src/tint/lang/spirv/writer/test_helper.h - dawn - Git at Google

 // 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_LANG_SPIRV_WRITER_TEST_HELPER_H_
 #define SRC_TINT_LANG_SPIRV_WRITER_TEST_HELPER_H_

 #include <string>
 #include <utility>
 #include <vector>

 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 #include "spirv-tools/libspirv.hpp"
 #include "src/tint/ir/builder.h"
 #include "src/tint/ir/validator.h"
 #include "src/tint/lang/spirv/ast_writer/spv_dump.h"
 #include "src/tint/lang/spirv/writer/writer.h"

 namespace tint::writer::spirv {

 // Helper macro to check whether the SPIR-V output contains an instruction, dumping the full output
 // if the instruction was not present.
 #define EXPECT_INST(inst) ASSERT_THAT(output_, testing::HasSubstr(inst)) << output_

 /// The element type of a test.
 enum TestElementType {
     kBool,
     kI32,
     kU32,
     kF32,
     kF16,
 };
 inline utils::StringStream& operator<<(utils::StringStream& out, TestElementType type) {
     switch (type) {
         case kBool:
             out << "bool";
             break;
         case kI32:
             out << "i32";
             break;
         case kU32:
             out << "u32";
             break;
         case kF32:
             out << "f32";
             break;
         case kF16:
             out << "f16";
             break;
     }
     return out;
 }

 /// Base helper class for testing the SPIR-V writer implementation.
 template <typename BASE>
 class SpirvWriterTestHelperBase : public BASE {
   public:
     SpirvWriterTestHelperBase() : writer_(&mod, false) {}

     /// The test module.
     ir::Module mod;
     /// The test builder.
     ir::Builder b{mod};
     /// The type manager.
     type::Manager& ty{mod.Types()};

   protected:
     /// The SPIR-V writer.
     Writer writer_;

     /// Errors produced during codegen or SPIR-V validation.
     std::string err_;

     /// SPIR-V output.
     std::string output_;

     /// @returns the error string from the validation
     std::string Error() const { return err_; }

     /// Run the specified writer on the IR module and validate the result.
     /// @param writer the writer to use for SPIR-V generation
     /// @returns true if generation and validation succeeded
     bool Generate(Writer& writer) {
         if (!writer.Generate()) {
             err_ = writer.Diagnostics().str();
             return false;
         }

         output_ = Disassemble(writer.Result(), SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES |
                                                    SPV_BINARY_TO_TEXT_OPTION_INDENT |
                                                    SPV_BINARY_TO_TEXT_OPTION_COMMENT);

         if (!Validate(writer.Result())) {
             return false;
         }

         return true;
     }

     /// Run the writer on the IR module and validate the result.
     /// @returns true if generation and validation succeeded
     bool Generate() { return Generate(writer_); }

     /// Validate the generated SPIR-V using the SPIR-V Tools Validator.
     /// @param binary the SPIR-V binary module to validate
     /// @returns true if validation succeeded, false otherwise
     bool Validate(const std::vector<uint32_t>& binary) {
         std::string spv_errors;
         auto msg_consumer = [&spv_errors](spv_message_level_t level, const char*,
                                           const spv_position_t& position, const char* message) {
             switch (level) {
                 case SPV_MSG_FATAL:
                 case SPV_MSG_INTERNAL_ERROR:
                 case SPV_MSG_ERROR:
                     spv_errors +=
                         "error: line " + std::to_string(position.index) + ": " + message + "\n";
                     break;
                 case SPV_MSG_WARNING:
                     spv_errors +=
                         "warning: line " + std::to_string(position.index) + ": " + message + "\n";
                     break;
                 case SPV_MSG_INFO:
                     spv_errors +=
                         "info: line " + std::to_string(position.index) + ": " + message + "\n";
                     break;
                 case SPV_MSG_DEBUG:
                     break;
             }
         };

         spvtools::SpirvTools tools(SPV_ENV_VULKAN_1_2);
         tools.SetMessageConsumer(msg_consumer);

         auto result = tools.Validate(binary);
         err_ = std::move(spv_errors);
         return result;
     }

     /// @returns the disassembled types from the generated module.
     std::string DumpTypes() { return DumpInstructions(writer_.Module().Types()); }

     /// Helper to make a scalar type corresponding to the element type `type`.
     /// @param type the element type
     /// @returns the scalar type
     const type::Type* MakeScalarType(TestElementType type) {
         switch (type) {
             case kBool:
                 return ty.bool_();
             case kI32:
                 return ty.i32();
             case kU32:
                 return ty.u32();
             case kF32:
                 return ty.f32();
             case kF16:
                 return ty.f16();
         }
         return nullptr;
     }

     /// Helper to make a vector type corresponding to the element type `type`.
     /// @param type the element type
     /// @returns the vector type
     const type::Type* MakeVectorType(TestElementType type) { return ty.vec2(MakeScalarType(type)); }

     /// Helper to make a scalar value with the scalar type `type`.
     /// @param type the element type
     /// @param value the optional value to use
     /// @returns the scalar value
     ir::Constant* MakeScalarValue(TestElementType type, uint32_t value = 1) {
         switch (type) {
             case kBool:
                 return b.Constant(true);
             case kI32:
                 return b.Constant(i32(value));
             case kU32:
                 return b.Constant(u32(value));
             case kF32:
                 return b.Constant(f32(value));
             case kF16:
                 return b.Constant(f16(value));
         }
         return nullptr;
     }

     /// Helper to make a vector value with an element type of `type`.
     /// @param type the element type
     /// @returns the vector value
     ir::Constant* MakeVectorValue(TestElementType type) {
         switch (type) {
             case kBool:
                 return b.Constant(mod.constant_values.Composite(
                     MakeVectorType(type),
                     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(type),
                     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(type),
                     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(type),
                     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(type),
                     utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(f16(42)),
                                                              mod.constant_values.Get(f16(-0.5))}));
         }
         return nullptr;
     }
 };

 using SpirvWriterTest = SpirvWriterTestHelperBase<testing::Test>;

 template <typename T>
 using SpirvWriterTestWithParam = SpirvWriterTestHelperBase<testing::TestWithParam<T>>;

 }  // namespace tint::writer::spirv

 #endif  // SRC_TINT_LANG_SPIRV_WRITER_TEST_HELPER_H_
	// 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_LANG_SPIRV_WRITER_TEST_HELPER_H_
	#define SRC_TINT_LANG_SPIRV_WRITER_TEST_HELPER_H_

	#include <string>
	#include <utility>
	#include <vector>

	#include "gmock/gmock.h"
	#include "gtest/gtest.h"
	#include "spirv-tools/libspirv.hpp"
	#include "src/tint/ir/builder.h"
	#include "src/tint/ir/validator.h"
	#include "src/tint/lang/spirv/ast_writer/spv_dump.h"
	#include "src/tint/lang/spirv/writer/writer.h"

	namespace tint::writer::spirv {

	// Helper macro to check whether the SPIR-V output contains an instruction, dumping the full output
	// if the instruction was not present.
	#define EXPECT_INST(inst) ASSERT_THAT(output_, testing::HasSubstr(inst)) << output_

	/// The element type of a test.
	enum TestElementType {
	kBool,
	kI32,
	kU32,
	kF32,
	kF16,
	};
	inline utils::StringStream& operator<<(utils::StringStream& out, TestElementType type) {
	switch (type) {
	case kBool:
	out << "bool";
	break;
	case kI32:
	out << "i32";
	break;
	case kU32:
	out << "u32";
	break;
	case kF32:
	out << "f32";
	break;
	case kF16:
	out << "f16";
	break;
	}
	return out;
	}

	/// Base helper class for testing the SPIR-V writer implementation.
	template <typename BASE>
	class SpirvWriterTestHelperBase : public BASE {
	public:
	SpirvWriterTestHelperBase() : writer_(&mod, false) {}

	/// The test module.
	ir::Module mod;
	/// The test builder.
	ir::Builder b{mod};
	/// The type manager.
	type::Manager& ty{mod.Types()};

	protected:
	/// The SPIR-V writer.
	Writer writer_;

	/// Errors produced during codegen or SPIR-V validation.
	std::string err_;

	/// SPIR-V output.
	std::string output_;

	/// @returns the error string from the validation
	std::string Error() const { return err_; }

	/// Run the specified writer on the IR module and validate the result.
	/// @param writer the writer to use for SPIR-V generation
	/// @returns true if generation and validation succeeded
	bool Generate(Writer& writer) {
	if (!writer.Generate()) {
	err_ = writer.Diagnostics().str();
	return false;
	}

	output_ = Disassemble(writer.Result(), SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES \|
	SPV_BINARY_TO_TEXT_OPTION_INDENT \|
	SPV_BINARY_TO_TEXT_OPTION_COMMENT);

	if (!Validate(writer.Result())) {
	return false;
	}

	return true;
	}

	/// Run the writer on the IR module and validate the result.
	/// @returns true if generation and validation succeeded
	bool Generate() { return Generate(writer_); }

	/// Validate the generated SPIR-V using the SPIR-V Tools Validator.
	/// @param binary the SPIR-V binary module to validate
	/// @returns true if validation succeeded, false otherwise
	bool Validate(const std::vector<uint32_t>& binary) {
	std::string spv_errors;
	auto msg_consumer = [&spv_errors](spv_message_level_t level, const char*,
	const spv_position_t& position, const char* message) {
	switch (level) {
	case SPV_MSG_FATAL:
	case SPV_MSG_INTERNAL_ERROR:
	case SPV_MSG_ERROR:
	spv_errors +=
	"error: line " + std::to_string(position.index) + ": " + message + "\n";
	break;
	case SPV_MSG_WARNING:
	spv_errors +=
	"warning: line " + std::to_string(position.index) + ": " + message + "\n";
	break;
	case SPV_MSG_INFO:
	spv_errors +=
	"info: line " + std::to_string(position.index) + ": " + message + "\n";
	break;
	case SPV_MSG_DEBUG:
	break;
	}
	};

	spvtools::SpirvTools tools(SPV_ENV_VULKAN_1_2);
	tools.SetMessageConsumer(msg_consumer);

	auto result = tools.Validate(binary);
	err_ = std::move(spv_errors);
	return result;
	}

	/// @returns the disassembled types from the generated module.
	std::string DumpTypes() { return DumpInstructions(writer_.Module().Types()); }

	/// Helper to make a scalar type corresponding to the element type `type`.
	/// @param type the element type
	/// @returns the scalar type
	const type::Type* MakeScalarType(TestElementType type) {
	switch (type) {
	case kBool:
	return ty.bool_();
	case kI32:
	return ty.i32();
	case kU32:
	return ty.u32();
	case kF32:
	return ty.f32();
	case kF16:
	return ty.f16();
	}
	return nullptr;
	}

	/// Helper to make a vector type corresponding to the element type `type`.
	/// @param type the element type
	/// @returns the vector type
	const type::Type* MakeVectorType(TestElementType type) { return ty.vec2(MakeScalarType(type)); }

	/// Helper to make a scalar value with the scalar type `type`.
	/// @param type the element type
	/// @param value the optional value to use
	/// @returns the scalar value
	ir::Constant* MakeScalarValue(TestElementType type, uint32_t value = 1) {
	switch (type) {
	case kBool:
	return b.Constant(true);
	case kI32:
	return b.Constant(i32(value));
	case kU32:
	return b.Constant(u32(value));
	case kF32:
	return b.Constant(f32(value));
	case kF16:
	return b.Constant(f16(value));
	}
	return nullptr;
	}

	/// Helper to make a vector value with an element type of `type`.
	/// @param type the element type
	/// @returns the vector value
	ir::Constant* MakeVectorValue(TestElementType type) {
	switch (type) {
	case kBool:
	return b.Constant(mod.constant_values.Composite(
	MakeVectorType(type),
	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(type),
	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(type),
	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(type),
	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(type),
	utils::Vector<const constant::Value*, 2>{mod.constant_values.Get(f16(42)),
	mod.constant_values.Get(f16(-0.5))}));
	}
	return nullptr;
	}
	};

	using SpirvWriterTest = SpirvWriterTestHelperBase<testing::Test>;

	template <typename T>
	using SpirvWriterTestWithParam = SpirvWriterTestHelperBase<testing::TestWithParam<T>>;

	} // namespace tint::writer::spirv

	#endif // SRC_TINT_LANG_SPIRV_WRITER_TEST_HELPER_H_