73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
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//===-- RemoveShapeConstraints.cpp - Remove Shape Cstr and Assuming Ops ---===//
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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 "mlir/Dialect/Shape/Transforms/Passes.h"
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#include "mlir/Dialect/Func/IR/FuncOps.h"
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#include "mlir/Dialect/Shape/IR/Shape.h"
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#include "mlir/Transforms/DialectConversion.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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namespace mlir {
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#define GEN_PASS_DEF_REMOVESHAPECONSTRAINTS
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#include "mlir/Dialect/Shape/Transforms/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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namespace {
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/// Removal patterns.
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class RemoveCstrBroadcastableOp
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: public OpRewritePattern<shape::CstrBroadcastableOp> {
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public:
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using OpRewritePattern::OpRewritePattern;
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LogicalResult matchAndRewrite(shape::CstrBroadcastableOp op,
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PatternRewriter &rewriter) const override {
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rewriter.replaceOpWithNewOp<shape::ConstWitnessOp>(op.getOperation(), true);
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return success();
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}
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};
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class RemoveCstrEqOp : public OpRewritePattern<shape::CstrEqOp> {
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public:
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using OpRewritePattern::OpRewritePattern;
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LogicalResult matchAndRewrite(shape::CstrEqOp op,
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PatternRewriter &rewriter) const override {
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rewriter.replaceOpWithNewOp<shape::ConstWitnessOp>(op.getOperation(), true);
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return success();
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}
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};
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/// Removal pass.
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class RemoveShapeConstraintsPass
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: public impl::RemoveShapeConstraintsBase<RemoveShapeConstraintsPass> {
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void runOnOperation() override {
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MLIRContext &ctx = getContext();
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RewritePatternSet patterns(&ctx);
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populateRemoveShapeConstraintsPatterns(patterns);
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(void)applyPatternsAndFoldGreedily(getOperation(), std::move(patterns));
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}
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};
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} // namespace
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void mlir::populateRemoveShapeConstraintsPatterns(RewritePatternSet &patterns) {
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patterns.add<RemoveCstrBroadcastableOp, RemoveCstrEqOp>(
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patterns.getContext());
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}
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std::unique_ptr<OperationPass<func::FuncOp>>
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mlir::createRemoveShapeConstraintsPass() {
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return std::make_unique<RemoveShapeConstraintsPass>();
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}
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