YDB Import 559

1 files changed, 0 insertions, 200 deletions

diff --git a/contrib/libs/llvm12/include/llvm/Support/DebugCounter.h b/contrib/libs/llvm12/include/llvm/Support/DebugCounter.h
deleted file mode 100644
index f557993b9f6..00000000000
--- a/contrib/libs/llvm12/include/llvm/Support/DebugCounter.h
+++ /dev/null
@@ -1,200 +0,0 @@
-#pragma once
-
-#ifdef __GNUC__
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-parameter"
-#endif
-
-//===- llvm/Support/DebugCounter.h - Debug counter support ------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-/// \file
-/// This file provides an implementation of debug counters.  Debug
-/// counters are a tool that let you narrow down a miscompilation to a specific
-/// thing happening.
-///
-/// To give a use case: Imagine you have a file, very large, and you
-/// are trying to understand the minimal transformation that breaks it. Bugpoint
-/// and bisection is often helpful here in narrowing it down to a specific pass,
-/// but it's still a very large file, and a very complicated pass to try to
-/// debug.  That is where debug counting steps in.  You can instrument the pass
-/// with a debug counter before it does a certain thing, and depending on the
-/// counts, it will either execute that thing or not.  The debug counter itself
-/// consists of a skip and a count.  Skip is the number of times shouldExecute
-/// needs to be called before it returns true.  Count is the number of times to
-/// return true once Skip is 0.  So a skip=47, count=2 ,would skip the first 47
-/// executions by returning false from shouldExecute, then execute twice, and
-/// then return false again.
-/// Note that a counter set to a negative number will always execute.
-/// For a concrete example, during predicateinfo creation, the renaming pass
-/// replaces each use with a renamed use.
-////
-/// If I use DEBUG_COUNTER to create a counter called "predicateinfo", and
-/// variable name RenameCounter, and then instrument this renaming with a debug
-/// counter, like so:
-///
-/// if (!DebugCounter::shouldExecute(RenameCounter)
-/// <continue or return or whatever not executing looks like>
-///
-/// Now I can, from the command line, make it rename or not rename certain uses
-/// by setting the skip and count.
-/// So for example
-/// bin/opt -debug-counter=predicateinfo-skip=47,predicateinfo-count=1
-/// will skip renaming the first 47 uses, then rename one, then skip the rest.
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SUPPORT_DEBUGCOUNTER_H
-#define LLVM_SUPPORT_DEBUGCOUNTER_H
-
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/UniqueVector.h"
-#include "llvm/Support/Debug.h"
-#include <string>
-
-namespace llvm {
-
-class raw_ostream;
-
-class DebugCounter {
-public:
-  ~DebugCounter();
-
-  /// Returns a reference to the singleton instance.
-  static DebugCounter &instance();
-
-  // Used by the command line option parser to push a new value it parsed.
-  void push_back(const std::string &);
-
-  // Register a counter with the specified name.
-  //
-  // FIXME: Currently, counter registration is required to happen before command
-  // line option parsing. The main reason to register counters is to produce a
-  // nice list of them on the command line, but i'm not sure this is worth it.
-  static unsigned registerCounter(StringRef Name, StringRef Desc) {
-    return instance().addCounter(std::string(Name), std::string(Desc));
-  }
-  inline static bool shouldExecute(unsigned CounterName) {
-    if (!isCountingEnabled())
-      return true;
-
-    auto &Us = instance();
-    auto Result = Us.Counters.find(CounterName);
-    if (Result != Us.Counters.end()) {
-      auto &CounterInfo = Result->second;
-      ++CounterInfo.Count;
-
-      // We only execute while the Skip is not smaller than Count,
-      // and the StopAfter + Skip is larger than Count.
-      // Negative counters always execute.
-      if (CounterInfo.Skip < 0)
-        return true;
-      if (CounterInfo.Skip >= CounterInfo.Count)
-        return false;
-      if (CounterInfo.StopAfter < 0)
-        return true;
-      return CounterInfo.StopAfter + CounterInfo.Skip >= CounterInfo.Count;
-    }
-    // Didn't find the counter, should we warn?
-    return true;
-  }
-
-  // Return true if a given counter had values set (either programatically or on
-  // the command line).  This will return true even if those values are
-  // currently in a state where the counter will always execute.
-  static bool isCounterSet(unsigned ID) {
-    return instance().Counters[ID].IsSet;
-  }
-
-  // Return the Count for a counter. This only works for set counters.
-  static int64_t getCounterValue(unsigned ID) {
-    auto &Us = instance();
-    auto Result = Us.Counters.find(ID);
-    assert(Result != Us.Counters.end() && "Asking about a non-set counter");
-    return Result->second.Count;
-  }
-
-  // Set a registered counter to a given Count value.
-  static void setCounterValue(unsigned ID, int64_t Count) {
-    auto &Us = instance();
-    Us.Counters[ID].Count = Count;
-  }
-
-  // Dump or print the current counter set into llvm::dbgs().
-  LLVM_DUMP_METHOD void dump() const;
-
-  void print(raw_ostream &OS) const;
-
-  // Get the counter ID for a given named counter, or return 0 if none is found.
-  unsigned getCounterId(const std::string &Name) const {
-    return RegisteredCounters.idFor(Name);
-  }
-
-  // Return the number of registered counters.
-  unsigned int getNumCounters() const { return RegisteredCounters.size(); }
-
-  // Return the name and description of the counter with the given ID.
-  std::pair<std::string, std::string> getCounterInfo(unsigned ID) const {
-    return std::make_pair(RegisteredCounters[ID], Counters.lookup(ID).Desc);
-  }
-
-  // Iterate through the registered counters
-  typedef UniqueVector<std::string> CounterVector;
-  CounterVector::const_iterator begin() const {
-    return RegisteredCounters.begin();
-  }
-  CounterVector::const_iterator end() const { return RegisteredCounters.end(); }
-
-  // Force-enables counting all DebugCounters.
-  //
-  // Since DebugCounters are incompatible with threading (not only do they not
-  // make sense, but we'll also see data races), this should only be used in
-  // contexts where we're certain we won't spawn threads.
-  static void enableAllCounters() { instance().Enabled = true; }
-
-private:
-  static bool isCountingEnabled() {
-// Compile to nothing when debugging is off
-#ifdef NDEBUG
-    return false;
-#else
-    return instance().Enabled;
-#endif
-  }
-
-  unsigned addCounter(const std::string &Name, const std::string &Desc) {
-    unsigned Result = RegisteredCounters.insert(Name);
-    Counters[Result] = {};
-    Counters[Result].Desc = Desc;
-    return Result;
-  }
-  // Struct to store counter info.
-  struct CounterInfo {
-    int64_t Count = 0;
-    int64_t Skip = 0;
-    int64_t StopAfter = -1;
-    bool IsSet = false;
-    std::string Desc;
-  };
-  DenseMap<unsigned, CounterInfo> Counters;
-  CounterVector RegisteredCounters;
-
-  // Whether we should do DebugCounting at all. DebugCounters aren't
-  // thread-safe, so this should always be false in multithreaded scenarios.
-  bool Enabled = false;
-};
-
-#define DEBUG_COUNTER(VARNAME, COUNTERNAME, DESC)                              \
-  static const unsigned VARNAME =                                              \
-      DebugCounter::registerCounter(COUNTERNAME, DESC)
-
-} // namespace llvm
-#endif
-
-#ifdef __GNUC__
-#pragma GCC diagnostic pop
-#endif