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//===- SPIRVToLLVMPass.cpp - SPIR-V to LLVM Passes ------------------------===//
//
// 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 implements a pass to convert MLIR SPIR-V ops into LLVM ops
//
//===----------------------------------------------------------------------===//
#include "mlir/Conversion/SPIRVToLLVM/SPIRVToLLVMPass.h"
#include "mlir/Conversion/LLVMCommon/TypeConverter.h"
#include "mlir/Conversion/SPIRVToLLVM/SPIRVToLLVM.h"
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVEnums.h"
#include "mlir/Pass/Pass.h"
namespace mlir {
#define GEN_PASS_DEF_CONVERTSPIRVTOLLVMPASS
#include "mlir/Conversion/Passes.h.inc"
} // namespace mlir
using namespace mlir;
namespace {
/// A pass converting MLIR SPIR-V operations into LLVM dialect.
class ConvertSPIRVToLLVMPass
: public impl::ConvertSPIRVToLLVMPassBase<ConvertSPIRVToLLVMPass> {
void runOnOperation() override;
public:
using Base::Base;
};
} // namespace
void ConvertSPIRVToLLVMPass::runOnOperation() {
MLIRContext *context = &getContext();
ModuleOp module = getOperation();
LowerToLLVMOptions options(&getContext());
LLVMTypeConverter converter(&getContext(), options);
// Encode global variable's descriptor set and binding if they exist.
encodeBindAttribute(module);
RewritePatternSet patterns(context);
populateSPIRVToLLVMTypeConversion(converter, clientAPI);
populateSPIRVToLLVMModuleConversionPatterns(converter, patterns);
populateSPIRVToLLVMConversionPatterns(converter, patterns, clientAPI);
populateSPIRVToLLVMFunctionConversionPatterns(converter, patterns);
ConversionTarget target(*context);
target.addIllegalDialect<spirv::SPIRVDialect>();
target.addLegalDialect<LLVM::LLVMDialect>();
if (clientAPI != spirv::ClientAPI::OpenCL &&
clientAPI != spirv::ClientAPI::Unknown)
getOperation()->emitWarning()
<< "address space mapping for client '"
<< spirv::stringifyClientAPI(clientAPI) << "' not implemented";
// Set `ModuleOp` as legal for `spirv.module` conversion.
target.addLegalOp<ModuleOp>();
if (failed(applyPartialConversion(module, target, std::move(patterns))))
signalPassFailure();
}
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