Chris Lattner dc4e913be9 [PatternMatch] Big mechanical rename OwningRewritePatternList -> RewritePatternSet and insert -> add. NFC
This doesn't change APIs, this just cleans up the many in-tree uses of these
names to use the new preferred names.  We'll keep the old names around for a
couple weeks to help transitions.

Differential Revision: https://reviews.llvm.org/D99127
2021-03-22 17:20:50 -07:00

47 lines
1.6 KiB
C++

//===- TestTraits.cpp - Test trait folding --------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "TestDialect.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
using namespace mlir;
using namespace mlir::test;
//===----------------------------------------------------------------------===//
// Trait Folder.
//===----------------------------------------------------------------------===//
OpFoldResult TestInvolutionTraitFailingOperationFolderOp::fold(
ArrayRef<Attribute> operands) {
// This failure should cause the trait fold to run instead.
return {};
}
OpFoldResult TestInvolutionTraitSuccesfulOperationFolderOp::fold(
ArrayRef<Attribute> operands) {
auto argumentOp = getOperand();
// The success case should cause the trait fold to be supressed.
return argumentOp.getDefiningOp() ? argumentOp : OpFoldResult{};
}
namespace {
struct TestTraitFolder : public PassWrapper<TestTraitFolder, FunctionPass> {
void runOnFunction() override {
(void)applyPatternsAndFoldGreedily(getFunction(),
RewritePatternSet(&getContext()));
}
};
} // end anonymous namespace
namespace mlir {
void registerTestTraitsPass() {
PassRegistration<TestTraitFolder>("test-trait-folder", "Run trait folding");
}
} // namespace mlir