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// 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 "gmock/gmock.h"
#include "gtest/gtest-spi.h"
#include "src/tint/lang/spirv/writer/ast_printer/helper_test.h"
#include "src/tint/lang/spirv/writer/common/spv_dump.h"
#include "src/tint/lang/wgsl/ast/stage_attribute.h"
#include "src/tint/lang/wgsl/ast/workgroup_attribute.h"
namespace tint::spirv::writer {
namespace {
using namespace tint::core::fluent_types; // NOLINT
using namespace tint::number_suffixes; // NOLINT
using SpirvASTPrinterTest = TestHelper;
TEST_F(SpirvASTPrinterTest, Attribute_Stage) {
auto* func = Func("main", tint::Empty, ty.void_(), tint::Empty,
Vector{
Stage(ast::PipelineStage::kFragment),
});
Builder& b = Build();
ASSERT_TRUE(b.GenerateFunction(func)) << b.Diagnostics();
EXPECT_EQ(DumpInstructions(b.Module().EntryPoints()),
R"(OpEntryPoint Fragment %3 "main"
)");
}
struct FunctionStageData {
ast::PipelineStage stage;
SpvExecutionModel model;
};
inline std::ostream& operator<<(std::ostream& out, FunctionStageData data) {
StringStream str;
str << data.stage;
out << str.str();
return out;
}
using Attribute_StageTest = TestParamHelper<FunctionStageData>;
TEST_P(Attribute_StageTest, Emit) {
auto params = GetParam();
const ast::Variable* var = nullptr;
ast::Type ret_type;
Vector<const ast::Attribute*, 2> ret_type_attrs;
Vector<const ast::Statement*, 2> body;
if (params.stage == ast::PipelineStage::kVertex) {
ret_type = ty.vec4<f32>();
ret_type_attrs.Push(Builtin(core::BuiltinValue::kPosition));
body.Push(Return(Call<vec4<f32>>()));
}
Vector<const ast::Attribute*, 2> deco_list{Stage(params.stage)};
if (params.stage == ast::PipelineStage::kCompute) {
deco_list.Push(WorkgroupSize(1_i));
}
auto* func = Func("main", tint::Empty, ret_type, body, deco_list, ret_type_attrs);
Builder& b = Build();
if (var) {
ASSERT_TRUE(b.GenerateGlobalVariable(var)) << b.Diagnostics();
}
ASSERT_TRUE(b.GenerateFunction(func)) << b.Diagnostics();
auto preamble = b.Module().EntryPoints();
ASSERT_GE(preamble.size(), 1u);
EXPECT_EQ(preamble[0].opcode(), spv::Op::OpEntryPoint);
ASSERT_GE(preamble[0].operands().size(), 3u);
EXPECT_EQ(std::get<uint32_t>(preamble[0].operands()[0]), static_cast<uint32_t>(params.model));
}
INSTANTIATE_TEST_SUITE_P(
SpirvASTPrinterTest,
Attribute_StageTest,
testing::Values(FunctionStageData{ast::PipelineStage::kVertex, SpvExecutionModelVertex},
FunctionStageData{ast::PipelineStage::kFragment, SpvExecutionModelFragment},
FunctionStageData{ast::PipelineStage::kCompute, SpvExecutionModelGLCompute}));
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_Fragment_OriginUpperLeft) {
auto* func = Func("main", tint::Empty, ty.void_(), tint::Empty,
Vector{
Stage(ast::PipelineStage::kFragment),
});
Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.Diagnostics();
EXPECT_EQ(DumpInstructions(b.Module().ExecutionModes()),
R"(OpExecutionMode %3 OriginUpperLeft
)");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_WorkgroupSize_Default) {
auto* func = Func("main", tint::Empty, ty.void_(), tint::Empty,
Vector{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1_i)});
Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.Diagnostics();
EXPECT_EQ(DumpInstructions(b.Module().ExecutionModes()),
R"(OpExecutionMode %3 LocalSize 1 1 1
)");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_WorkgroupSize_Literals) {
auto* func = Func("main", tint::Empty, ty.void_(), tint::Empty,
Vector{
WorkgroupSize(2_i, 4_i, 6_i),
Stage(ast::PipelineStage::kCompute),
});
Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.Diagnostics();
EXPECT_EQ(DumpInstructions(b.Module().ExecutionModes()),
R"(OpExecutionMode %3 LocalSize 2 4 6
)");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_WorkgroupSize_Const) {
GlobalConst("width", ty.i32(), Call<i32>(2_i));
GlobalConst("height", ty.i32(), Call<i32>(3_i));
GlobalConst("depth", ty.i32(), Call<i32>(4_i));
auto* func = Func("main", tint::Empty, ty.void_(), tint::Empty,
Vector{
WorkgroupSize("width", "height", "depth"),
Stage(ast::PipelineStage::kCompute),
});
Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.Diagnostics();
EXPECT_EQ(DumpInstructions(b.Module().ExecutionModes()),
R"(OpExecutionMode %3 LocalSize 2 3 4
)");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_WorkgroupSize_OverridableConst) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder pb;
pb.Override("width", pb.ty.i32(), pb.Call<i32>(2_i), pb.Id(7_u));
pb.Override("height", pb.ty.i32(), pb.Call<i32>(3_i), pb.Id(8_u));
pb.Override("depth", pb.ty.i32(), pb.Call<i32>(4_i), pb.Id(9_u));
auto* func = pb.Func("main", tint::Empty, pb.ty.void_(), tint::Empty,
Vector{
pb.WorkgroupSize("width", "height", "depth"),
pb.Stage(ast::PipelineStage::kCompute),
});
auto program = std::make_unique<Program>(resolver::Resolve(pb));
auto b = std::make_unique<Builder>(program.get());
b->GenerateExecutionModes(func, 3);
},
"override-expressions should have been removed with the SubstituteOverride transform");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_WorkgroupSize_LiteralAndConst) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder pb;
pb.Override("height", pb.ty.i32(), pb.Call<i32>(2_i), pb.Id(7_u));
pb.GlobalConst("depth", pb.ty.i32(), pb.Call<i32>(3_i));
auto* func = pb.Func("main", tint::Empty, pb.ty.void_(), tint::Empty,
Vector{
pb.WorkgroupSize(4_i, "height", "depth"),
pb.Stage(ast::PipelineStage::kCompute),
});
auto program = std::make_unique<Program>(resolver::Resolve(pb));
auto b = std::make_unique<Builder>(program.get());
b->GenerateExecutionModes(func, 3);
},
"override-expressions should have been removed with the SubstituteOverride transform");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_MultipleFragment) {
auto* func1 = Func("main1", tint::Empty, ty.void_(), tint::Empty,
Vector{
Stage(ast::PipelineStage::kFragment),
});
auto* func2 = Func("main2", tint::Empty, ty.void_(), tint::Empty,
Vector{
Stage(ast::PipelineStage::kFragment),
});
Builder& b = Build();
ASSERT_TRUE(b.GenerateFunction(func1)) << b.Diagnostics();
ASSERT_TRUE(b.GenerateFunction(func2)) << b.Diagnostics();
EXPECT_EQ(DumpModule(b.Module()),
R"(OpEntryPoint Fragment %3 "main1"
OpEntryPoint Fragment %5 "main2"
OpExecutionMode %3 OriginUpperLeft
OpExecutionMode %5 OriginUpperLeft
OpName %3 "main1"
OpName %5 "main2"
%2 = OpTypeVoid
%1 = OpTypeFunction %2
%3 = OpFunction %2 None %1
%4 = OpLabel
OpReturn
OpFunctionEnd
%5 = OpFunction %2 None %1
%6 = OpLabel
OpReturn
OpFunctionEnd
)");
}
TEST_F(SpirvASTPrinterTest, Decoration_ExecutionMode_FragDepth) {
Func("main", tint::Empty, ty.f32(),
Vector{
Return(Expr(1_f)),
},
Vector{
Stage(ast::PipelineStage::kFragment),
},
Vector{
Builtin(core::BuiltinValue::kFragDepth),
});
Builder& b = SanitizeAndBuild();
ASSERT_TRUE(b.Build());
EXPECT_EQ(DumpInstructions(b.Module().ExecutionModes()),
R"(OpExecutionMode %11 OriginUpperLeft
OpExecutionMode %11 DepthReplacing
)");
}
} // namespace
} // namespace tint::spirv::writer