| // Copyright (c) 2019, 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. |
| |
| // @dart = 2.9 |
| |
| import 'package:expect/expect.dart'; |
| |
| // Stress tests on loop nesting depth. Make sure loop and induction |
| // analysis do not break down (excessive compile-time or otherwise) |
| // when analyzing a deeply nested loop with dependent bounds. |
| |
| @pragma("vm:never-inline") |
| foo(List<int> a) { |
| for (int i0 = 100; i0 <= a.length - 101; i0++) |
| for (int i1 = i0 - 1; i1 <= i0 + 1; i1++) |
| for (int i2 = i1 - 1; i2 <= i1 + 1; i2++) |
| for (int i3 = i2 - 1; i3 <= i2 + 1; i3++) |
| for (int i4 = i3 - 1; i4 <= i3 + 1; i4++) |
| for (int i5 = i4 - 1; i5 <= i4 + 1; i5++) |
| for (int i6 = i5 - 1; i6 <= i5 + 1; i6++) |
| for (int i7 = i6 - 1; i7 <= i6 + 1; i7++) |
| for (int i8 = i7 - 1; i8 <= i7 + 1; i8++) |
| for (int i9 = i8 - 1; i9 <= i8 + 1; i9++) |
| for (int i10 = i9 - 1; i10 <= i9 + 1; i10++) |
| for (int i11 = i10 - 1; i11 <= i10 + 1; i11++) |
| for (int i12 = i11 - 1; i12 <= i11 + 1; i12++) |
| for (int i13 = i12 - 1; i13 <= i12 + 1; i13++) |
| for (int i14 = i13 - 1; i14 <= i13 + 1; i14++) |
| for (int i15 = i14 - 1; i15 <= i14 + 1; i15++) |
| for (int i16 = i15 - 1; i16 <= i15 + 1; i16++) |
| for (int i17 = i16 - 1; |
| i17 <= i16 + 1; |
| i17++) |
| for (int i18 = i17 - 1; |
| i18 <= i17 + 1; |
| i18++) |
| for (int i19 = i18 - 1; |
| i19 <= i18 + 1; |
| i19++) |
| for (int i20 = i19 - 1; |
| i20 <= i19 + 1; |
| i20++) |
| for (int i21 = i20 - 1; |
| i21 <= i20 + 1; |
| i21++) |
| for (int i22 = i21 - 1; |
| i22 <= i21 + 1; |
| i22++) |
| for (int i23 = i22 - 1; |
| i23 <= i22 + 1; |
| i23++) |
| for (int i24 = i23 - 1; |
| i24 <= i23 + 1; |
| i24++) |
| for (int i25 = i24 - 1; |
| i25 <= i24 + 1; |
| i25++) |
| for (int i26 = i25 - 1; |
| i26 <= i25 + 1; |
| i26++) |
| for (int i27 = i26 - 1; |
| i27 <= i26 + 1; |
| i27++) |
| for (int i28 = |
| i27 - 1; |
| i28 <= i27 + 1; |
| i28++) |
| for (int i29 = |
| i28 - 1; |
| i29 <= i28 + 1; |
| i29++) |
| for (int i30 = |
| i29 - 1; |
| i30 <= |
| i29 + 1; |
| i30++) |
| for (int i31 = |
| i30 - 1; |
| i31 <= |
| i30 + 1; |
| i31++) |
| for (int i32 = |
| i31 - |
| 1; |
| i32 <= |
| i31 + |
| 1; |
| i32++) |
| for (int i33 = |
| i32 - |
| 1; |
| i33 <= |
| i32 + |
| 1; |
| i33++) |
| for (int i34 = i33 - |
| 1; |
| i34 <= |
| i33 + 1; |
| i34++) |
| for (int i35 = i34 - |
| 1; |
| i35 <= |
| i34 + 1; |
| i35++) |
| for (int i36 = i35 - 1; |
| i36 <= i35 + 1; |
| i36++) |
| for (int i37 = i36 - 1; |
| i37 <= i36 + 1; |
| i37++) |
| for (int i38 = i37 - 1; i38 <= i37 + 1; i38++) |
| for (int i39 = i38 - 1; i39 <= i38 + 1; i39++) |
| for (int i40 = i39 - 1; i40 <= i39 + 1; i40++) |
| for (int i41 = i40 - 1; i41 <= i40 + 1; i41++) |
| for (int i42 = i41 - 1; i42 <= i41 + 1; i42++) |
| for (int i43 = i42 - 1; i43 <= i42 + 1; i43++) |
| for (int i44 = i43 - 1; i44 <= i43 + 1; i44++) |
| for (int i45 = i44 - 1; i45 <= i44 + 1; i45++) |
| for (int i46 = i45 - 1; i46 <= i45 + 1; i46++) |
| for (int i47 = i46 - 1; i47 <= i46 + 1; i47++) |
| for (int i48 = i47 - 1; i48 <= i47 + 1; i48++) |
| for (int i49 = i48 - 1; i49 <= i48 + 1; i49++) |
| for (int i50 = i49 - 1; i50 <= i49 + 1; i50++) |
| for (int i51 = i50 - 1; i51 <= i50 + 1; i51++) |
| for (int i52 = i51 - 1; i52 <= i51 + 1; i52++) |
| for (int i53 = i52 - 1; i53 <= i52 + 1; i53++) |
| for (int i54 = i53 - 1; i54 <= i53 + 1; i54++) |
| for (int i55 = i54 - 1; i55 <= i54 + 1; i55++) |
| for (int i56 = i55 - 1; i56 <= i55 + 1; i56++) |
| for (int i57 = i56 - 1; i57 <= i56 + 1; i57++) |
| for (int i58 = i57 - 1; i58 <= i57 + 1; i58++) |
| for (int i59 = i58 - 1; i59 <= i58 + 1; i59++) |
| for (int i60 = i59 - 1; i60 <= i59 + 1; i60++) |
| for (int i61 = i60 - 1; i61 <= i60 + 1; i61++) |
| for (int i62 = i61 - 1; i62 <= i61 + 1; i62++) |
| for (int i63 = i62 - 1; i63 <= i62 + 1; i63++) |
| for (int i64 = i63 - 1; i64 <= i63 + 1; i64++) |
| for (int i65 = i64 - 1; i65 <= i64 + 1; i65++) |
| for (int i66 = i65 - 1; i66 <= i65 + 1; i66++) |
| for (int i67 = i66 - 1; i67 <= i66 + 1; i67++) |
| for (int i68 = i67 - 1; i68 <= i67 + 1; i68++) |
| for (int i69 = i68 - 1; i69 <= i68 + 1; i69++) |
| for (int i70 = i69 - 1; i70 <= i69 + 1; i70++) |
| for (int i71 = i70 - 1; i71 <= i70 + 1; i71++) |
| for (int i72 = i71 - 1; i72 <= i71 + 1; i72++) |
| for (int i73 = i72 - 1; i73 <= i72 + 1; i73++) |
| for (int i74 = i73 - 1; i74 <= i73 + 1; i74++) |
| for (int i75 = i74 - 1; i75 <= i74 + 1; i75++) |
| for (int i76 = i75 - 1; i76 <= i75 + 1; i76++) |
| for (int i77 = i76 - 1; i77 <= i76 + 1; i77++) |
| for (int i78 = i77 - 1; i78 <= i77 + 1; i78++) |
| for (int i79 = i78 - 1; i79 <= i78 + 1; i79++) |
| for (int i80 = i79 - 1; i80 <= i79 + 1; i80++) |
| for (int i81 = i80 - 1; i81 <= i80 + 1; i81++) |
| for (int i82 = i81 - 1; i82 <= i81 + 1; i82++) |
| for (int i83 = i82 - 1; i83 <= i82 + 1; i83++) |
| for (int i84 = i83 - 1; i84 <= i83 + 1; i84++) |
| for (int i85 = i84 - 1; i85 <= i84 + 1; i85++) |
| for (int i86 = i85 - 1; i86 <= i85 + 1; i86++) |
| for (int i87 = i86 - 1; i87 <= i86 + 1; i87++) |
| for (int i88 = i87 - 1; i88 <= i87 + 1; i88++) |
| for (int i89 = i88 - 1; i89 <= i88 + 1; i89++) |
| for (int i90 = i89 - 1; i90 <= i89 + 1; i90++) |
| for (int i91 = i90 - 1; i91 <= i90 + 1; i91++) |
| for (int i92 = i91 - 1; i92 <= i91 + 1; i92++) |
| for (int i93 = i92 - 1; i93 <= i92 + 1; i93++) |
| for (int i94 = i93 - 1; i94 <= i93 + 1; i94++) |
| for (int i95 = i94 - 1; i95 <= i94 + 1; i95++) |
| for (int i96 = i95 - 1; i96 <= i95 + 1; i96++) |
| for (int i97 = i96 - 1; i97 <= i96 + 1; i97++) |
| for (int i98 = i97 - 1; i98 <= i97 + 1; i98++) |
| for (int i99 = i98 - 1; i99 <= i98 + 1; i99++) |
| for (int i100 = i99 - 1; i100 <= i99 + 1; i100++) { |
| // Range [0,a.length). |
| a[i100] += 1; |
| } |
| } |
| |
| @pragma("vm:never-inline") |
| bar(List<int> a) { |
| for (int i0 = a.length - 101; i0 >= 100; i0--) |
| for (int i1 = i0 + 1; i1 >= i0 - 1; i1--) |
| for (int i2 = i1 + 1; i2 >= i1 - 1; i2--) |
| for (int i3 = i2 + 1; i3 >= i2 - 1; i3--) |
| for (int i4 = i3 + 1; i4 >= i3 - 1; i4--) |
| for (int i5 = i4 + 1; i5 >= i4 - 1; i5--) |
| for (int i6 = i5 + 1; i6 >= i5 - 1; i6--) |
| for (int i7 = i6 + 1; i7 >= i6 - 1; i7--) |
| for (int i8 = i7 + 1; i8 >= i7 - 1; i8--) |
| for (int i9 = i8 + 1; i9 >= i8 - 1; i9--) |
| for (int i10 = i9 + 1; i10 >= i9 - 1; i10--) |
| for (int i11 = i10 + 1; i11 >= i10 - 1; i11--) |
| for (int i12 = i11 + 1; i12 >= i11 - 1; i12--) |
| for (int i13 = i12 + 1; i13 >= i12 - 1; i13--) |
| for (int i14 = i13 + 1; i14 >= i13 - 1; i14--) |
| for (int i15 = i14 + 1; i15 >= i14 - 1; i15--) |
| for (int i16 = i15 + 1; i16 >= i15 - 1; i16--) |
| for (int i17 = i16 + 1; |
| i17 >= i16 - 1; |
| i17--) |
| for (int i18 = i17 + 1; |
| i18 >= i17 - 1; |
| i18--) |
| for (int i19 = i18 + 1; |
| i19 >= i18 - 1; |
| i19--) |
| for (int i20 = i19 + 1; |
| i20 >= i19 - 1; |
| i20--) |
| for (int i21 = i20 + 1; |
| i21 >= i20 - 1; |
| i21--) |
| for (int i22 = i21 + 1; |
| i22 >= i21 - 1; |
| i22--) |
| for (int i23 = i22 + 1; |
| i23 >= i22 - 1; |
| i23--) |
| for (int i24 = i23 + 1; |
| i24 >= i23 - 1; |
| i24--) |
| for (int i25 = i24 + 1; |
| i25 >= i24 - 1; |
| i25--) |
| for (int i26 = i25 + 1; |
| i26 >= i25 - 1; |
| i26--) |
| for (int i27 = i26 + 1; |
| i27 >= i26 - 1; |
| i27--) |
| for (int i28 = |
| i27 + 1; |
| i28 >= i27 - 1; |
| i28--) |
| for (int i29 = |
| i28 + 1; |
| i29 >= i28 - 1; |
| i29--) |
| for (int i30 = |
| i29 + 1; |
| i30 >= |
| i29 - 1; |
| i30--) |
| for (int i31 = |
| i30 + 1; |
| i31 >= |
| i30 - 1; |
| i31--) |
| for (int i32 = |
| i31 + |
| 1; |
| i32 >= |
| i31 - |
| 1; |
| i32--) |
| for (int i33 = |
| i32 + |
| 1; |
| i33 >= |
| i32 - |
| 1; |
| i33--) |
| for (int i34 = i33 + |
| 1; |
| i34 >= |
| i33 - 1; |
| i34--) |
| for (int i35 = i34 + |
| 1; |
| i35 >= |
| i34 - 1; |
| i35--) |
| for (int i36 = i35 + 1; |
| i36 >= i35 - 1; |
| i36--) |
| for (int i37 = i36 + 1; |
| i37 >= i36 - 1; |
| i37--) |
| for (int i38 = i37 + 1; i38 >= i37 - 1; i38--) |
| for (int i39 = i38 + 1; i39 >= i38 - 1; i39--) |
| for (int i40 = i39 + 1; i40 >= i39 - 1; i40--) |
| for (int i41 = i40 + 1; i41 >= i40 - 1; i41--) |
| for (int i42 = i41 + 1; i42 >= i41 - 1; i42--) |
| for (int i43 = i42 + 1; i43 >= i42 - 1; i43--) |
| for (int i44 = i43 + 1; i44 >= i43 - 1; i44--) |
| for (int i45 = i44 + 1; i45 >= i44 - 1; i45--) |
| for (int i46 = i45 + 1; i46 >= i45 - 1; i46--) |
| for (int i47 = i46 + 1; i47 >= i46 - 1; i47--) |
| for (int i48 = i47 + 1; i48 >= i47 - 1; i48--) |
| for (int i49 = i48 + 1; i49 >= i48 - 1; i49--) |
| for (int i50 = i49 + 1; i50 >= i49 - 1; i50--) |
| for (int i51 = i50 + 1; i51 >= i50 - 1; i51--) |
| for (int i52 = i51 + 1; i52 >= i51 - 1; i52--) |
| for (int i53 = i52 + 1; i53 >= i52 - 1; i53--) |
| for (int i54 = i53 + 1; i54 >= i53 - 1; i54--) |
| for (int i55 = i54 + 1; i55 >= i54 - 1; i55--) |
| for (int i56 = i55 + 1; i56 >= i55 - 1; i56--) |
| for (int i57 = i56 + 1; i57 >= i56 - 1; i57--) |
| for (int i58 = i57 + 1; i58 >= i57 - 1; i58--) |
| for (int i59 = i58 + 1; i59 >= i58 - 1; i59--) |
| for (int i60 = i59 + 1; i60 >= i59 - 1; i60--) |
| for (int i61 = i60 + 1; i61 >= i60 - 1; i61--) |
| for (int i62 = i61 + 1; i62 >= i61 - 1; i62--) |
| for (int i63 = i62 + 1; i63 >= i62 - 1; i63--) |
| for (int i64 = i63 + 1; i64 >= i63 - 1; i64--) |
| for (int i65 = i64 + 1; i65 >= i64 - 1; i65--) |
| for (int i66 = i65 + 1; i66 >= i65 - 1; i66--) |
| for (int i67 = i66 + 1; i67 >= i66 - 1; i67--) |
| for (int i68 = i67 + 1; i68 >= i67 - 1; i68--) |
| for (int i69 = i68 + 1; i69 >= i68 - 1; i69--) |
| for (int i70 = i69 + 1; i70 >= i69 - 1; i70--) |
| for (int i71 = i70 + 1; i71 >= i70 - 1; i71--) |
| for (int i72 = i71 + 1; i72 >= i71 - 1; i72--) |
| for (int i73 = i72 + 1; i73 >= i72 - 1; i73--) |
| for (int i74 = i73 + 1; i74 >= i73 - 1; i74--) |
| for (int i75 = i74 + 1; i75 >= i74 - 1; i75--) |
| for (int i76 = i75 + 1; i76 >= i75 - 1; i76--) |
| for (int i77 = i76 + 1; i77 >= i76 - 1; i77--) |
| for (int i78 = i77 + 1; i78 >= i77 - 1; i78--) |
| for (int i79 = i78 + 1; i79 >= i78 - 1; i79--) |
| for (int i80 = i79 + 1; i80 >= i79 - 1; i80--) |
| for (int i81 = i80 + 1; i81 >= i80 - 1; i81--) |
| for (int i82 = i81 + 1; i82 >= i81 - 1; i82--) |
| for (int i83 = i82 + 1; i83 >= i82 - 1; i83--) |
| for (int i84 = i83 + 1; i84 >= i83 - 1; i84--) |
| for (int i85 = i84 + 1; i85 >= i84 - 1; i85--) |
| for (int i86 = i85 + 1; i86 >= i85 - 1; i86--) |
| for (int i87 = i86 + 1; i87 >= i86 - 1; i87--) |
| for (int i88 = i87 + 1; i88 >= i87 - 1; i88--) |
| for (int i89 = i88 + 1; i89 >= i88 - 1; i89--) |
| for (int i90 = i89 + 1; i90 >= i89 - 1; i90--) |
| for (int i91 = i90 + 1; i91 >= i90 - 1; i91--) |
| for (int i92 = i91 + 1; i92 >= i91 - 1; i92--) |
| for (int i93 = i92 + 1; i93 >= i92 - 1; i93--) |
| for (int i94 = i93 + 1; i94 >= i93 - 1; i94--) |
| for (int i95 = i94 + 1; i95 >= i94 - 1; i95--) |
| for (int i96 = i95 + 1; i96 >= i95 - 1; i96--) |
| for (int i97 = i96 + 1; i97 >= i96 - 1; i97--) |
| for (int i98 = i97 + 1; i98 >= i97 - 1; i98--) |
| for (int i99 = i98 + 1; i99 >= i98 - 1; i99--) |
| for (int i100 = i99 + 1; i100 >= i99 - 1; i100--) { |
| // Range [0,a.length). |
| a[i100] += 1; |
| } |
| } |
| |
| main() { |
| // To avoid executing the deep loops completely, we pass in a list |
| // with null values, so that each first iteration throws an exception. |
| List<int> a = new List<int>(300); |
| int tryCallingPlusOnNull = 0; |
| try { |
| foo(a); |
| } on NoSuchMethodError catch (e) { |
| ++tryCallingPlusOnNull; |
| } |
| try { |
| bar(a); |
| } on NoSuchMethodError catch (e) { |
| ++tryCallingPlusOnNull; |
| } |
| Expect.equals(2, tryCallingPlusOnNull); |
| } |
