1//===- TestRegions.cpp - Pass to test Region's methods --------------------===//
2//
3// Part of the LLVM Project, 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
9#include "TestDialect.h"
10#include "mlir/Dialect/Func/IR/FuncOps.h"
11#include "mlir/IR/BuiltinOps.h"
12#include "mlir/Pass/Pass.h"
13
14using namespace mlir;
15
16namespace {
17/// This is a test pass that tests Region's takeBody method by making the first
18/// function take the body of the second.
19struct TakeBodyPass
20 : public PassWrapper<TakeBodyPass, OperationPass<ModuleOp>> {
21 MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TakeBodyPass)
22
23 StringRef getArgument() const final { return "test-take-body"; }
24 StringRef getDescription() const final { return "Test Region's takeBody"; }
25
26 void runOnOperation() override {
27 auto module = getOperation();
28
29 SmallVector<func::FuncOp> functions =
30 llvm::to_vector(module.getOps<func::FuncOp>());
31 if (functions.size() != 2) {
32 module.emitError("Expected only two functions in test");
33 signalPassFailure();
34 return;
35 }
36
37 functions[0].getBody().takeBody(functions[1].getBody());
38 }
39};
40
41} // namespace
42
43namespace mlir {
44void registerRegionTestPasses() { PassRegistration<TakeBodyPass>(); }
45} // namespace mlir
46

source code of mlir/test/lib/IR/TestRegions.cpp