SystemZSubtarget.cpp [plain text]
#include "SystemZSubtarget.h"
#include "MCTargetDesc/SystemZMCTargetDesc.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/Support/Host.h"
using namespace llvm;
#define DEBUG_TYPE "systemz-subtarget"
#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "SystemZGenSubtargetInfo.inc"
void SystemZSubtarget::anchor() {}
SystemZSubtarget &
SystemZSubtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS) {
std::string CPUName = CPU;
if (CPUName.empty())
CPUName = "generic";
#if defined(__linux__) && defined(__s390x__)
if (CPUName == "generic")
CPUName = sys::getHostCPUName();
#endif
ParseSubtargetFeatures(CPUName, FS);
return *this;
}
SystemZSubtarget::SystemZSubtarget(const std::string &TT,
const std::string &CPU,
const std::string &FS,
const TargetMachine &TM)
: SystemZGenSubtargetInfo(TT, CPU, FS), HasDistinctOps(false),
HasLoadStoreOnCond(false), HasHighWord(false), HasFPExtension(false),
HasFastSerialization(false), HasInterlockedAccess1(false),
TargetTriple(TT), InstrInfo(initializeSubtargetDependencies(CPU, FS)),
TLInfo(TM, *this), TSInfo(*TM.getDataLayout()), FrameLowering() {}
static bool bindsLocally(const GlobalValue *GV, Reloc::Model RM) {
if (RM == Reloc::Static)
return true;
return GV->hasLocalLinkage() || !GV->hasDefaultVisibility();
}
bool SystemZSubtarget::isPC32DBLSymbol(const GlobalValue *GV,
Reloc::Model RM,
CodeModel::Model CM) const {
if (GV->getAlignment() == 1)
return false;
if (CM == CodeModel::Small)
return bindsLocally(GV, RM);
return false;
}