72 lines
2.7 KiB
C++
72 lines
2.7 KiB
C++
//===- Bufferize.cpp - Bufferization for func ops -------------------------===//
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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 bufferization of func.func's and func.call's.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/Func/Transforms/Passes.h"
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#include "mlir/Dialect/Bufferization/IR/Bufferization.h"
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#include "mlir/Dialect/Bufferization/Transforms/Bufferize.h"
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#include "mlir/Dialect/Func/IR/FuncOps.h"
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#include "mlir/Dialect/Func/Transforms/FuncConversions.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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#include "mlir/Transforms/DialectConversion.h"
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namespace mlir {
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#define GEN_PASS_DEF_FUNCBUFFERIZE
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#include "mlir/Dialect/Func/Transforms/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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using namespace mlir::func;
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namespace {
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struct FuncBufferizePass : public impl::FuncBufferizeBase<FuncBufferizePass> {
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using FuncBufferizeBase<FuncBufferizePass>::FuncBufferizeBase;
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void runOnOperation() override {
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auto module = getOperation();
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auto *context = &getContext();
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bufferization::BufferizeTypeConverter typeConverter;
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RewritePatternSet patterns(context);
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ConversionTarget target(*context);
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populateFunctionOpInterfaceTypeConversionPattern<FuncOp>(patterns,
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typeConverter);
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target.addDynamicallyLegalOp<FuncOp>([&](FuncOp op) {
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return typeConverter.isSignatureLegal(op.getFunctionType()) &&
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typeConverter.isLegal(&op.getBody());
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});
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populateCallOpTypeConversionPattern(patterns, typeConverter);
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target.addDynamicallyLegalOp<CallOp>(
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[&](CallOp op) { return typeConverter.isLegal(op); });
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populateBranchOpInterfaceTypeConversionPattern(patterns, typeConverter);
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populateReturnOpTypeConversionPattern(patterns, typeConverter);
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target.addLegalOp<ModuleOp, bufferization::ToTensorOp,
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bufferization::ToMemrefOp>();
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target.markUnknownOpDynamicallyLegal([&](Operation *op) {
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return isNotBranchOpInterfaceOrReturnLikeOp(op) ||
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isLegalForBranchOpInterfaceTypeConversionPattern(op,
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typeConverter) ||
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isLegalForReturnOpTypeConversionPattern(op, typeConverter);
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});
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if (failed(applyFullConversion(module, target, std::move(patterns))))
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signalPassFailure();
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}
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};
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} // namespace
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std::unique_ptr<Pass> mlir::func::createFuncBufferizePass() {
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return std::make_unique<FuncBufferizePass>();
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}
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