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//===- MemRefToSPIRVPass.cpp - MemRef to SPIR-V 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 standard dialect to SPIR-V dialect.
//
//===----------------------------------------------------------------------===//
#include "mlir/Conversion/MemRefToSPIRV/MemRefToSPIRVPass.h"
#include "../PassDetail.h"
#include "mlir/Conversion/MemRefToSPIRV/MemRefToSPIRV.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
using namespace mlir;
namespace {
/// A pass converting MLIR MemRef operations into the SPIR-V dialect.
class ConvertMemRefToSPIRVPass
: public ConvertMemRefToSPIRVBase<ConvertMemRefToSPIRVPass> {
void runOnOperation() override;
};
} // namespace
void ConvertMemRefToSPIRVPass::runOnOperation() {
MLIRContext *context = &getContext();
ModuleOp module = getOperation();
auto targetAttr = spirv::lookupTargetEnvOrDefault(module);
std::unique_ptr<ConversionTarget> target =
SPIRVConversionTarget::get(targetAttr);
SPIRVTypeConverter::Options options;
options.boolNumBits = this->boolNumBits;
SPIRVTypeConverter typeConverter(targetAttr, options);
// Use UnrealizedConversionCast as the bridge so that we don't need to pull in
// patterns for other dialects.
auto addUnrealizedCast = [](OpBuilder &builder, Type type, ValueRange inputs,
Location loc) {
auto cast = builder.create<UnrealizedConversionCastOp>(loc, type, inputs);
return Optional<Value>(cast.getResult(0));
};
typeConverter.addSourceMaterialization(addUnrealizedCast);
typeConverter.addTargetMaterialization(addUnrealizedCast);
target->addLegalOp<UnrealizedConversionCastOp>();
RewritePatternSet patterns(context);
populateMemRefToSPIRVPatterns(typeConverter, patterns);
if (failed(applyPartialConversion(module, *target, std::move(patterns))))
return signalPassFailure();
}
std::unique_ptr<OperationPass<ModuleOp>>
mlir::createConvertMemRefToSPIRVPass() {
return std::make_unique<ConvertMemRefToSPIRVPass>();
}
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