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14dfdc00d9
The print could take a huge amount of time if there are millions of optimization passes running. This patch simply adds an option to disable the print.
61 lines
2.1 KiB
C++
61 lines
2.1 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/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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using namespace llvm;
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static OptBisect &getOptBisector() {
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static OptBisect OptBisector;
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return OptBisector;
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}
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static cl::opt<int> OptBisectLimit("opt-bisect-limit", cl::Hidden,
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cl::init(OptBisect::Disabled), cl::Optional,
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cl::cb<void, int>([](int Limit) {
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getOptBisector().setLimit(Limit);
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}),
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cl::desc("Maximum optimization to perform"));
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static cl::opt<bool> OptBisectVerbose(
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"opt-bisect-verbose",
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cl::desc("Show verbose output when opt-bisect-limit is set"), cl::Hidden,
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cl::init(true), cl::Optional);
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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 StringRef PassName,
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StringRef IRDescription) {
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assert(isEnabled());
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int CurBisectNum = ++LastBisectNum;
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bool ShouldRun = (BisectLimit == -1 || CurBisectNum <= BisectLimit);
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if (OptBisectVerbose)
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printPassMessage(PassName, CurBisectNum, IRDescription, ShouldRun);
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return ShouldRun;
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}
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const int OptBisect::Disabled;
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OptPassGate &llvm::getGlobalPassGate() { return getOptBisector(); }
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