| // Copyright (c) 2014, 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. |
| |
| #include "vm/compiler/backend/range_analysis.h" |
| #include "vm/unit_test.h" |
| |
| namespace dart { |
| |
| TEST_CASE(RangeTests) { |
| Range* zero = |
| new Range(RangeBoundary::FromConstant(0), RangeBoundary::FromConstant(0)); |
| Range* positive = new Range(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(100)); |
| Range* negative = new Range(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(-100)); |
| Range* range_x = new Range(RangeBoundary::FromConstant(-15), |
| RangeBoundary::FromConstant(100)); |
| EXPECT(positive->IsPositive()); |
| EXPECT(zero->Overlaps(0, 0)); |
| EXPECT(positive->Overlaps(0, 0)); |
| EXPECT(!negative->Overlaps(0, 0)); |
| EXPECT(range_x->Overlaps(0, 0)); |
| EXPECT(range_x->IsWithin(-15, 100)); |
| EXPECT(!range_x->IsWithin(-15, 99)); |
| EXPECT(!range_x->IsWithin(-14, 100)); |
| |
| #define TEST_RANGE_OP_(Op, l_min, l_max, r_min, r_max, Clamp, res_min, \ |
| res_max) \ |
| { \ |
| RangeBoundary min, max; \ |
| Range* left_range = new Range(RangeBoundary::FromConstant(l_min), \ |
| RangeBoundary::FromConstant(l_max)); \ |
| Range* shift_range = new Range(RangeBoundary::FromConstant(r_min), \ |
| RangeBoundary::FromConstant(r_max)); \ |
| Op(left_range, shift_range, &min, &max); \ |
| min = Clamp(min); \ |
| max = Clamp(max); \ |
| EXPECT(min.Equals(res_min)); \ |
| if (FLAG_support_il_printer && !min.Equals(res_min)) { \ |
| OS::PrintErr("%s\n", min.ToCString()); \ |
| } \ |
| EXPECT(max.Equals(res_max)); \ |
| if (FLAG_support_il_printer && !max.Equals(res_max)) { \ |
| OS::PrintErr("%s\n", max.ToCString()); \ |
| } \ |
| } |
| |
| #define NO_CLAMP(b) (b) |
| #define TEST_RANGE_OP(Op, l_min, l_max, r_min, r_max, result_min, result_max) \ |
| TEST_RANGE_OP_(Op, l_min, l_max, r_min, r_max, NO_CLAMP, result_min, \ |
| result_max) |
| |
| #define CLAMP_TO_SMI(b) (b.Clamp(RangeBoundary::kRangeBoundarySmi)) |
| #define TEST_RANGE_OP_SMI(Op, l_min, l_max, r_min, r_max, res_min, res_max) \ |
| TEST_RANGE_OP_(Op, l_min, l_max, r_min, r_max, CLAMP_TO_SMI, res_min, res_max) |
| |
| TEST_RANGE_OP(Range::Shl, -15, 100, 0, 2, RangeBoundary(-60), |
| RangeBoundary(400)); |
| TEST_RANGE_OP(Range::Shl, -15, 100, -2, 2, RangeBoundary(-60), |
| RangeBoundary(400)); |
| TEST_RANGE_OP(Range::Shl, -15, -10, 1, 2, RangeBoundary(-60), |
| RangeBoundary(-20)); |
| TEST_RANGE_OP(Range::Shl, 5, 10, -2, 2, RangeBoundary(5), RangeBoundary(40)); |
| TEST_RANGE_OP(Range::Shl, -15, 100, 0, 64, RangeBoundary::NegativeInfinity(), |
| RangeBoundary::PositiveInfinity()); |
| TEST_RANGE_OP(Range::Shl, -1, 1, 63, 63, RangeBoundary(kMinInt64), |
| RangeBoundary::PositiveInfinity()); |
| if (kBitsPerWord == 64) { |
| TEST_RANGE_OP_SMI(Range::Shl, -1, 1, 62, 62, RangeBoundary(kSmiMin), |
| RangeBoundary(kSmiMax)); |
| TEST_RANGE_OP_SMI(Range::Shl, -1, 1, 30, 30, RangeBoundary(-(1 << 30)), |
| RangeBoundary(1 << 30)); |
| } else { |
| TEST_RANGE_OP_SMI(Range::Shl, -1, 1, 30, 30, RangeBoundary(kSmiMin), |
| RangeBoundary(kSmiMax)); |
| TEST_RANGE_OP_SMI(Range::Shl, -1, 1, 62, 62, RangeBoundary(kSmiMin), |
| RangeBoundary(kSmiMax)); |
| } |
| TEST_RANGE_OP(Range::Shl, 0, 100, 0, 64, RangeBoundary(0), |
| RangeBoundary::PositiveInfinity()); |
| TEST_RANGE_OP(Range::Shl, -100, 0, 0, 64, RangeBoundary::NegativeInfinity(), |
| RangeBoundary(0)); |
| |
| TEST_RANGE_OP(Range::Shr, -8, 8, 1, 2, RangeBoundary(-4), RangeBoundary(4)); |
| TEST_RANGE_OP(Range::Shr, 1, 8, 1, 2, RangeBoundary(0), RangeBoundary(4)); |
| TEST_RANGE_OP(Range::Shr, -16, -8, 1, 2, RangeBoundary(-8), |
| RangeBoundary(-2)); |
| TEST_RANGE_OP(Range::Shr, 2, 4, -1, 1, RangeBoundary(1), RangeBoundary(4)); |
| TEST_RANGE_OP(Range::Shr, kMaxInt64, kMaxInt64, 0, 1, |
| RangeBoundary(kMaxInt64 >> 1), RangeBoundary(kMaxInt64)); |
| TEST_RANGE_OP(Range::Shr, kMinInt64, kMinInt64, 0, 1, |
| RangeBoundary(kMinInt64), RangeBoundary(kMinInt64 >> 1)); |
| #undef TEST_RANGE_OP |
| } |
| |
| TEST_CASE(RangeTestsInfinity) { |
| // +/- inf overflowed. |
| EXPECT(RangeBoundary::NegativeInfinity().OverflowedSmi()); |
| EXPECT(RangeBoundary::PositiveInfinity().OverflowedSmi()); |
| |
| EXPECT(RangeBoundary::NegativeInfinity().OverflowedMint()); |
| EXPECT(RangeBoundary::PositiveInfinity().OverflowedMint()); |
| |
| const Range fullInt64Range = Range::Full(RangeBoundary::kRangeBoundaryInt64); |
| |
| Range* all = new Range(RangeBoundary::NegativeInfinity(), |
| RangeBoundary::PositiveInfinity()); |
| EXPECT(all->Equals(&fullInt64Range)); |
| EXPECT(all->Overlaps(0, 0)); |
| EXPECT(all->Overlaps(-1, 1)); |
| EXPECT(!all->IsWithin(0, 100)); |
| |
| Range* positive = new Range(RangeBoundary::FromConstant(0), |
| RangeBoundary::PositiveInfinity()); |
| EXPECT(positive->Equals(&fullInt64Range)); |
| EXPECT(positive->Overlaps(0, 1)); |
| EXPECT(positive->Overlaps(1, 100)); |
| EXPECT(positive->Overlaps(-1, 0)); |
| |
| Range* negative = new Range(RangeBoundary::NegativeInfinity(), |
| RangeBoundary::FromConstant(-1)); |
| EXPECT(positive->Equals(&fullInt64Range)); |
| EXPECT(negative->Overlaps(-1, 0)); |
| EXPECT(negative->Overlaps(-2, -1)); |
| |
| Range* negpos = new Range(RangeBoundary::NegativeInfinity(), |
| RangeBoundary::FromConstant(0)); |
| EXPECT(negpos->Equals(&fullInt64Range)); |
| EXPECT(!negpos->IsPositive()); |
| |
| Range* a = new Range(RangeBoundary::NegativeInfinity(), |
| RangeBoundary::FromConstant(1)); |
| |
| Range* b = new Range(RangeBoundary::NegativeInfinity(), |
| RangeBoundary::FromConstant(31)); |
| |
| Range* c = new Range(RangeBoundary::NegativeInfinity(), |
| RangeBoundary::FromConstant(32)); |
| |
| EXPECT(a->Equals(&fullInt64Range)); |
| EXPECT(b->Equals(&fullInt64Range)); |
| EXPECT(c->Equals(&fullInt64Range)); |
| EXPECT(!c->OnlyLessThanOrEqualTo(31)); |
| |
| Range* unsatisfiable = new Range(RangeBoundary::PositiveInfinity(), |
| RangeBoundary::NegativeInfinity()); |
| EXPECT(unsatisfiable->Equals(&fullInt64Range)); |
| |
| Range* unsatisfiable_right = new Range(RangeBoundary::PositiveInfinity(), |
| RangeBoundary::FromConstant(0)); |
| EXPECT(unsatisfiable_right->Equals(&fullInt64Range)); |
| |
| Range* unsatisfiable_left = new Range(RangeBoundary::FromConstant(0), |
| RangeBoundary::NegativeInfinity()); |
| EXPECT(unsatisfiable_left->Equals(&fullInt64Range)); |
| } |
| |
| TEST_CASE(RangeUtils) { |
| // Use kMin/kMax instead of +/-inf as any range with a +/-inf bound is |
| // converted to the full int64 range due to wrap-around. |
| const RangeBoundary negativeInfinity = |
| RangeBoundary::FromConstant(RangeBoundary::kMin); |
| const RangeBoundary positiveInfinity = |
| RangeBoundary::FromConstant(RangeBoundary::kMax); |
| |
| // [-inf, +inf]. |
| const Range& range_0 = *(new Range(negativeInfinity, positiveInfinity)); |
| // [-inf, -1]. |
| const Range& range_a = |
| *(new Range(negativeInfinity, RangeBoundary::FromConstant(-1))); |
| // [-inf, 0]. |
| const Range& range_b = |
| *(new Range(negativeInfinity, RangeBoundary::FromConstant(0))); |
| // [-inf, 1]. |
| const Range& range_c = |
| *(new Range(negativeInfinity, RangeBoundary::FromConstant(1))); |
| // [-1, +inf] |
| const Range& range_d = |
| *(new Range(RangeBoundary::FromConstant(-1), positiveInfinity)); |
| // [0, +inf] |
| const Range& range_e = |
| *(new Range(RangeBoundary::FromConstant(0), positiveInfinity)); |
| // [1, +inf]. |
| const Range& range_f = |
| *(new Range(RangeBoundary::FromConstant(1), positiveInfinity)); |
| // [1, 2]. |
| const Range& range_g = *(new Range(RangeBoundary::FromConstant(1), |
| RangeBoundary::FromConstant(2))); |
| // [-1, -2]. |
| const Range& range_h = *(new Range(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(-2))); |
| // [-1, 1]. |
| const Range& range_i = *(new Range(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(1))); |
| |
| // OnlyPositiveOrZero. |
| EXPECT(!Range::OnlyPositiveOrZero(range_a, range_b)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_b, range_c)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_c, range_d)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_d, range_e)); |
| EXPECT(Range::OnlyPositiveOrZero(range_e, range_f)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_d, range_d)); |
| EXPECT(Range::OnlyPositiveOrZero(range_e, range_e)); |
| EXPECT(Range::OnlyPositiveOrZero(range_f, range_g)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_g, range_h)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_i, range_i)); |
| |
| // OnlyNegativeOrZero. |
| EXPECT(Range::OnlyNegativeOrZero(range_a, range_b)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_b, range_c)); |
| EXPECT(Range::OnlyNegativeOrZero(range_b, range_b)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_c, range_c)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_c, range_d)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_d, range_e)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_e, range_f)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_f, range_g)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_g, range_h)); |
| EXPECT(Range::OnlyNegativeOrZero(range_h, range_h)); |
| EXPECT(!Range::OnlyNegativeOrZero(range_i, range_i)); |
| |
| // [-inf, +inf]. |
| EXPECT(!Range::OnlyNegativeOrZero(range_0, range_0)); |
| EXPECT(!Range::OnlyPositiveOrZero(range_0, range_0)); |
| |
| EXPECT(Range::ConstantAbsMax(&range_0) == RangeBoundary::kMax); |
| EXPECT(Range::ConstantAbsMax(&range_h) == 2); |
| EXPECT(Range::ConstantAbsMax(&range_i) == 1); |
| |
| // RangeBOundary.Equals. |
| EXPECT(RangeBoundary::FromConstant(1).Equals(RangeBoundary::FromConstant(1))); |
| EXPECT( |
| !RangeBoundary::FromConstant(2).Equals(RangeBoundary::FromConstant(1))); |
| EXPECT(RangeBoundary::PositiveInfinity().Equals( |
| RangeBoundary::PositiveInfinity())); |
| EXPECT(!RangeBoundary::PositiveInfinity().Equals( |
| RangeBoundary::NegativeInfinity())); |
| EXPECT(RangeBoundary::NegativeInfinity().Equals( |
| RangeBoundary::NegativeInfinity())); |
| EXPECT(!RangeBoundary::NegativeInfinity().Equals( |
| RangeBoundary::PositiveInfinity())); |
| EXPECT(!RangeBoundary::FromConstant(1).Equals( |
| RangeBoundary::NegativeInfinity())); |
| EXPECT(!RangeBoundary::FromConstant(1).Equals( |
| RangeBoundary::NegativeInfinity())); |
| EXPECT(!RangeBoundary::FromConstant(2).Equals( |
| RangeBoundary::PositiveInfinity())); |
| } |
| |
| TEST_CASE(RangeBinaryOp) { |
| Range* range_a = new Range(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(RangeBoundary::kMax)); |
| range_a->Clamp(RangeBoundary::kRangeBoundaryInt32); |
| EXPECT(range_a->min().ConstantValue() == -1); |
| EXPECT(range_a->max().ConstantValue() == kMaxInt32); |
| range_a->set_max(RangeBoundary::FromConstant(RangeBoundary::kMax)); |
| |
| Range* range_b = new Range(RangeBoundary::FromConstant(RangeBoundary::kMin), |
| RangeBoundary::FromConstant(1)); |
| range_b->Clamp(RangeBoundary::kRangeBoundaryInt32); |
| EXPECT(range_b->min().ConstantValue() == kMinInt32); |
| EXPECT(range_b->max().ConstantValue() == 1); |
| range_b->set_min(RangeBoundary::FromConstant(RangeBoundary::kMin)); |
| |
| { |
| Range result; |
| Range::BinaryOp(Token::kADD, range_a, range_b, NULL, &result); |
| ASSERT(!Range::IsUnknown(&result)); |
| EXPECT(!result.min().IsNegativeInfinity()); |
| EXPECT(!result.max().IsPositiveInfinity()); |
| EXPECT(result.min().Equals( |
| RangeBoundary::MinConstant(RangeBoundary::kRangeBoundaryInt64))); |
| EXPECT(result.max().Equals( |
| RangeBoundary::MaxConstant(RangeBoundary::kRangeBoundaryInt64))); |
| } |
| |
| // Test that [5, 10] + [0, 5] = [5, 15]. |
| Range* range_c = new Range(RangeBoundary::FromConstant(5), |
| RangeBoundary::FromConstant(10)); |
| Range* range_d = |
| new Range(RangeBoundary::FromConstant(0), RangeBoundary::FromConstant(5)); |
| |
| { |
| Range result; |
| Range::BinaryOp(Token::kADD, range_c, range_d, NULL, &result); |
| ASSERT(!Range::IsUnknown(&result)); |
| EXPECT(result.min().ConstantValue() == 5); |
| EXPECT(result.max().ConstantValue() == 15); |
| } |
| |
| // Test that [0xff, 0xfff] & [0xf, 0xf] = [0x0, 0xf]. |
| Range* range_e = new Range(RangeBoundary::FromConstant(0xff), |
| RangeBoundary::FromConstant(0xfff)); |
| Range* range_f = new Range(RangeBoundary::FromConstant(0xf), |
| RangeBoundary::FromConstant(0xf)); |
| { |
| Range result; |
| Range::BinaryOp(Token::kBIT_AND, range_e, range_f, NULL, &result); |
| ASSERT(!Range::IsUnknown(&result)); |
| EXPECT(result.min().ConstantValue() == 0x0); |
| EXPECT(result.max().ConstantValue() == 0xf); |
| } |
| } |
| |
| TEST_CASE(RangeAdd) { |
| #define TEST_RANGE_ADD(l_min, l_max, r_min, r_max, result_min, result_max) \ |
| { \ |
| RangeBoundary min, max; \ |
| Range* left_range = new Range(RangeBoundary::FromConstant(l_min), \ |
| RangeBoundary::FromConstant(l_max)); \ |
| Range* right_range = new Range(RangeBoundary::FromConstant(r_min), \ |
| RangeBoundary::FromConstant(r_max)); \ |
| EXPECT(left_range->min().ConstantValue() == l_min); \ |
| EXPECT(left_range->max().ConstantValue() == l_max); \ |
| EXPECT(right_range->min().ConstantValue() == r_min); \ |
| EXPECT(right_range->max().ConstantValue() == r_max); \ |
| Range::Add(left_range, right_range, &min, &max, NULL); \ |
| EXPECT(min.Equals(result_min)); \ |
| if (FLAG_support_il_printer && !min.Equals(result_min)) { \ |
| OS::PrintErr("%s != %s\n", min.ToCString(), result_min.ToCString()); \ |
| } \ |
| EXPECT(max.Equals(result_max)); \ |
| if (FLAG_support_il_printer && !max.Equals(result_max)) { \ |
| OS::PrintErr("%s != %s\n", max.ToCString(), result_max.ToCString()); \ |
| } \ |
| } |
| |
| // [kMaxInt32, kMaxInt32 + 15] + [10, 20] = [kMaxInt32 + 10, kMaxInt32 + 35]. |
| TEST_RANGE_ADD(static_cast<int64_t>(kMaxInt32), |
| static_cast<int64_t>(kMaxInt32) + 15, static_cast<int64_t>(10), |
| static_cast<int64_t>(20), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 10), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 35)); |
| |
| // [kMaxInt32 - 15, kMaxInt32 + 15] + [15, -15] = [kMaxInt32, kMaxInt32]. |
| TEST_RANGE_ADD(static_cast<int64_t>(kMaxInt32) - 15, |
| static_cast<int64_t>(kMaxInt32) + 15, static_cast<int64_t>(15), |
| static_cast<int64_t>(-15), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32)), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32))); |
| |
| // [kMaxInt32, kMaxInt32 + 15] + [10, kMaxInt64] = [kMaxInt32 + 10, +inf]. |
| TEST_RANGE_ADD(static_cast<int64_t>(kMaxInt32), |
| static_cast<int64_t>(kMaxInt32) + 15, static_cast<int64_t>(10), |
| static_cast<int64_t>(kMaxInt64), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 10), |
| RangeBoundary::PositiveInfinity()); |
| |
| // [kMinInt64, kMaxInt32 + 15] + [10, 20] = [kMinInt64 + 10, kMaxInt32 + 35]. |
| TEST_RANGE_ADD(static_cast<int64_t>(kMinInt64), |
| static_cast<int64_t>(kMaxInt32) + 15, static_cast<int64_t>(10), |
| static_cast<int64_t>(20), |
| RangeBoundary(static_cast<int64_t>(kMinInt64) + 10), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 35)); |
| |
| // [0, 0] + [kMinInt64, kMaxInt64] = [kMinInt64, kMaxInt64]. |
| TEST_RANGE_ADD(static_cast<int64_t>(0), static_cast<int64_t>(0), |
| static_cast<int64_t>(kMinInt64), |
| static_cast<int64_t>(kMaxInt64), RangeBoundary(kMinInt64), |
| RangeBoundary(kMaxInt64)); |
| |
| // Overflows. |
| |
| // [-1, 1] + [kMinInt64, kMaxInt64] = [-inf, +inf]. |
| TEST_RANGE_ADD( |
| static_cast<int64_t>(-1), static_cast<int64_t>(1), |
| static_cast<int64_t>(kMinInt64), static_cast<int64_t>(kMaxInt64), |
| RangeBoundary::NegativeInfinity(), RangeBoundary::PositiveInfinity()); |
| |
| // [kMaxInt64, kMaxInt64] + [kMaxInt64, kMaxInt64] = [-inf, +inf]. |
| TEST_RANGE_ADD( |
| static_cast<int64_t>(kMaxInt64), static_cast<int64_t>(kMaxInt64), |
| static_cast<int64_t>(kMaxInt64), static_cast<int64_t>(kMaxInt64), |
| RangeBoundary::NegativeInfinity(), RangeBoundary::PositiveInfinity()); |
| |
| // [kMaxInt64, kMaxInt64] + [1, 1] = [-inf, +inf]. |
| TEST_RANGE_ADD(static_cast<int64_t>(kMaxInt64), |
| static_cast<int64_t>(kMaxInt64), static_cast<int64_t>(1), |
| static_cast<int64_t>(1), RangeBoundary::NegativeInfinity(), |
| RangeBoundary::PositiveInfinity()); |
| |
| #undef TEST_RANGE_ADD |
| } |
| |
| TEST_CASE(RangeSub) { |
| #define TEST_RANGE_SUB(l_min, l_max, r_min, r_max, result_min, result_max) \ |
| { \ |
| RangeBoundary min, max; \ |
| Range* left_range = new Range(RangeBoundary::FromConstant(l_min), \ |
| RangeBoundary::FromConstant(l_max)); \ |
| Range* right_range = new Range(RangeBoundary::FromConstant(r_min), \ |
| RangeBoundary::FromConstant(r_max)); \ |
| EXPECT(left_range->min().ConstantValue() == l_min); \ |
| EXPECT(left_range->max().ConstantValue() == l_max); \ |
| EXPECT(right_range->min().ConstantValue() == r_min); \ |
| EXPECT(right_range->max().ConstantValue() == r_max); \ |
| Range::Sub(left_range, right_range, &min, &max, NULL); \ |
| EXPECT(min.Equals(result_min)); \ |
| if (FLAG_support_il_printer && !min.Equals(result_min)) { \ |
| OS::PrintErr("%s != %s\n", min.ToCString(), result_min.ToCString()); \ |
| } \ |
| EXPECT(max.Equals(result_max)); \ |
| if (FLAG_support_il_printer && !max.Equals(result_max)) { \ |
| OS::PrintErr("%s != %s\n", max.ToCString(), result_max.ToCString()); \ |
| } \ |
| } |
| |
| // [kMaxInt32, kMaxInt32 + 15] - [10, 20] = [kMaxInt32 - 20, kMaxInt32 + 5]. |
| TEST_RANGE_SUB(static_cast<int64_t>(kMaxInt32), |
| static_cast<int64_t>(kMaxInt32) + 15, static_cast<int64_t>(10), |
| static_cast<int64_t>(20), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) - 20), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 5)); |
| |
| // [kMintInt64, kMintInt64] - [1, 1] = [-inf, +inf]. |
| TEST_RANGE_SUB(static_cast<int64_t>(kMinInt64), |
| static_cast<int64_t>(kMinInt64), static_cast<int64_t>(1), |
| static_cast<int64_t>(1), RangeBoundary::NegativeInfinity(), |
| RangeBoundary::PositiveInfinity()); |
| |
| // [1, 1] - [kMintInt64, kMintInt64] = [-inf, +inf]. |
| TEST_RANGE_SUB( |
| static_cast<int64_t>(1), static_cast<int64_t>(1), |
| static_cast<int64_t>(kMinInt64), static_cast<int64_t>(kMinInt64), |
| RangeBoundary::NegativeInfinity(), RangeBoundary::PositiveInfinity()); |
| |
| // [kMaxInt32 + 10, kMaxInt32 + 20] - [-20, -20] = |
| // [kMaxInt32 + 30, kMaxInt32 + 40]. |
| TEST_RANGE_SUB(static_cast<int64_t>(kMaxInt32) + 10, |
| static_cast<int64_t>(kMaxInt32) + 20, |
| static_cast<int64_t>(-20), static_cast<int64_t>(-20), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 30), |
| RangeBoundary(static_cast<int64_t>(kMaxInt32) + 40)); |
| |
| #undef TEST_RANGE_SUB |
| } |
| |
| TEST_CASE(RangeAnd) { |
| #define TEST_RANGE_AND(l_min, l_max, r_min, r_max, result_min, result_max) \ |
| { \ |
| RangeBoundary min, max; \ |
| Range* left_range = new Range(RangeBoundary::FromConstant(l_min), \ |
| RangeBoundary::FromConstant(l_max)); \ |
| Range* right_range = new Range(RangeBoundary::FromConstant(r_min), \ |
| RangeBoundary::FromConstant(r_max)); \ |
| EXPECT(left_range->min().ConstantValue() == l_min); \ |
| EXPECT(left_range->max().ConstantValue() == l_max); \ |
| EXPECT(right_range->min().ConstantValue() == r_min); \ |
| EXPECT(right_range->max().ConstantValue() == r_max); \ |
| Range::And(left_range, right_range, &min, &max); \ |
| EXPECT(min.Equals(result_min)); \ |
| if (FLAG_support_il_printer && !min.Equals(result_min)) { \ |
| OS::PrintErr("%s != %s\n", min.ToCString(), result_min.ToCString()); \ |
| } \ |
| EXPECT(max.Equals(result_max)); \ |
| if (FLAG_support_il_printer && !max.Equals(result_max)) { \ |
| OS::PrintErr("%s != %s\n", max.ToCString(), result_max.ToCString()); \ |
| } \ |
| } |
| |
| // [0xff, 0xfff] & [0xf, 0xf] = [0x0, 0xf]. |
| TEST_RANGE_AND(static_cast<int64_t>(0xff), static_cast<int64_t>(0xfff), |
| static_cast<int64_t>(0xf), static_cast<int64_t>(0xf), |
| RangeBoundary(0), RangeBoundary(0xf)); |
| |
| // [0xffffffff, 0xffffffff] & [0xfffffffff, 0xfffffffff] = [0x0, 0xfffffffff]. |
| TEST_RANGE_AND( |
| static_cast<int64_t>(0xffffffff), static_cast<int64_t>(0xffffffff), |
| static_cast<int64_t>(0xfffffffff), static_cast<int64_t>(0xfffffffff), |
| RangeBoundary(0), RangeBoundary(static_cast<int64_t>(0xfffffffff))); |
| |
| // [0xffffffff, 0xffffffff] & [-20, 20] = [0x0, 0xffffffff]. |
| TEST_RANGE_AND(static_cast<int64_t>(0xffffffff), |
| static_cast<int64_t>(0xffffffff), static_cast<int64_t>(-20), |
| static_cast<int64_t>(20), RangeBoundary(0), |
| RangeBoundary(static_cast<int64_t>(0xffffffff))); |
| |
| // [-20, 20] & [0xffffffff, 0xffffffff] = [0x0, 0xffffffff]. |
| TEST_RANGE_AND(static_cast<int64_t>(-20), static_cast<int64_t>(20), |
| static_cast<int64_t>(0xffffffff), |
| static_cast<int64_t>(0xffffffff), RangeBoundary(0), |
| RangeBoundary(static_cast<int64_t>(0xffffffff))); |
| |
| // Test that [-20, 20] & [-20, 20] = [-32, 31]. |
| TEST_RANGE_AND(static_cast<int64_t>(-20), static_cast<int64_t>(20), |
| static_cast<int64_t>(-20), static_cast<int64_t>(20), |
| RangeBoundary(-32), RangeBoundary(31)); |
| |
| #undef TEST_RANGE_AND |
| } |
| |
| TEST_CASE(RangeIntersectionMinMax) { |
| // Test IntersectionMin and IntersectionMax methods which for constants are |
| // simply defined as Max/Min respectively. |
| |
| // Constants. |
| // MIN(0, 1) == 0 |
| EXPECT(RangeBoundary::IntersectionMax(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(1)) |
| .ConstantValue() == 0); |
| // MIN(0, -1) == -1 |
| EXPECT(RangeBoundary::IntersectionMax(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(-1)) |
| .ConstantValue() == -1); |
| |
| // MIN(1, 0) == 0 |
| EXPECT(RangeBoundary::IntersectionMax(RangeBoundary::FromConstant(1), |
| RangeBoundary::FromConstant(0)) |
| .ConstantValue() == 0); |
| // MIN(-1, 0) == -1 |
| EXPECT(RangeBoundary::IntersectionMax(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(0)) |
| .ConstantValue() == -1); |
| |
| // MAX(0, 1) == 1 |
| EXPECT(RangeBoundary::IntersectionMin(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(1)) |
| .ConstantValue() == 1); |
| |
| // MAX(0, -1) == 0 |
| EXPECT(RangeBoundary::IntersectionMin(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(-1)) |
| .ConstantValue() == 0); |
| |
| // MAX(1, 0) == 1 |
| EXPECT(RangeBoundary::IntersectionMin(RangeBoundary::FromConstant(1), |
| RangeBoundary::FromConstant(0)) |
| .ConstantValue() == 1); |
| // MAX(-1, 0) == 0 |
| EXPECT(RangeBoundary::IntersectionMin(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(0)) |
| .ConstantValue() == 0); |
| |
| RangeBoundary n_infinity = RangeBoundary::NegativeInfinity(); |
| RangeBoundary p_infinity = RangeBoundary::PositiveInfinity(); |
| |
| // Constants vs. infinity. |
| EXPECT(RangeBoundary::IntersectionMin(n_infinity, |
| RangeBoundary::FromConstant(-1)) |
| .ConstantValue() == -1); |
| |
| EXPECT(RangeBoundary::IntersectionMin(RangeBoundary::FromConstant(-1), |
| n_infinity) |
| .ConstantValue() == -1); |
| |
| EXPECT( |
| RangeBoundary::IntersectionMin(RangeBoundary::FromConstant(1), n_infinity) |
| .ConstantValue() == 1); |
| |
| EXPECT( |
| RangeBoundary::IntersectionMin(n_infinity, RangeBoundary::FromConstant(1)) |
| .ConstantValue() == 1); |
| |
| EXPECT(RangeBoundary::IntersectionMax(p_infinity, |
| RangeBoundary::FromConstant(-1)) |
| .ConstantValue() == -1); |
| |
| EXPECT(RangeBoundary::IntersectionMax(RangeBoundary::FromConstant(-1), |
| p_infinity) |
| .ConstantValue() == -1); |
| |
| EXPECT( |
| RangeBoundary::IntersectionMax(RangeBoundary::FromConstant(1), p_infinity) |
| .ConstantValue() == 1); |
| |
| EXPECT( |
| RangeBoundary::IntersectionMax(p_infinity, RangeBoundary::FromConstant(1)) |
| .ConstantValue() == 1); |
| } |
| |
| TEST_CASE(RangeJoinMinMax) { |
| // Test IntersectionMin and IntersectionMax methods which for constants are |
| // simply defined as Min/Max respectively. |
| const RangeBoundary::RangeSize size = RangeBoundary::kRangeBoundarySmi; |
| |
| // Constants. |
| EXPECT(RangeBoundary::JoinMax(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(1), size) |
| .ConstantValue() == 1); |
| EXPECT(RangeBoundary::JoinMax(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(-1), size) |
| .ConstantValue() == 0); |
| EXPECT(RangeBoundary::JoinMax(RangeBoundary::FromConstant(1), |
| RangeBoundary::FromConstant(0), size) |
| .ConstantValue() == 1); |
| EXPECT(RangeBoundary::JoinMax(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(0), size) |
| .ConstantValue() == 0); |
| EXPECT(RangeBoundary::JoinMin(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(1), size) |
| .ConstantValue() == 0); |
| EXPECT(RangeBoundary::JoinMin(RangeBoundary::FromConstant(0), |
| RangeBoundary::FromConstant(-1), size) |
| .ConstantValue() == -1); |
| EXPECT(RangeBoundary::JoinMin(RangeBoundary::FromConstant(1), |
| RangeBoundary::FromConstant(0), size) |
| .ConstantValue() == 0); |
| EXPECT(RangeBoundary::JoinMin(RangeBoundary::FromConstant(-1), |
| RangeBoundary::FromConstant(0), size) |
| .ConstantValue() == -1); |
| |
| RangeBoundary n_infinity = RangeBoundary::NegativeInfinity(); |
| RangeBoundary p_infinity = RangeBoundary::PositiveInfinity(); |
| |
| // Constants vs. infinity. |
| EXPECT( |
| RangeBoundary::JoinMin(n_infinity, RangeBoundary::FromConstant(-1), size) |
| .IsMinimumOrBelow(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMin(RangeBoundary::FromConstant(-1), n_infinity, size) |
| .IsMinimumOrBelow(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMin(RangeBoundary::FromConstant(1), n_infinity, size) |
| .IsMinimumOrBelow(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMin(n_infinity, RangeBoundary::FromConstant(1), size) |
| .IsMinimumOrBelow(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMax(p_infinity, RangeBoundary::FromConstant(-1), size) |
| .IsMaximumOrAbove(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMax(RangeBoundary::FromConstant(-1), p_infinity, size) |
| .IsMaximumOrAbove(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMax(RangeBoundary::FromConstant(1), p_infinity, size) |
| .IsMaximumOrAbove(size)); |
| |
| EXPECT( |
| RangeBoundary::JoinMax(p_infinity, RangeBoundary::FromConstant(1), size) |
| .IsMaximumOrAbove(size)); |
| } |
| |
| } // namespace dart |
