Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /proc/thread-self/root/usr/lib/llvm-6.0/include/llvm/Analysis/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

//===- Analysis/ObjectUtils.h - analysis utils for object files -*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ANALYSIS_OBJECT_UTILS_H
#define LLVM_ANALYSIS_OBJECT_UTILS_H

#include "llvm/IR/GlobalVariable.h"

namespace llvm {

/// True if GV can be left out of the object symbol table. This is the case
/// for linkonce_odr values whose address is not significant. While legal, it is
/// not normally profitable to omit them from the .o symbol table. Using this
/// analysis makes sense when the information can be passed down to the linker
/// or we are in LTO.
inline bool canBeOmittedFromSymbolTable(const GlobalValue *GV) {
  if (!GV->hasLinkOnceODRLinkage())
    return false;

  // We assume that anyone who sets global unnamed_addr on a non-constant knows
  // what they're doing.
  if (GV->hasGlobalUnnamedAddr())
    return true;

  // If it is a non constant variable, it needs to be uniqued across shared
  // objects.
  if (auto *Var = dyn_cast<GlobalVariable>(GV))
    if (!Var->isConstant())
      return false;

  return GV->hasAtLeastLocalUnnamedAddr();
}

}

#endif