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067d024b05
- This is an initial step towards -march=native support in Clang, and towards eliminating host dependencies in the targets. See PR5389. - Patch by Roman Divacky! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88768 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
//===- llvm/System/Host.h - Host machine characteristics --------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Methods for querying the nature of the host machine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_HOST_H
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#define LLVM_SYSTEM_HOST_H
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#include <string>
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namespace llvm {
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namespace sys {
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inline bool isLittleEndianHost() {
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union {
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int i;
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char c;
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};
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i = 1;
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return c;
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}
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inline bool isBigEndianHost() {
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return !isLittleEndianHost();
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}
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/// getHostTriple() - Return the target triple of the running
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/// system.
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///
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/// The target triple is a string in the format of:
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/// CPU_TYPE-VENDOR-OPERATING_SYSTEM
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/// or
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/// CPU_TYPE-VENDOR-KERNEL-OPERATING_SYSTEM
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std::string getHostTriple();
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/// getHostCPUName - Get the LLVM name for the host CPU. The particular format
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/// of the name is target dependent, and suitable for passing as -mcpu to the
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/// target which matches the host.
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///
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/// \return - The host CPU name, or empty if the CPU could not be determined.
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std::string getHostCPUName();
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}
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}
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#endif
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