| // Copyright 2023 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "src/tint/lang/core/ir/switch.h" |
| |
| #include "gmock/gmock.h" |
| #include "src/tint/lang/core/ir/ir_helper_test.h" |
| |
| namespace tint::core::ir { |
| namespace { |
| |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| using IR_SwitchTest = IRTestHelper; |
| |
| TEST_F(IR_SwitchTest, Usage) { |
| auto* cond = b.Constant(true); |
| auto* switch_ = b.Switch(cond); |
| EXPECT_THAT(cond->Usages(), testing::UnorderedElementsAre(Usage{switch_, 0u})); |
| } |
| |
| TEST_F(IR_SwitchTest, Results) { |
| auto* cond = b.Constant(true); |
| auto* switch_ = b.Switch(cond); |
| EXPECT_TRUE(switch_->Results().IsEmpty()); |
| } |
| |
| TEST_F(IR_SwitchTest, Parent) { |
| auto* switch_ = b.Switch(1_i); |
| b.DefaultCase(switch_); |
| EXPECT_THAT(switch_->Cases().Front().block->Parent(), switch_); |
| } |
| |
| TEST_F(IR_SwitchTest, Clone) { |
| auto* switch_ = b.Switch(1_i); |
| b.Case(switch_, {nullptr, b.Constant(2_i)}); |
| b.Case(switch_, {b.Constant(3_i)}); |
| |
| auto* new_switch = clone_ctx.Clone(switch_); |
| |
| EXPECT_NE(switch_, new_switch); |
| |
| auto new_cond = new_switch->Condition()->As<Constant>()->Value(); |
| ASSERT_TRUE(new_cond->Is<core::constant::Scalar<i32>>()); |
| EXPECT_EQ(1_i, new_cond->As<core::constant::Scalar<i32>>()->ValueAs<i32>()); |
| |
| auto& cases = new_switch->Cases(); |
| ASSERT_EQ(2u, cases.Length()); |
| |
| { |
| auto& case1 = cases[0]; |
| EXPECT_NE(nullptr, case1.block); |
| EXPECT_NE(switch_->Cases()[0].block, case1.block); |
| EXPECT_EQ(case1.block->Parent(), new_switch); |
| |
| ASSERT_EQ(2u, case1.selectors.Length()); |
| EXPECT_EQ(nullptr, case1.selectors[0].val); |
| auto val = case1.selectors[1].val->Value(); |
| ASSERT_TRUE(val->Is<core::constant::Scalar<i32>>()); |
| EXPECT_EQ(2_i, val->As<core::constant::Scalar<i32>>()->ValueAs<i32>()); |
| } |
| |
| { |
| auto& case2 = cases[1]; |
| EXPECT_NE(nullptr, case2.block); |
| EXPECT_NE(switch_->Cases()[1].block, case2.block); |
| EXPECT_EQ(case2.block->Parent(), new_switch); |
| |
| ASSERT_EQ(1u, case2.selectors.Length()); |
| auto val = case2.selectors[0].val->Value(); |
| ASSERT_TRUE(val->Is<core::constant::Scalar<i32>>()); |
| EXPECT_EQ(3_i, val->As<core::constant::Scalar<i32>>()->ValueAs<i32>()); |
| } |
| } |
| |
| TEST_F(IR_SwitchTest, CloneWithExits) { |
| Switch* new_switch = nullptr; |
| { |
| auto* switch_ = b.Switch(1_i); |
| |
| auto* blk = b.Case(switch_, {b.Constant(3_i)}); |
| b.Append(blk, [&] { b.ExitSwitch(switch_); }); |
| new_switch = clone_ctx.Clone(switch_); |
| } |
| |
| auto& case_ = new_switch->Cases().Front(); |
| ASSERT_TRUE(case_.block->Front()->Is<ExitSwitch>()); |
| EXPECT_EQ(new_switch, case_.block->Front()->As<ExitSwitch>()->Switch()); |
| } |
| |
| TEST_F(IR_SwitchTest, CloneWithResults) { |
| Switch* new_switch = nullptr; |
| auto* r0 = b.InstructionResult(ty.i32()); |
| auto* r1 = b.InstructionResult(ty.f32()); |
| { |
| auto* switch_ = b.Switch(1_i); |
| switch_->SetResults(Vector{r0, r1}); |
| |
| auto* blk = b.Case(switch_, Vector{b.Constant(3_i)}); |
| b.Append(blk, [&] { b.ExitSwitch(switch_, b.Constant(42_i), b.Constant(42_f)); }); |
| new_switch = clone_ctx.Clone(switch_); |
| } |
| |
| ASSERT_EQ(2u, new_switch->Results().Length()); |
| auto* new_r0 = new_switch->Results()[0]->As<InstructionResult>(); |
| ASSERT_NE(new_r0, nullptr); |
| ASSERT_NE(new_r0, r0); |
| EXPECT_EQ(new_r0->Type(), ty.i32()); |
| auto* new_r1 = new_switch->Results()[1]->As<InstructionResult>(); |
| ASSERT_NE(new_r1, nullptr); |
| ASSERT_NE(new_r1, r1); |
| EXPECT_EQ(new_r1->Type(), ty.f32()); |
| } |
| |
| } // namespace |
| } // namespace tint::core::ir |