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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 <string>
#include "gtest/gtest.h"
#include "spirv/unified1/spirv.h"
#include "spirv/unified1/spirv.hpp11"
#include "src/ast/assignment_statement.h"
#include "src/ast/function.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/pipeline_stage.h"
#include "src/ast/stage_decoration.h"
#include "src/ast/type/f32_type.h"
#include "src/ast/type/void_type.h"
#include "src/ast/variable.h"
#include "src/ast/workgroup_decoration.h"
#include "src/context.h"
#include "src/type_determiner.h"
#include "src/writer/spirv/builder.h"
#include "src/writer/spirv/spv_dump.h"
#include "src/writer/spirv/test_helper.h"
namespace tint {
namespace writer {
namespace spirv {
namespace {
using BuilderTest = TestHelper;
TEST_F(BuilderTest, FunctionDecoration_Stage) {
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
ASSERT_TRUE(b.GenerateFunction(&func)) << b.error();
EXPECT_EQ(DumpInstructions(b.entry_points()),
R"(OpEntryPoint Vertex %3 "main"
)");
}
struct FunctionStageData {
ast::PipelineStage stage;
SpvExecutionModel model;
};
inline std::ostream& operator<<(std::ostream& out, FunctionStageData data) {
out << data.stage;
return out;
}
using FunctionDecoration_StageTest = TestParamHelper<FunctionStageData>;
TEST_P(FunctionDecoration_StageTest, Emit) {
auto params = GetParam();
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(create<ast::StageDecoration>(params.stage, Source{}));
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(preamble[0].operands()[0].to_i(), params.model);
}
INSTANTIATE_TEST_SUITE_P(
BuilderTest,
FunctionDecoration_StageTest,
testing::Values(FunctionStageData{ast::PipelineStage::kVertex,
SpvExecutionModelVertex},
FunctionStageData{ast::PipelineStage::kFragment,
SpvExecutionModelFragment},
FunctionStageData{ast::PipelineStage::kCompute,
SpvExecutionModelGLCompute}));
TEST_F(BuilderTest, FunctionDecoration_Stage_WithUnusedInterfaceIds) {
ast::type::F32Type f32;
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
auto* v_in = create<ast::Variable>("my_in", ast::StorageClass::kInput, &f32);
auto* v_out =
create<ast::Variable>("my_out", ast::StorageClass::kOutput, &f32);
auto* v_wg =
create<ast::Variable>("my_wg", ast::StorageClass::kWorkgroup, &f32);
EXPECT_TRUE(b.GenerateGlobalVariable(v_in)) << b.error();
EXPECT_TRUE(b.GenerateGlobalVariable(v_out)) << b.error();
EXPECT_TRUE(b.GenerateGlobalVariable(v_wg)) << b.error();
mod->AddGlobalVariable(v_in);
mod->AddGlobalVariable(v_out);
mod->AddGlobalVariable(v_wg);
ASSERT_TRUE(b.GenerateFunction(&func)) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_6d795f696e"
OpName %4 "tint_6d795f6f7574"
OpName %7 "tint_6d795f7767"
OpName %11 "tint_6d61696e"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeFloat 32
%2 = OpTypePointer Input %3
%1 = OpVariable %2 Input
%5 = OpTypePointer Output %3
%6 = OpConstantNull %3
%4 = OpVariable %5 Output %6
%8 = OpTypePointer Workgroup %3
%7 = OpVariable %8 Workgroup
%10 = OpTypeVoid
%9 = OpTypeFunction %10
)");
EXPECT_EQ(DumpInstructions(b.entry_points()),
R"(OpEntryPoint Vertex %11 "main"
)");
}
TEST_F(BuilderTest, FunctionDecoration_Stage_WithUsedInterfaceIds) {
ast::type::F32Type f32;
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
auto* body = create<ast::BlockStatement>();
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("my_out"),
create<ast::IdentifierExpression>("my_in")));
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("my_wg"),
create<ast::IdentifierExpression>("my_wg")));
// Add duplicate usages so we show they don't get output multiple times.
body->append(create<ast::AssignmentStatement>(
create<ast::IdentifierExpression>("my_out"),
create<ast::IdentifierExpression>("my_in")));
func.set_body(body);
auto* v_in = create<ast::Variable>("my_in", ast::StorageClass::kInput, &f32);
auto* v_out =
create<ast::Variable>("my_out", ast::StorageClass::kOutput, &f32);
auto* v_wg =
create<ast::Variable>("my_wg", ast::StorageClass::kWorkgroup, &f32);
td.RegisterVariableForTesting(v_in);
td.RegisterVariableForTesting(v_out);
td.RegisterVariableForTesting(v_wg);
ASSERT_TRUE(td.DetermineFunction(&func)) << td.error();
EXPECT_TRUE(b.GenerateGlobalVariable(v_in)) << b.error();
EXPECT_TRUE(b.GenerateGlobalVariable(v_out)) << b.error();
EXPECT_TRUE(b.GenerateGlobalVariable(v_wg)) << b.error();
mod->AddGlobalVariable(v_in);
mod->AddGlobalVariable(v_out);
mod->AddGlobalVariable(v_wg);
ASSERT_TRUE(b.GenerateFunction(&func)) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_6d795f696e"
OpName %4 "tint_6d795f6f7574"
OpName %7 "tint_6d795f7767"
OpName %11 "tint_6d61696e"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeFloat 32
%2 = OpTypePointer Input %3
%1 = OpVariable %2 Input
%5 = OpTypePointer Output %3
%6 = OpConstantNull %3
%4 = OpVariable %5 Output %6
%8 = OpTypePointer Workgroup %3
%7 = OpVariable %8 Workgroup
%10 = OpTypeVoid
%9 = OpTypeFunction %10
)");
EXPECT_EQ(DumpInstructions(b.entry_points()),
R"(OpEntryPoint Vertex %11 "main" %4 %1
)");
}
TEST_F(BuilderTest, FunctionDecoration_ExecutionMode_Fragment_OriginUpperLeft) {
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
ASSERT_TRUE(b.GenerateExecutionModes(&func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 OriginUpperLeft
)");
}
TEST_F(BuilderTest, FunctionDecoration_WorkgroupSize_Default) {
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
ASSERT_TRUE(b.GenerateExecutionModes(&func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 LocalSize 1 1 1
)");
}
TEST_F(BuilderTest, FunctionDecoration_WorkgroupSize) {
ast::type::VoidType void_type;
ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
func.add_decoration(create<ast::WorkgroupDecoration>(2u, 4u, 6u, Source{}));
func.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
ASSERT_TRUE(b.GenerateExecutionModes(&func, 3)) << b.error();
EXPECT_EQ(DumpInstructions(b.execution_modes()),
R"(OpExecutionMode %3 LocalSize 2 4 6
)");
}
TEST_F(BuilderTest, FunctionDecoration_ExecutionMode_MultipleFragment) {
ast::type::VoidType void_type;
ast::Function func1("main1", {}, &void_type, create<ast::BlockStatement>());
func1.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
ast::Function func2("main2", {}, &void_type, create<ast::BlockStatement>());
func2.add_decoration(
create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
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 "tint_6d61696e31"
OpName %5 "tint_6d61696e32"
%2 = OpTypeVoid
%1 = OpTypeFunction %2
%3 = OpFunction %2 None %1
%4 = OpLabel
OpReturn
OpFunctionEnd
%5 = OpFunction %2 None %1
%6 = OpLabel
OpReturn
OpFunctionEnd
)");
}
} // namespace
} // namespace spirv
} // namespace writer
} // namespace tint