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//===- VectorToSPIRVPass.cpp - Vector 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 Vector dialect to SPIRV dialect.
//
//===----------------------------------------------------------------------===//
#include "mlir/Conversion/VectorToSPIRV/VectorToSPIRVPass.h"
#include "mlir/Conversion/VectorToSPIRV/VectorToSPIRV.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Transforms/DialectConversion.h"
namespace mlir {
#define GEN_PASS_DEF_CONVERTVECTORTOSPIRV
#include "mlir/Conversion/Passes.h.inc"
} // namespace mlir
using namespace mlir;
namespace {
struct ConvertVectorToSPIRVPass
: public impl::ConvertVectorToSPIRVBase<ConvertVectorToSPIRVPass> {
void runOnOperation() override;
};
} // namespace
void ConvertVectorToSPIRVPass::runOnOperation() {
MLIRContext *context = &getContext();
Operation *op = getOperation();
auto targetAttr = spirv::lookupTargetEnvOrDefault(op);
std::unique_ptr<ConversionTarget> target =
SPIRVConversionTarget::get(targetAttr);
SPIRVTypeConverter typeConverter(targetAttr);
// 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);
populateVectorToSPIRVPatterns(typeConverter, patterns);
if (failed(applyPartialConversion(op, *target, std::move(patterns))))
return signalPassFailure();
}
std::unique_ptr<OperationPass<>> mlir::createConvertVectorToSPIRVPass() {
return std::make_unique<ConvertVectorToSPIRVPass>();
}
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