| // Copyright 2023 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "src/tint/writer/spirv/ir/test_helper_ir.h" |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| namespace tint::writer::spirv { |
| namespace { |
| |
| TEST_F(SpvGeneratorImplTest, If_TrueEmpty_FalseEmpty) { |
| auto* func = b.CreateFunction(mod.symbols.Register("foo"), mod.types.Get<type::Void>()); |
| |
| auto* i = b.CreateIf(b.Constant(true)); |
| b.Branch(i->true_.target->As<ir::Block>(), i->merge.target); |
| b.Branch(i->false_.target->As<ir::Block>(), i->merge.target); |
| b.Branch(i->merge.target->As<ir::Block>(), func->end_target); |
| |
| b.Branch(func->start_target, i); |
| |
| generator_.EmitFunction(func); |
| EXPECT_EQ(DumpModule(generator_.Module()), R"(OpName %1 "foo" |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %7 = OpTypeBool |
| %6 = OpConstantTrue %7 |
| %1 = OpFunction %2 None %3 |
| %4 = OpLabel |
| OpSelectionMerge %5 None |
| OpBranchConditional %6 %5 %5 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(SpvGeneratorImplTest, If_FalseEmpty) { |
| auto* func = b.CreateFunction(mod.symbols.Register("foo"), mod.types.Get<type::Void>()); |
| |
| auto* i = b.CreateIf(b.Constant(true)); |
| b.Branch(i->false_.target->As<ir::Block>(), i->merge.target); |
| b.Branch(i->merge.target->As<ir::Block>(), func->end_target); |
| |
| auto* true_block = i->true_.target->As<ir::Block>(); |
| true_block->instructions.Push( |
| b.Add(mod.types.Get<type::I32>(), b.Constant(1_i), b.Constant(1_i))); |
| b.Branch(true_block, i->merge.target); |
| |
| b.Branch(func->start_target, i); |
| |
| generator_.EmitFunction(func); |
| EXPECT_EQ(DumpModule(generator_.Module()), R"(OpName %1 "foo" |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %8 = OpTypeBool |
| %7 = OpConstantTrue %8 |
| %10 = OpTypeInt 32 1 |
| %11 = OpConstant %10 1 |
| %1 = OpFunction %2 None %3 |
| %4 = OpLabel |
| OpSelectionMerge %5 None |
| OpBranchConditional %7 %6 %5 |
| %6 = OpLabel |
| %9 = OpIAdd %10 %11 %11 |
| OpBranch %5 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(SpvGeneratorImplTest, If_TrueEmpty) { |
| auto* func = b.CreateFunction(mod.symbols.Register("foo"), mod.types.Get<type::Void>()); |
| |
| auto* i = b.CreateIf(b.Constant(true)); |
| b.Branch(i->true_.target->As<ir::Block>(), i->merge.target); |
| b.Branch(i->merge.target->As<ir::Block>(), func->end_target); |
| |
| auto* false_block = i->false_.target->As<ir::Block>(); |
| false_block->instructions.Push( |
| b.Add(mod.types.Get<type::I32>(), b.Constant(1_i), b.Constant(1_i))); |
| b.Branch(false_block, i->merge.target); |
| |
| b.Branch(func->start_target, i); |
| |
| generator_.EmitFunction(func); |
| EXPECT_EQ(DumpModule(generator_.Module()), R"(OpName %1 "foo" |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %8 = OpTypeBool |
| %7 = OpConstantTrue %8 |
| %10 = OpTypeInt 32 1 |
| %11 = OpConstant %10 1 |
| %1 = OpFunction %2 None %3 |
| %4 = OpLabel |
| OpSelectionMerge %5 None |
| OpBranchConditional %7 %5 %6 |
| %6 = OpLabel |
| %9 = OpIAdd %10 %11 %11 |
| OpBranch %5 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(SpvGeneratorImplTest, If_BothBranchesReturn) { |
| auto* func = b.CreateFunction(mod.symbols.Register("foo"), mod.types.Get<type::Void>()); |
| |
| auto* i = b.CreateIf(b.Constant(true)); |
| b.Branch(i->true_.target->As<ir::Block>(), func->end_target); |
| b.Branch(i->false_.target->As<ir::Block>(), func->end_target); |
| i->merge.target->As<ir::Block>()->branch.target = nullptr; |
| |
| b.Branch(func->start_target, i); |
| |
| generator_.EmitFunction(func); |
| EXPECT_EQ(DumpModule(generator_.Module()), R"(OpName %1 "foo" |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %9 = OpTypeBool |
| %8 = OpConstantTrue %9 |
| %1 = OpFunction %2 None %3 |
| %4 = OpLabel |
| OpSelectionMerge %5 None |
| OpBranchConditional %8 %6 %7 |
| %6 = OpLabel |
| OpReturn |
| %7 = OpLabel |
| OpReturn |
| %5 = OpLabel |
| OpUnreachable |
| OpFunctionEnd |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::writer::spirv |