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//===- PowerPCSubtarget.cpp - PPC Subtarget Information ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Nate Begeman and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the PPC specific subclass of TargetSubtarget.
//
//===----------------------------------------------------------------------===//
#include "PowerPCSubtarget.h"
#include "llvm/Module.h"
#if defined(__APPLE__)
#include <mach/mach.h>
#include <mach/mach_host.h>
#include <mach/host_info.h>
#include <mach/machine.h>
static boolean_t IsGP() {
host_basic_info_data_t hostInfo;
mach_msg_type_number_t infoCount;
infoCount = HOST_BASIC_INFO_COUNT;
host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo,
&infoCount);
return ((hostInfo.cpu_type == CPU_TYPE_POWERPC) &&
(hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_970));
}
#endif
using namespace llvm;
PPCSubtarget::PPCSubtarget(const Module &M)
: TargetSubtarget(), stackAlignment(16), isGigaProcessor(false), isAIX(false),
isDarwin(false) {
// Set the boolean corresponding to the current target triple, or the default
// if one cannot be determined, to true.
const std::string& TT = M.getTargetTriple();
if (TT.length() > 5) {
isDarwin = TT.find("darwin") != std::string::npos;
} else if (TT.empty()) {
#if defined(_POWER)
isAIX = true;
#elif defined(__APPLE__)
isDarwin = true;
isGigaProcessor = IsGP();
#endif
}
}
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