1//===- StandalonePasses.cpp - Standalone passes -----------------*- C++ -*-===//
2//
3// This file is licensed under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8#include "mlir/Dialect/Func/IR/FuncOps.h"
9#include "mlir/IR/PatternMatch.h"
10#include "mlir/Rewrite/FrozenRewritePatternSet.h"
11#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
12
13#include "Standalone/StandalonePasses.h"
14
15namespace mlir::standalone {
16#define GEN_PASS_DEF_STANDALONESWITCHBARFOO
17#include "Standalone/StandalonePasses.h.inc"
18
19namespace {
20class StandaloneSwitchBarFooRewriter : public OpRewritePattern<func::FuncOp> {
21public:
22 using OpRewritePattern<func::FuncOp>::OpRewritePattern;
23 LogicalResult matchAndRewrite(func::FuncOp op,
24 PatternRewriter &rewriter) const final {
25 if (op.getSymName() == "bar") {
26 rewriter.modifyOpInPlace(op, [&op]() { op.setSymName("foo"); });
27 return success();
28 }
29 return failure();
30 }
31};
32
33class StandaloneSwitchBarFoo
34 : public impl::StandaloneSwitchBarFooBase<StandaloneSwitchBarFoo> {
35public:
36 using impl::StandaloneSwitchBarFooBase<
37 StandaloneSwitchBarFoo>::StandaloneSwitchBarFooBase;
38 void runOnOperation() final {
39 RewritePatternSet patterns(&getContext());
40 patterns.add<StandaloneSwitchBarFooRewriter>(&getContext());
41 FrozenRewritePatternSet patternSet(std::move(patterns));
42 if (failed(applyPatternsGreedily(getOperation(), patternSet)))
43 signalPassFailure();
44 }
45};
46} // namespace
47} // namespace mlir::standalone
48

source code of mlir/examples/standalone/lib/Standalone/StandalonePasses.cpp