| // Copyright 2020 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/ast/stage_attribute.h" |
| #include "src/tint/writer/spirv/spv_dump.h" |
| #include "src/tint/writer/spirv/test_helper.h" |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| namespace tint::writer::spirv { |
| namespace { |
| |
| using BuilderTest = TestHelper; |
| |
| TEST_F(BuilderTest, Function_Empty) { |
| Func("a_func", utils::Empty, ty.void_(), utils::Empty); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* func = program->AST().Functions()[0]; |
| ASSERT_TRUE(b.GenerateFunction(func)); |
| EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func" |
| %2 = OpTypeVoid |
| %1 = OpTypeFunction %2 |
| %3 = OpFunction %2 None %1 |
| %4 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(BuilderTest, Function_Terminator_Return) { |
| Func("a_func", utils::Empty, ty.void_(), |
| utils::Vector{ |
| Return(), |
| }); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* func = program->AST().Functions()[0]; |
| ASSERT_TRUE(b.GenerateFunction(func)); |
| EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func" |
| %2 = OpTypeVoid |
| %1 = OpTypeFunction %2 |
| %3 = OpFunction %2 None %1 |
| %4 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(BuilderTest, Function_Terminator_ReturnValue) { |
| GlobalVar("a", ty.f32(), ast::StorageClass::kPrivate); |
| |
| Func("a_func", utils::Empty, ty.f32(), utils::Vector{Return("a")}, utils::Empty); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* var_a = program->AST().GlobalVariables()[0]; |
| auto* func = program->AST().Functions()[0]; |
| |
| ASSERT_TRUE(b.GenerateGlobalVariable(var_a)) << b.error(); |
| ASSERT_TRUE(b.GenerateFunction(func)) << b.error(); |
| EXPECT_EQ(DumpBuilder(b), R"(OpName %1 "a" |
| OpName %6 "a_func" |
| %3 = OpTypeFloat 32 |
| %2 = OpTypePointer Private %3 |
| %4 = OpConstantNull %3 |
| %1 = OpVariable %2 Private %4 |
| %5 = OpTypeFunction %3 |
| %6 = OpFunction %3 None %5 |
| %7 = OpLabel |
| %8 = OpLoad %3 %1 |
| OpReturnValue %8 |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(BuilderTest, Function_Terminator_Discard) { |
| Func("a_func", utils::Empty, ty.void_(), |
| utils::Vector{ |
| create<ast::DiscardStatement>(), |
| }); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* func = program->AST().Functions()[0]; |
| ASSERT_TRUE(b.GenerateFunction(func)); |
| EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func" |
| %2 = OpTypeVoid |
| %1 = OpTypeFunction %2 |
| %3 = OpFunction %2 None %1 |
| %4 = OpLabel |
| OpKill |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(BuilderTest, Function_WithParams) { |
| Func("a_func", |
| utils::Vector{ |
| Param("a", ty.f32()), |
| Param("b", ty.i32()), |
| }, |
| ty.f32(), utils::Vector{Return("a")}, utils::Empty); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* func = program->AST().Functions()[0]; |
| ASSERT_TRUE(b.GenerateFunction(func)); |
| EXPECT_EQ(DumpBuilder(b), R"(OpName %4 "a_func" |
| OpName %5 "a" |
| OpName %6 "b" |
| %2 = OpTypeFloat 32 |
| %3 = OpTypeInt 32 1 |
| %1 = OpTypeFunction %2 %2 %3 |
| %4 = OpFunction %2 None %1 |
| %5 = OpFunctionParameter %2 |
| %6 = OpFunctionParameter %3 |
| %7 = OpLabel |
| OpReturnValue %5 |
| OpFunctionEnd |
| )") << DumpBuilder(b); |
| } |
| |
| TEST_F(BuilderTest, Function_WithBody) { |
| Func("a_func", utils::Empty, ty.void_(), |
| utils::Vector{ |
| Return(), |
| }); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* func = program->AST().Functions()[0]; |
| ASSERT_TRUE(b.GenerateFunction(func)); |
| EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func" |
| %2 = OpTypeVoid |
| %1 = OpTypeFunction %2 |
| %3 = OpFunction %2 None %1 |
| %4 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| TEST_F(BuilderTest, FunctionType) { |
| Func("a_func", utils::Empty, ty.void_(), utils::Empty, utils::Empty); |
| |
| spirv::Builder& b = Build(); |
| |
| auto* func = program->AST().Functions()[0]; |
| ASSERT_TRUE(b.GenerateFunction(func)); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeVoid |
| %1 = OpTypeFunction %2 |
| )"); |
| } |
| |
| TEST_F(BuilderTest, FunctionType_DeDuplicate) { |
| auto* func1 = Func("a_func", utils::Empty, ty.void_(), utils::Empty, utils::Empty); |
| auto* func2 = Func("b_func", utils::Empty, ty.void_(), utils::Empty, utils::Empty); |
| |
| spirv::Builder& b = Build(); |
| |
| ASSERT_TRUE(b.GenerateFunction(func1)); |
| ASSERT_TRUE(b.GenerateFunction(func2)); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeVoid |
| %1 = OpTypeFunction %2 |
| )"); |
| } |
| |
| // https://crbug.com/tint/297 |
| TEST_F(BuilderTest, Emit_Multiple_EntryPoint_With_Same_ModuleVar) { |
| // struct Data { |
| // d : f32; |
| // }; |
| // @binding(0) @group(0) var<storage> data : Data; |
| // |
| // @compute @workgroup_size(1) |
| // fn a() { |
| // return; |
| // } |
| // |
| // @compute @workgroup_size(1) |
| // fn b() { |
| // return; |
| // } |
| |
| auto* s = Structure("Data", utils::Vector{Member("d", ty.f32())}); |
| |
| GlobalVar("data", ty.Of(s), ast::StorageClass::kStorage, ast::Access::kReadWrite, Binding(0_a), |
| Group(0_a)); |
| |
| { |
| auto* var = Var("v", ty.f32(), MemberAccessor("data", "d")); |
| |
| Func("a", utils::Empty, ty.void_(), |
| utils::Vector{ |
| Decl(var), |
| Return(), |
| }, |
| utils::Vector{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1_i)}); |
| } |
| |
| { |
| auto* var = Var("v", ty.f32(), MemberAccessor("data", "d")); |
| |
| Func("b", utils::Empty, ty.void_(), |
| utils::Vector{ |
| Decl(var), |
| Return(), |
| }, |
| utils::Vector{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1_i)}); |
| } |
| |
| spirv::Builder& b = SanitizeAndBuild(); |
| |
| ASSERT_TRUE(b.Build()); |
| EXPECT_EQ(DumpBuilder(b), R"(OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %7 "a" |
| OpEntryPoint GLCompute %17 "b" |
| OpExecutionMode %7 LocalSize 1 1 1 |
| OpExecutionMode %17 LocalSize 1 1 1 |
| OpName %3 "Data" |
| OpMemberName %3 0 "d" |
| OpName %1 "data" |
| OpName %7 "a" |
| OpName %14 "v" |
| OpName %17 "b" |
| OpName %21 "v" |
| OpDecorate %3 Block |
| OpMemberDecorate %3 0 Offset 0 |
| OpDecorate %1 Binding 0 |
| OpDecorate %1 DescriptorSet 0 |
| %4 = OpTypeFloat 32 |
| %3 = OpTypeStruct %4 |
| %2 = OpTypePointer StorageBuffer %3 |
| %1 = OpVariable %2 StorageBuffer |
| %6 = OpTypeVoid |
| %5 = OpTypeFunction %6 |
| %9 = OpTypeInt 32 0 |
| %10 = OpConstant %9 0 |
| %11 = OpTypePointer StorageBuffer %4 |
| %15 = OpTypePointer Function %4 |
| %16 = OpConstantNull %4 |
| %7 = OpFunction %6 None %5 |
| %8 = OpLabel |
| %14 = OpVariable %15 Function %16 |
| %12 = OpAccessChain %11 %1 %10 |
| %13 = OpLoad %4 %12 |
| OpStore %14 %13 |
| OpReturn |
| OpFunctionEnd |
| %17 = OpFunction %6 None %5 |
| %18 = OpLabel |
| %21 = OpVariable %15 Function %16 |
| %19 = OpAccessChain %11 %1 %10 |
| %20 = OpLoad %4 %19 |
| OpStore %21 %20 |
| OpReturn |
| OpFunctionEnd |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::writer::spirv |