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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 "src/tint/ast/stage_attribute.h"
#include "src/tint/ast/workgroup_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, Attribute_Stage) {
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
spirv::Builder& b = Build();
ASSERT_TRUE(b.GenerateFunction(func)) << b.error();
EXPECT_EQ(DumpInstructions(b.entry_points()),
R"(OpEntryPoint Fragment %3 "main"
)");
}
struct FunctionStageData {
ast::PipelineStage stage;
SpvExecutionModel model;
};
inline std::ostream& operator<<(std::ostream& out, FunctionStageData data) {
out << data.stage;
return out;
}
using Attribute_StageTest = TestParamHelper<FunctionStageData>;
TEST_P(Attribute_StageTest, Emit) {
auto params = GetParam();
const ast::Variable* var = nullptr;
const ast::Type* ret_type = nullptr;
utils::Vector<const ast::Attribute*, 2> ret_type_attrs;
utils::Vector<const ast::Statement*, 2> body;
if (params.stage == ast::PipelineStage::kVertex) {
ret_type = ty.vec4<f32>();
ret_type_attrs.Push(Builtin(ast::BuiltinValue::kPosition));
body.Push(Return(Construct(ty.vec4<f32>())));
} else {
ret_type = ty.void_();
}
utils::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", utils::Empty, ret_type, body, deco_list, ret_type_attrs);
spirv::Builder& b = Build();
if (var) {
ASSERT_TRUE(b.GenerateGlobalVariable(var)) << b.error();
}
ASSERT_TRUE(b.GenerateFunction(func)) << b.error();
auto preamble = b.entry_points();
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(
BuilderTest,
Attribute_StageTest,
testing::Values(FunctionStageData{ast::PipelineStage::kVertex, SpvExecutionModelVertex},
FunctionStageData{ast::PipelineStage::kFragment, SpvExecutionModelFragment},
FunctionStageData{ast::PipelineStage::kCompute, SpvExecutionModelGLCompute}));
TEST_F(BuilderTest, Decoration_ExecutionMode_Fragment_OriginUpperLeft) {
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
spirv::Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 OriginUpperLeft
)");
}
TEST_F(BuilderTest, Decoration_ExecutionMode_WorkgroupSize_Default) {
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1_i)});
spirv::Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 LocalSize 1 1 1
)");
}
TEST_F(BuilderTest, Decoration_ExecutionMode_WorkgroupSize_Literals) {
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
WorkgroupSize(2_i, 4_i, 6_i),
Stage(ast::PipelineStage::kCompute),
});
spirv::Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 LocalSize 2 4 6
)");
}
TEST_F(BuilderTest, Decoration_ExecutionMode_WorkgroupSize_Const) {
GlobalConst("width", ty.i32(), Construct(ty.i32(), 2_i));
GlobalConst("height", ty.i32(), Construct(ty.i32(), 3_i));
GlobalConst("depth", ty.i32(), Construct(ty.i32(), 4_i));
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
WorkgroupSize("width", "height", "depth"),
Stage(ast::PipelineStage::kCompute),
});
spirv::Builder& b = Build();
ASSERT_TRUE(b.GenerateExecutionModes(func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 LocalSize 2 3 4
)");
}
TEST_F(BuilderTest, Decoration_ExecutionMode_WorkgroupSize_OverridableConst) {
Override("width", ty.i32(), Construct(ty.i32(), 2_i), Id(7_u));
Override("height", ty.i32(), Construct(ty.i32(), 3_i), Id(8_u));
Override("depth", ty.i32(), Construct(ty.i32(), 4_i), Id(9_u));
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
WorkgroupSize("width", "height", "depth"),
Stage(ast::PipelineStage::kCompute),
});
spirv::Builder& b = Build();
EXPECT_FALSE(b.GenerateExecutionModes(func, 3)) << b.error();
EXPECT_EQ(
b.error(),
R"(override expressions should have been removed with the SubstituteOverride transform)");
}
TEST_F(BuilderTest, Decoration_ExecutionMode_WorkgroupSize_LiteralAndConst) {
Override("height", ty.i32(), Construct(ty.i32(), 2_i), Id(7_u));
GlobalConst("depth", ty.i32(), Construct(ty.i32(), 3_i));
auto* func = Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
WorkgroupSize(4_i, "height", "depth"),
Stage(ast::PipelineStage::kCompute),
});
spirv::Builder& b = Build();
EXPECT_FALSE(b.GenerateExecutionModes(func, 3)) << b.error();
EXPECT_EQ(
b.error(),
R"(override expressions should have been removed with the SubstituteOverride transform)");
}
TEST_F(BuilderTest, Decoration_ExecutionMode_MultipleFragment) {
auto* func1 = Func("main1", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
auto* func2 = Func("main2", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
spirv::Builder& b = Build();
ASSERT_TRUE(b.GenerateFunction(func1)) << b.error();
ASSERT_TRUE(b.GenerateFunction(func2)) << b.error();
EXPECT_EQ(DumpBuilder(b),
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(BuilderTest, Decoration_ExecutionMode_FragDepth) {
Func("main", utils::Empty, ty.f32(),
utils::Vector{
Return(Expr(1_f)),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
utils::Vector{
Builtin(ast::BuiltinValue::kFragDepth),
});
spirv::Builder& b = SanitizeAndBuild();
ASSERT_TRUE(b.Build());
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %11 OriginUpperLeft
OpExecutionMode %11 DepthReplacing
)");
}
} // namespace
} // namespace tint::writer::spirv