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Currently there is an issue where the legacy pass manager uses a different OptBisect counter than the new pass manager. This fix makes the npm OptBisectInstrumentation use the global OptBisect. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D92897
59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
//===- llvm/IR/OptBisect/Bisect.cpp - LLVM Bisect support -----------------===//
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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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/// \file
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/// This file implements support for a bisecting optimizations based on a
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/// command line option.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/OptBisect.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Pass.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cassert>
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#include <limits>
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#include <string>
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using namespace llvm;
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static cl::opt<int> OptBisectLimit("opt-bisect-limit", cl::Hidden,
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cl::init(std::numeric_limits<int>::max()),
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cl::Optional,
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cl::desc("Maximum optimization to perform"));
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OptBisect::OptBisect() : OptPassGate() {
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BisectEnabled = OptBisectLimit != std::numeric_limits<int>::max();
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}
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static void printPassMessage(const StringRef &Name, int PassNum,
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StringRef TargetDesc, bool Running) {
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StringRef Status = Running ? "" : "NOT ";
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errs() << "BISECT: " << Status << "running pass "
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<< "(" << PassNum << ") " << Name << " on " << TargetDesc << "\n";
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}
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bool OptBisect::shouldRunPass(const Pass *P, StringRef IRDescription) {
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assert(BisectEnabled);
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return checkPass(P->getPassName(), IRDescription);
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}
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bool OptBisect::checkPass(const StringRef PassName,
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const StringRef TargetDesc) {
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assert(BisectEnabled);
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int CurBisectNum = ++LastBisectNum;
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bool ShouldRun = (OptBisectLimit == -1 || CurBisectNum <= OptBisectLimit);
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printPassMessage(PassName, CurBisectNum, TargetDesc, ShouldRun);
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return ShouldRun;
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}
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ManagedStatic<OptBisect> llvm::OptBisector;
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