4157455425
The only benefit of FunctionPass is that it filters out function declarations. This isn't enough to justify carrying it around, as we can simplify filter out declarations when necessary within the pass. We can also explore with better scheduling primitives to filter out declarations at the pipeline level in the future. The definition of FunctionPass is left intact for now to allow time for downstream users to migrate. Differential Revision: https://reviews.llvm.org/D117182
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
//===-- RemoveShapeConstraints.cpp - Remove Shape Cstr and Assuming Ops ---===//
|
|
//
|
|
// 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 "PassDetail.h"
|
|
#include "mlir/Dialect/Shape/IR/Shape.h"
|
|
#include "mlir/Dialect/Shape/Transforms/Passes.h"
|
|
#include "mlir/Transforms/DialectConversion.h"
|
|
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
|
|
|
|
using namespace mlir;
|
|
|
|
namespace {
|
|
/// Removal patterns.
|
|
class RemoveCstrBroadcastableOp
|
|
: public OpRewritePattern<shape::CstrBroadcastableOp> {
|
|
public:
|
|
using OpRewritePattern::OpRewritePattern;
|
|
|
|
LogicalResult matchAndRewrite(shape::CstrBroadcastableOp op,
|
|
PatternRewriter &rewriter) const override {
|
|
rewriter.replaceOpWithNewOp<shape::ConstWitnessOp>(op.getOperation(), true);
|
|
return success();
|
|
}
|
|
};
|
|
|
|
class RemoveCstrEqOp : public OpRewritePattern<shape::CstrEqOp> {
|
|
public:
|
|
using OpRewritePattern::OpRewritePattern;
|
|
|
|
LogicalResult matchAndRewrite(shape::CstrEqOp op,
|
|
PatternRewriter &rewriter) const override {
|
|
rewriter.replaceOpWithNewOp<shape::ConstWitnessOp>(op.getOperation(), true);
|
|
return success();
|
|
}
|
|
};
|
|
|
|
/// Removal pass.
|
|
class RemoveShapeConstraintsPass
|
|
: public RemoveShapeConstraintsBase<RemoveShapeConstraintsPass> {
|
|
|
|
void runOnOperation() override {
|
|
MLIRContext &ctx = getContext();
|
|
|
|
RewritePatternSet patterns(&ctx);
|
|
populateRemoveShapeConstraintsPatterns(patterns);
|
|
|
|
(void)applyPatternsAndFoldGreedily(getOperation(), std::move(patterns));
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
void mlir::populateRemoveShapeConstraintsPatterns(RewritePatternSet &patterns) {
|
|
patterns.add<RemoveCstrBroadcastableOp, RemoveCstrEqOp>(
|
|
patterns.getContext());
|
|
}
|
|
|
|
std::unique_ptr<OperationPass<FuncOp>>
|
|
mlir::createRemoveShapeConstraintsPass() {
|
|
return std::make_unique<RemoveShapeConstraintsPass>();
|
|
}
|