1 files changed, 0 insertions, 124 deletions

diff --git a/contrib/llvm/lib/Support/CodeGenCoverage.cpp b/contrib/llvm/lib/Support/CodeGenCoverage.cpp
deleted file mode 100644
index f39eb7533b43..000000000000
--- a/contrib/llvm/lib/Support/CodeGenCoverage.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-//===- lib/Support/CodeGenCoverage.cpp -------------------------------------==//
-//
-// 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 implements the CodeGenCoverage class.
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/CodeGenCoverage.h"
-
-#include "llvm/Config/llvm-config.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/Mutex.h"
-#include "llvm/Support/ScopedPrinter.h"
-#include "llvm/Support/ToolOutputFile.h"
-
-#if LLVM_ON_UNIX
-#include <unistd.h>
-#elif defined(_WIN32)
-#include <windows.h>
-#endif
-
-using namespace llvm;
-
-static sys::SmartMutex<true> OutputMutex;
-
-CodeGenCoverage::CodeGenCoverage() {}
-
-void CodeGenCoverage::setCovered(uint64_t RuleID) {
-  if (RuleCoverage.size() <= RuleID)
-    RuleCoverage.resize(RuleID + 1, 0);
-  RuleCoverage[RuleID] = true;
-}
-
-bool CodeGenCoverage::isCovered(uint64_t RuleID) const {
-  if (RuleCoverage.size() <= RuleID)
-    return false;
-  return RuleCoverage[RuleID];
-}
-
-iterator_range<CodeGenCoverage::const_covered_iterator>
-CodeGenCoverage::covered() const {
-  return RuleCoverage.set_bits();
-}
-
-bool CodeGenCoverage::parse(MemoryBuffer &Buffer, StringRef BackendName) {
-  const char *CurPtr = Buffer.getBufferStart();
-
-  while (CurPtr != Buffer.getBufferEnd()) {
-    // Read the backend name from the input.
-    const char *LexedBackendName = CurPtr;
-    while (*CurPtr++ != 0)
-      ;
-    if (CurPtr == Buffer.getBufferEnd())
-      return false; // Data is invalid, expected rule id's to follow.
-
-    bool IsForThisBackend = BackendName.equals(LexedBackendName);
-    while (CurPtr != Buffer.getBufferEnd()) {
-      if (std::distance(CurPtr, Buffer.getBufferEnd()) < 8)
-        return false; // Data is invalid. Not enough bytes for another rule id.
-
-      uint64_t RuleID = support::endian::read64(CurPtr, support::native);
-      CurPtr += 8;
-
-      // ~0ull terminates the rule id list.
-      if (RuleID == ~0ull)
-        break;
-
-      // Anything else, is recorded or ignored depending on whether it's
-      // intended for the backend we're interested in.
-      if (IsForThisBackend)
-        setCovered(RuleID);
-    }
-  }
-
-  return true;
-}
-
-bool CodeGenCoverage::emit(StringRef CoveragePrefix,
-                           StringRef BackendName) const {
-  if (!CoveragePrefix.empty() && !RuleCoverage.empty()) {
-    sys::SmartScopedLock<true> Lock(OutputMutex);
-
-    // We can handle locking within a process easily enough but we don't want to
-    // manage it between multiple processes. Use the process ID to ensure no
-    // more than one process is ever writing to the same file at the same time.
-    std::string Pid =
-#if LLVM_ON_UNIX
-        llvm::to_string(::getpid());
-#elif defined(_WIN32)
-        llvm::to_string(::GetCurrentProcessId());
-#else
-        "";
-#endif
-
-    std::string CoverageFilename = (CoveragePrefix + Pid).str();
-
-    std::error_code EC;
-    sys::fs::OpenFlags OpenFlags = sys::fs::F_Append;
-    std::unique_ptr<ToolOutputFile> CoverageFile =
-        llvm::make_unique<ToolOutputFile>(CoverageFilename, EC, OpenFlags);
-    if (EC)
-      return false;
-
-    uint64_t Zero = 0;
-    uint64_t InvZero = ~0ull;
-    CoverageFile->os() << BackendName;
-    CoverageFile->os().write((const char *)&Zero, sizeof(unsigned char));
-    for (uint64_t I : RuleCoverage.set_bits())
-      CoverageFile->os().write((const char *)&I, sizeof(uint64_t));
-    CoverageFile->os().write((const char *)&InvZero, sizeof(uint64_t));
-
-    CoverageFile->keep();
-  }
-
-  return true;
-}
-
-void CodeGenCoverage::reset() { RuleCoverage.resize(0); }