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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 <memory>
#include "gtest/gtest.h"
#include "src/ast/binary_expression.h"
#include "src/ast/binding_decoration.h"
#include "src/ast/builtin.h"
#include "src/ast/builtin_decoration.h"
#include "src/ast/decorated_variable.h"
#include "src/ast/float_literal.h"
#include "src/ast/location_decoration.h"
#include "src/ast/scalar_constructor_expression.h"
#include "src/ast/set_decoration.h"
#include "src/ast/storage_class.h"
#include "src/ast/struct.h"
#include "src/ast/type/access_control_type.h"
#include "src/ast/type/f32_type.h"
#include "src/ast/type/struct_type.h"
#include "src/ast/type/vector_type.h"
#include "src/ast/type_constructor_expression.h"
#include "src/ast/variable.h"
#include "src/ast/variable_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, FunctionVar_NoStorageClass) {
ast::type::F32Type f32;
ast::Variable v("var", ast::StorageClass::kNone, &f32);
b.push_function(Function{});
EXPECT_TRUE(b.GenerateFunctionVariable(&v)) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeFloat 32
%2 = OpTypePointer Function %3
%4 = OpConstantNull %3
)");
const auto& func = b.functions()[0];
EXPECT_EQ(DumpInstructions(func.variables()),
R"(%1 = OpVariable %2 Function %4
)");
}
TEST_F(BuilderTest, FunctionVar_WithConstantConstructor) {
ast::type::F32Type f32;
ast::type::VectorType vec(&f32, 3);
ast::ExpressionList vals;
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 3.0f)));
auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
ast::Variable v("var", ast::StorageClass::kOutput, &f32);
v.set_constructor(init);
td.RegisterVariableForTesting(&v);
b.push_function(Function{});
EXPECT_TRUE(b.GenerateFunctionVariable(&v)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %6 "tint_766172"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeFloat 32
%1 = OpTypeVector %2 3
%3 = OpConstant %2 1
%4 = OpConstant %2 3
%5 = OpConstantComposite %1 %3 %3 %4
%7 = OpTypePointer Function %2
%8 = OpConstantNull %2
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].variables()),
R"(%6 = OpVariable %7 Function %8
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), R"(OpStore %6 %5
)");
}
TEST_F(BuilderTest, FunctionVar_WithNonConstantConstructor) {
ast::type::F32Type f32;
ast::type::VectorType vec(&f32, 2);
auto* rel =
create<ast::BinaryExpression>(ast::BinaryOp::kAdd,
create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 3.0f)),
create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 3.0f)));
ast::ExpressionList vals;
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
vals.push_back(rel);
auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
ast::Variable v("var", ast::StorageClass::kFunction, &vec);
v.set_constructor(init);
td.RegisterVariableForTesting(&v);
b.push_function(Function{});
EXPECT_TRUE(b.GenerateFunctionVariable(&v)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %7 "tint_766172"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeFloat 32
%1 = OpTypeVector %2 2
%3 = OpConstant %2 1
%4 = OpConstant %2 3
%8 = OpTypePointer Function %1
%9 = OpConstantNull %1
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].variables()),
R"(%7 = OpVariable %8 Function %9
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
R"(%5 = OpFAdd %2 %4 %4
%6 = OpCompositeConstruct %1 %3 %5
OpStore %7 %6
)");
}
TEST_F(BuilderTest, FunctionVar_WithNonConstantConstructorLoadedFromVar) {
// var v : f32 = 1.0;
// var v2 : f32 = v; // Should generate the load and store automatically.
ast::type::F32Type f32;
auto* init = create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f));
ASSERT_TRUE(td.DetermineResultType(init)) << td.error();
ast::Variable v("v", ast::StorageClass::kFunction, &f32);
v.set_constructor(init);
td.RegisterVariableForTesting(&v);
ast::Variable v2("v2", ast::StorageClass::kFunction, &f32);
v2.set_constructor(create<ast::IdentifierExpression>("v"));
td.RegisterVariableForTesting(&v2);
ASSERT_TRUE(td.DetermineResultType(v2.constructor())) << td.error();
b.push_function(Function{});
EXPECT_TRUE(b.GenerateFunctionVariable(&v)) << b.error();
EXPECT_TRUE(b.GenerateFunctionVariable(&v2)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %3 "tint_76"
OpName %7 "tint_7632"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%1 = OpTypeFloat 32
%2 = OpConstant %1 1
%4 = OpTypePointer Function %1
%5 = OpConstantNull %1
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].variables()),
R"(%3 = OpVariable %4 Function %5
%7 = OpVariable %4 Function %5
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
R"(OpStore %3 %2
%6 = OpLoad %1 %3
OpStore %7 %6
)");
}
TEST_F(BuilderTest, FunctionVar_ConstWithVarInitializer) {
// var v : f32 = 1.0;
// const v2 : f32 = v; // Should generate the load
ast::type::F32Type f32;
auto* init = create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f));
EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
ast::Variable v("v", ast::StorageClass::kFunction, &f32);
v.set_constructor(init);
td.RegisterVariableForTesting(&v);
ast::Variable v2("v2", ast::StorageClass::kFunction, &f32);
v2.set_is_const(true);
v2.set_constructor(create<ast::IdentifierExpression>("v"));
td.RegisterVariableForTesting(&v2);
ASSERT_TRUE(td.DetermineResultType(v2.constructor())) << td.error();
b.push_function(Function{});
EXPECT_TRUE(b.GenerateFunctionVariable(&v)) << b.error();
EXPECT_TRUE(b.GenerateFunctionVariable(&v2)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %3 "tint_76"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%1 = OpTypeFloat 32
%2 = OpConstant %1 1
%4 = OpTypePointer Function %1
%5 = OpConstantNull %1
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].variables()),
R"(%3 = OpVariable %4 Function %5
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
R"(OpStore %3 %2
%6 = OpLoad %1 %3
)");
}
TEST_F(BuilderTest, FunctionVar_Const) {
ast::type::F32Type f32;
ast::type::VectorType vec(&f32, 3);
ast::ExpressionList vals;
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 1.0f)));
vals.push_back(create<ast::ScalarConstructorExpression>(
create<ast::FloatLiteral>(&f32, 3.0f)));
auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
ast::Variable v("var", ast::StorageClass::kOutput, &f32);
v.set_constructor(init);
v.set_is_const(true);
td.RegisterVariableForTesting(&v);
EXPECT_TRUE(b.GenerateFunctionVariable(&v)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeFloat 32
%1 = OpTypeVector %2 3
%3 = OpConstant %2 1
%4 = OpConstant %2 3
%5 = OpConstantComposite %1 %3 %3 %4
)");
}
} // namespace
} // namespace spirv
} // namespace writer
} // namespace tint