50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
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//===- TestTraits.cpp - Test trait folding --------------------------------===//
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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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#include "TestDialect.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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using namespace mlir;
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using namespace test;
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//===----------------------------------------------------------------------===//
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// Trait Folder.
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//===----------------------------------------------------------------------===//
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OpFoldResult TestInvolutionTraitFailingOperationFolderOp::fold(
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FoldAdaptor adaptor) {
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// This failure should cause the trait fold to run instead.
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return {};
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}
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OpFoldResult TestInvolutionTraitSuccesfulOperationFolderOp::fold(
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FoldAdaptor adaptor) {
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auto argumentOp = getOperand();
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// The success case should cause the trait fold to be supressed.
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return argumentOp.getDefiningOp() ? argumentOp : OpFoldResult{};
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}
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namespace {
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struct TestTraitFolder
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: public PassWrapper<TestTraitFolder, OperationPass<func::FuncOp>> {
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MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestTraitFolder)
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StringRef getArgument() const final { return "test-trait-folder"; }
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StringRef getDescription() const final { return "Run trait folding"; }
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void runOnOperation() override {
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(void)applyPatternsAndFoldGreedily(getOperation(),
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RewritePatternSet(&getContext()));
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}
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};
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} // namespace
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namespace mlir {
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void registerTestTraitsPass() { PassRegistration<TestTraitFolder>(); }
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} // namespace mlir
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