a0df3ebd15
This allows for proper forward declaration, as opposed to leaking the internal implementation via a using directive. This also allows for all pattern building to go through 'insert' methods on the OwningRewritePatternList, replacing uses of 'push_back' and 'RewriteListBuilder'. PiperOrigin-RevId: 261816316
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
//===- RemoveInstrumentationPass.cpp - Removes instrumentation ------------===//
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//
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// Copyright 2019 The MLIR Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// =============================================================================
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//
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// This file defines a pass to remove any instrumentation ops. It is often one
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// of the final steps when performing quantization and is run after any
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// decisions requiring instrumentation have been made.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/QuantOps/QuantOps.h"
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#include "mlir/IR/MLIRContext.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Quantizer/Transforms/Passes.h"
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using namespace mlir;
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using namespace mlir::quantizer;
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using namespace mlir::quant;
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namespace {
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class RemoveInstrumentationPass
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: public FunctionPass<RemoveInstrumentationPass> {
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void runOnFunction() override;
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};
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template <typename OpTy>
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class RemoveIdentityOpRewrite : public RewritePattern {
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public:
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RemoveIdentityOpRewrite(MLIRContext *context)
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: RewritePattern(OpTy::getOperationName(), 1, context) {}
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PatternMatchResult matchAndRewrite(Operation *op,
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PatternRewriter &rewriter) const override {
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assert(op->getNumOperands() == 1);
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assert(op->getNumResults() == 1);
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rewriter.replaceOp(op, op->getOperand(0));
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return matchSuccess();
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}
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};
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} // end anonymous namespace
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void RemoveInstrumentationPass::runOnFunction() {
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OwningRewritePatternList patterns;
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auto func = getFunction();
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auto *context = &getContext();
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patterns.insert<RemoveIdentityOpRewrite<StatisticsOp>,
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RemoveIdentityOpRewrite<StatisticsRefOp>,
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RemoveIdentityOpRewrite<CoupledRefOp>>(context);
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applyPatternsGreedily(func, std::move(patterns));
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}
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FunctionPassBase *mlir::quantizer::createRemoveInstrumentationPass() {
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return new RemoveInstrumentationPass();
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}
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static PassRegistration<RemoveInstrumentationPass>
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pass("quantizer-remove-instrumentation",
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"Removes instrumentation and hints which have no effect on final "
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"execution");
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