Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/lib/IR/OptBisect.cpp

@@ -1,118 +0,0 @@
-//===- llvm/IR/OptBisect/Bisect.cpp - LLVM Bisect support -----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-/// \file
-/// This file implements support for a bisecting optimizations based on a
-/// command line option.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/IR/OptBisect.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Analysis/CallGraph.h"
-#include "llvm/Analysis/CallGraphSCCPass.h"
-#include "llvm/Analysis/LoopInfo.h"
-#include "llvm/Analysis/RegionInfo.h"
-#include "llvm/IR/BasicBlock.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/raw_ostream.h"
-#include <cassert>
-#include <limits>
-#include <string>
-
-using namespace llvm;
-
-static cl::opt<int> OptBisectLimit("opt-bisect-limit", cl::Hidden,
-                                   cl::init(std::numeric_limits<int>::max()),
-                                   cl::Optional,
-                                   cl::desc("Maximum optimization to perform"));
-
-OptBisect::OptBisect() {
-  BisectEnabled = OptBisectLimit != std::numeric_limits<int>::max();
-}
-
-static void printPassMessage(const StringRef &Name, int PassNum,
-                             StringRef TargetDesc, bool Running) {
-  StringRef Status = Running ? "" : "NOT ";
-  errs() << "BISECT: " << Status << "running pass "
-         << "(" << PassNum << ") " << Name << " on " << TargetDesc << "\n";
-}
-
-static std::string getDescription(const Module &M) {
-  return "module (" + M.getName().str() + ")";
-}
-
-static std::string getDescription(const Function &F) {
-  return "function (" + F.getName().str() + ")";
-}
-
-static std::string getDescription(const BasicBlock &BB) {
-  return "basic block (" + BB.getName().str() + ") in function (" +
-         BB.getParent()->getName().str() + ")";
-}
-
-static std::string getDescription(const Loop &L) {
-  // FIXME: Move into LoopInfo so we can get a better description
-  // (and avoid a circular dependency between IR and Analysis).
-  return "loop";
-}
-
-static std::string getDescription(const Region &R) {
-  // FIXME: Move into RegionInfo so we can get a better description
-  // (and avoid a circular dependency between IR and Analysis).
-  return "region";
-}
-
-static std::string getDescription(const CallGraphSCC &SCC) {
-  // FIXME: Move into CallGraphSCCPass to avoid circular dependency between
-  // IR and Analysis.
-  std::string Desc = "SCC (";
-  bool First = true;
-  for (CallGraphNode *CGN : SCC) {
-    if (First)
-      First = false;
-    else
-      Desc += ", ";
-    Function *F = CGN->getFunction();
-    if (F)
-      Desc += F->getName();
-    else
-      Desc += "<<null function>>";
-  }
-  Desc += ")";
-  return Desc;
-}
-
-// Force instantiations.
-template bool OptBisect::shouldRunPass(const Pass *, const Module &);
-template bool OptBisect::shouldRunPass(const Pass *, const Function &);
-template bool OptBisect::shouldRunPass(const Pass *, const BasicBlock &);
-template bool OptBisect::shouldRunPass(const Pass *, const Loop &);
-template bool OptBisect::shouldRunPass(const Pass *, const CallGraphSCC &);
-template bool OptBisect::shouldRunPass(const Pass *, const Region &);
-
-template <class UnitT>
-bool OptBisect::shouldRunPass(const Pass *P, const UnitT &U) {
-  if (!BisectEnabled)
-    return true;
-  return checkPass(P->getPassName(), getDescription(U));
-}
-
-bool OptBisect::checkPass(const StringRef PassName,
-                          const StringRef TargetDesc) {
-  assert(BisectEnabled);
-
-  int CurBisectNum = ++LastBisectNum;
-  bool ShouldRun = (OptBisectLimit == -1 || CurBisectNum <= OptBisectLimit);
-  printPassMessage(PassName, CurBisectNum, TargetDesc, ShouldRun);
-  return ShouldRun;
-}