473bdaf2e8
Conversion/ folders were originally intended to store patterns for DialectA->DialectB conversions that depend on both dialects and do not conceptually belong to either of the dialects. As such, DialectA->DialectA conversion does not make sense under Conversion/ and should rather live with the dialect it operates on. Differential Revision: https://reviews.llvm.org/D79569
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
//===- FuncConversions.cpp - Standard Function conversions ----------------===//
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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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#include "mlir/Dialect/StandardOps/Transforms/FuncConversions.h"
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#include "mlir/Dialect/StandardOps/IR/Ops.h"
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#include "mlir/Transforms/DialectConversion.h"
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using namespace mlir;
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namespace {
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// Converts the operand and result types of the Standard's CallOp, used together
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// with the FuncOpSignatureConversion.
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struct CallOpSignatureConversion : public OpConversionPattern<CallOp> {
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CallOpSignatureConversion(MLIRContext *ctx, TypeConverter &converter)
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: OpConversionPattern(ctx), converter(converter) {}
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/// Hook for derived classes to implement combined matching and rewriting.
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LogicalResult
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matchAndRewrite(CallOp callOp, ArrayRef<Value> operands,
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ConversionPatternRewriter &rewriter) const override {
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FunctionType type = callOp.getCalleeType();
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// Convert the original function results.
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SmallVector<Type, 1> convertedResults;
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if (failed(converter.convertTypes(type.getResults(), convertedResults)))
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return failure();
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// Substitute with the new result types from the corresponding FuncType
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// conversion.
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rewriter.replaceOpWithNewOp<CallOp>(callOp, callOp.callee(),
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convertedResults, operands);
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return success();
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}
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/// The type converter to use when rewriting the signature.
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TypeConverter &converter;
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};
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} // end anonymous namespace
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void mlir::populateCallOpTypeConversionPattern(
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OwningRewritePatternList &patterns, MLIRContext *ctx,
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TypeConverter &converter) {
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patterns.insert<CallOpSignatureConversion>(ctx, converter);
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}
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