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