(a2.a1.a1.a0, result.a2.a1.a1.a0);
  Expect.approxEquals(a2.a2, result.a2.a2);
  Expect.approxEquals(a2.a3, result.a2.a3);
  Expect.approxEquals(a3, result.a3);

  calloc.free(a1Pointer);
  calloc.free(a2Pointer);
}