mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-03 14:21:30 +00:00
6e9b5eb51b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147608 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
//===- llvm/Support/Host.h - Host machine characteristics --------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Methods for querying the nature of the host machine.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SYSTEM_HOST_H
|
|
#define LLVM_SYSTEM_HOST_H
|
|
|
|
#include "llvm/ADT/StringMap.h"
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
namespace sys {
|
|
|
|
inline bool isLittleEndianHost() {
|
|
union {
|
|
int i;
|
|
char c;
|
|
};
|
|
i = 1;
|
|
return c;
|
|
}
|
|
|
|
inline bool isBigEndianHost() {
|
|
return !isLittleEndianHost();
|
|
}
|
|
|
|
/// getDefaultTargetTriple() - Return the default target triple the compiler
|
|
/// has been configured to produce code for.
|
|
///
|
|
/// The target triple is a string in the format of:
|
|
/// CPU_TYPE-VENDOR-OPERATING_SYSTEM
|
|
/// or
|
|
/// CPU_TYPE-VENDOR-KERNEL-OPERATING_SYSTEM
|
|
std::string getDefaultTargetTriple();
|
|
|
|
/// getHostCPUName - Get the LLVM name for the host CPU. The particular format
|
|
/// of the name is target dependent, and suitable for passing as -mcpu to the
|
|
/// target which matches the host.
|
|
///
|
|
/// \return - The host CPU name, or empty if the CPU could not be determined.
|
|
std::string getHostCPUName();
|
|
|
|
/// getHostCPUFeatures - Get the LLVM names for the host CPU features.
|
|
/// The particular format of the names are target dependent, and suitable for
|
|
/// passing as -mattr to the target which matches the host.
|
|
///
|
|
/// \param Features - A string mapping feature names to either
|
|
/// true (if enabled) or false (if disabled). This routine makes no guarantees
|
|
/// about exactly which features may appear in this map, except that they are
|
|
/// all valid LLVM feature names.
|
|
///
|
|
/// \return - True on success.
|
|
bool getHostCPUFeatures(StringMap<bool> &Features);
|
|
}
|
|
}
|
|
|
|
#endif
|