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// Copyright 2023 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.
#ifndef SRC_TINT_WRITER_SPIRV_IR_TEST_HELPER_IR_H_
#define SRC_TINT_WRITER_SPIRV_IR_TEST_HELPER_IR_H_
#include <string>
#include "gtest/gtest.h"
#include "src/tint/ir/builder.h"
#include "src/tint/writer/spirv/ir/generator_impl_ir.h"
#include "src/tint/writer/spirv/spv_dump.h"
namespace tint::writer::spirv {
/// The element type of a test.
enum TestElementType {
kBool,
kI32,
kU32,
kF32,
kF16,
};
/// Base helper class for testing the SPIR-V generator implementation.
template <typename BASE>
class SpvGeneratorTestHelperBase : public BASE {
public:
SpvGeneratorTestHelperBase() : generator_(&mod, false) {}
/// The test module
ir::Module mod;
/// The test builder
ir::Builder b{mod};
protected:
/// The SPIR-V generator.
GeneratorImplIr generator_;
/// @returns the disassembled types from the generated module.
std::string DumpTypes() { return DumpInstructions(generator_.Module().Types()); }
/// Helper to make a scalar type corresponding to the element type `ty`.
/// @param ty the element type
/// @returns the scalar type
const type::Type* MakeScalarType(TestElementType ty) {
switch (ty) {
case kBool:
return mod.Types().bool_();
case kI32:
return mod.Types().i32();
case kU32:
return mod.Types().u32();
case kF32:
return mod.Types().f32();
case kF16:
return mod.Types().f16();
}
return nullptr;
}
/// Helper to make a vector type corresponding to the element type `ty`.
/// @param ty the element type
/// @returns the vector type
const type::Type* MakeVectorType(TestElementType ty) {
return mod.Types().vec2(MakeScalarType(ty));
}
/// Helper to make a scalar value with the scalar type `ty`.
/// @param ty the element type
/// @returns the scalar value
ir::Value* MakeScalarValue(TestElementType ty) {
switch (ty) {
case kBool:
return b.Constant(true);
case kI32:
return b.Constant(i32(1));
case kU32:
return b.Constant(u32(1));
case kF32:
return b.Constant(f32(1));
case kF16:
return b.Constant(f16(1));
}
return nullptr;
}
/// Helper to make a vector value with an element type of `ty`.
/// @param ty the element type
/// @returns the vector value
ir::Value* MakeVectorValue(TestElementType ty) {
switch (ty) {
case kBool:
return b.Constant(mod.constant_values.Composite(
MakeVectorType(ty),
utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(true),
mod.constant_values.Get(false)}));
case kI32:
return b.Constant(mod.constant_values.Composite(
MakeVectorType(ty),
utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(i32(42)),
mod.constant_values.Get(i32(-10))}));
case kU32:
return b.Constant(mod.constant_values.Composite(
MakeVectorType(ty),
utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(u32(42)),
mod.constant_values.Get(u32(10))}));
case kF32:
return b.Constant(mod.constant_values.Composite(
MakeVectorType(ty),
utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(f32(42)),
mod.constant_values.Get(f32(-0.5))}));
case kF16:
return b.Constant(mod.constant_values.Composite(
MakeVectorType(ty),
utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(f16(42)),
mod.constant_values.Get(f16(-0.5))}));
}
return nullptr;
}
};
using SpvGeneratorImplTest = SpvGeneratorTestHelperBase<testing::Test>;
template <typename T>
using SpvGeneratorImplTestWithParam = SpvGeneratorTestHelperBase<testing::TestWithParam<T>>;
} // namespace tint::writer::spirv
#endif // SRC_TINT_WRITER_SPIRV_IR_TEST_HELPER_IR_H_