YDB Import 588

1384556be6811c00a4098d426b8eda9be6d2a541

1 files changed, 0 insertions, 75 deletions

diff --git a/contrib/libs/clang14/lib/Basic/Stack.cpp b/contrib/libs/clang14/lib/Basic/Stack.cpp
deleted file mode 100644
index 5e475093150..00000000000
--- a/contrib/libs/clang14/lib/Basic/Stack.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-//===--- Stack.cpp - Utilities for dealing with stack space ---------------===//
-//
-// 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
-/// Defines utilities for dealing with stack allocation and stack space.
-///
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/Stack.h"
-#include "llvm/ADT/Optional.h"
-#include "llvm/Support/CrashRecoveryContext.h"
-
-#ifdef _MSC_VER
-#include <intrin.h>  // for _AddressOfReturnAddress
-#endif
-
-static LLVM_THREAD_LOCAL void *BottomOfStack = nullptr;
-
-static void *getStackPointer() {
-#if __GNUC__ || __has_builtin(__builtin_frame_address)
-  return __builtin_frame_address(0);
-#elif defined(_MSC_VER)
-  return _AddressOfReturnAddress();
-#else
-  char CharOnStack = 0;
-  // The volatile store here is intended to escape the local variable, to
-  // prevent the compiler from optimizing CharOnStack into anything other
-  // than a char on the stack.
-  //
-  // Tested on: MSVC 2015 - 2019, GCC 4.9 - 9, Clang 3.2 - 9, ICC 13 - 19.
-  char *volatile Ptr = &CharOnStack;
-  return Ptr;
-#endif
-}
-
-void clang::noteBottomOfStack() {
-  if (!BottomOfStack)
-    BottomOfStack = getStackPointer();
-}
-
-bool clang::isStackNearlyExhausted() {
-  // We consider 256 KiB to be sufficient for any code that runs between checks
-  // for stack size.
-  constexpr size_t SufficientStack = 256 << 10;
-
-  // If we don't know where the bottom of the stack is, hope for the best.
-  if (!BottomOfStack)
-    return false;
-
-  intptr_t StackDiff = (intptr_t)getStackPointer() - (intptr_t)BottomOfStack;
-  size_t StackUsage = (size_t)std::abs(StackDiff);
-
-  // If the stack pointer has a surprising value, we do not understand this
-  // stack usage scheme. (Perhaps the target allocates new stack regions on
-  // demand for us.) Don't try to guess what's going on.
-  if (StackUsage > DesiredStackSize)
-    return false;
-
-  return StackUsage >= DesiredStackSize - SufficientStack;
-}
-
-void clang::runWithSufficientStackSpaceSlow(llvm::function_ref<void()> Diag,
-                                            llvm::function_ref<void()> Fn) {
-  llvm::CrashRecoveryContext CRC;
-  CRC.RunSafelyOnThread([&] {
-    noteBottomOfStack();
-    Diag();
-    Fn();
-  }, DesiredStackSize);
-}