67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
//===- RemoveInstrumentationPass.cpp - Removes instrumentation ------------===//
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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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//
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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/Quant/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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/// Include the generated pass utilities.
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#define GEN_PASS_QuantizerRemoveInstrumentation
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#include "mlir/Quantizer/Transforms/Passes.h.inc"
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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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LogicalResult 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 success();
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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, patterns);
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}
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std::unique_ptr<OpPassBase<FuncOp>>
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mlir::quantizer::createRemoveInstrumentationPass() {
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return std::make_unique<RemoveInstrumentationPass>();
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}
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