95c2d79814
Add materializations to the conversion pass, such that types of non-converted operands are legalized.
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
//===- MemRefToEmitC.cpp - MemRef to EmitC conversion ---------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a pass to convert memref ops into emitc ops.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/MemRefToEmitC/MemRefToEmitCPass.h"
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#include "mlir/Conversion/MemRefToEmitC/MemRefToEmitC.h"
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#include "mlir/Dialect/EmitC/IR/EmitC.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Transforms/DialectConversion.h"
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namespace mlir {
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#define GEN_PASS_DEF_CONVERTMEMREFTOEMITC
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#include "mlir/Conversion/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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namespace {
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struct ConvertMemRefToEmitCPass
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: public impl::ConvertMemRefToEmitCBase<ConvertMemRefToEmitCPass> {
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void runOnOperation() override {
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TypeConverter converter;
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// Fallback for other types.
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converter.addConversion([](Type type) -> std::optional<Type> {
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if (emitc::isSupportedEmitCType(type))
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return type;
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return {};
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});
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populateMemRefToEmitCTypeConversion(converter);
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auto materializeAsUnrealizedCast = [](OpBuilder &builder, Type resultType,
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ValueRange inputs,
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Location loc) -> Value {
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if (inputs.size() != 1)
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return Value();
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return builder.create<UnrealizedConversionCastOp>(loc, resultType, inputs)
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.getResult(0);
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};
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converter.addSourceMaterialization(materializeAsUnrealizedCast);
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converter.addTargetMaterialization(materializeAsUnrealizedCast);
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RewritePatternSet patterns(&getContext());
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populateMemRefToEmitCConversionPatterns(patterns, converter);
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ConversionTarget target(getContext());
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target.addIllegalDialect<memref::MemRefDialect>();
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target.addLegalDialect<emitc::EmitCDialect>();
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if (failed(applyPartialConversion(getOperation(), target,
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std::move(patterns))))
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return signalPassFailure();
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}
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};
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} // namespace
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