SerializationTest.cpp
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//===- SerializationTest.cpp - SPIR-V Serialization Tests -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains corner case tests for the SPIR-V serializer that are not
// covered by normal serialization and deserialization roundtripping.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/SPIRV/Serialization.h"
#include "mlir/Dialect/SPIRV/SPIRVAttributes.h"
#include "mlir/Dialect/SPIRV/SPIRVBinaryUtils.h"
#include "mlir/Dialect/SPIRV/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/SPIRVModule.h"
#include "mlir/Dialect/SPIRV/SPIRVOps.h"
#include "mlir/Dialect/SPIRV/SPIRVTypes.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/Location.h"
#include "mlir/IR/MLIRContext.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Sequence.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "gmock/gmock.h"
using namespace mlir;
//===----------------------------------------------------------------------===//
// Test Fixture
//===----------------------------------------------------------------------===//
class SerializationTest : public ::testing::Test {
protected:
SerializationTest() : context(/*loadAllDialects=*/false) {
context.getOrLoadDialect<mlir::spirv::SPIRVDialect>();
createModuleOp();
}
void createModuleOp() {
OpBuilder builder(&context);
OperationState state(UnknownLoc::get(&context),
spirv::ModuleOp::getOperationName());
state.addAttribute("addressing_model",
builder.getI32IntegerAttr(static_cast<uint32_t>(
spirv::AddressingModel::Logical)));
state.addAttribute("memory_model",
builder.getI32IntegerAttr(
static_cast<uint32_t>(spirv::MemoryModel::GLSL450)));
state.addAttribute("vce_triple",
spirv::VerCapExtAttr::get(
spirv::Version::V_1_0, ArrayRef<spirv::Capability>(),
ArrayRef<spirv::Extension>(), &context));
spirv::ModuleOp::build(builder, state);
module = cast<spirv::ModuleOp>(Operation::create(state));
}
Type getFloatStructType() {
OpBuilder opBuilder(module->body());
llvm::SmallVector<Type, 1> elementTypes{opBuilder.getF32Type()};
llvm::SmallVector<spirv::StructType::OffsetInfo, 1> offsetInfo{0};
auto structType = spirv::StructType::get(elementTypes, offsetInfo);
return structType;
}
void addGlobalVar(Type type, llvm::StringRef name) {
OpBuilder opBuilder(module->body());
auto ptrType = spirv::PointerType::get(type, spirv::StorageClass::Uniform);
opBuilder.create<spirv::GlobalVariableOp>(
UnknownLoc::get(&context), TypeAttr::get(ptrType),
opBuilder.getStringAttr(name), nullptr);
}
bool findInstruction(llvm::function_ref<bool(spirv::Opcode opcode,
ArrayRef<uint32_t> operands)>
matchFn) {
auto binarySize = binary.size();
auto begin = binary.begin();
auto currOffset = spirv::kHeaderWordCount;
while (currOffset < binarySize) {
auto wordCount = binary[currOffset] >> 16;
if (!wordCount || (currOffset + wordCount > binarySize)) {
return false;
}
spirv::Opcode opcode =
static_cast<spirv::Opcode>(binary[currOffset] & 0xffff);
if (matchFn(opcode,
llvm::ArrayRef<uint32_t>(begin + currOffset + 1,
begin + currOffset + wordCount))) {
return true;
}
currOffset += wordCount;
}
return false;
}
protected:
MLIRContext context;
spirv::OwningSPIRVModuleRef module;
SmallVector<uint32_t, 0> binary;
};
//===----------------------------------------------------------------------===//
// Block decoration
//===----------------------------------------------------------------------===//
TEST_F(SerializationTest, BlockDecorationTest) {
auto structType = getFloatStructType();
addGlobalVar(structType, "var0");
ASSERT_TRUE(succeeded(spirv::serialize(module.get(), binary)));
auto hasBlockDecoration = [](spirv::Opcode opcode,
ArrayRef<uint32_t> operands) -> bool {
if (opcode != spirv::Opcode::OpDecorate || operands.size() != 2)
return false;
return operands[1] == static_cast<uint32_t>(spirv::Decoration::Block);
};
EXPECT_TRUE(findInstruction(hasBlockDecoration));
}