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//===-- AArch64Subtarget.cpp - AArch64 Subtarget Information --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the AArch64 specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#include "AArch64Subtarget.h"
#include "AArch64RegisterInfo.h"
#include "MCTargetDesc/AArch64MCTargetDesc.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Target/TargetSubtargetInfo.h"
#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "AArch64GenSubtargetInfo.inc"
using namespace llvm;
// Pin the vtable to this file.
void AArch64Subtarget::anchor() {}
AArch64Subtarget::AArch64Subtarget(StringRef TT, StringRef CPU, StringRef FS,
bool LittleEndian)
: AArch64GenSubtargetInfo(TT, CPU, FS), ARMProcFamily(Others),
HasFPARMv8(false), HasNEON(false), HasCrypto(false), TargetTriple(TT),
CPUString(CPU), IsLittleEndian(LittleEndian) {
initializeSubtargetFeatures(CPU, FS);
}
void AArch64Subtarget::initializeSubtargetFeatures(StringRef CPU,
StringRef FS) {
if (CPU.empty())
CPUString = "generic";
std::string FullFS = FS;
if (CPUString == "generic") {
// Enable FP by default.
if (FullFS.empty())
FullFS = "+fp-armv8";
else
FullFS = "+fp-armv8," + FullFS;
}
ParseSubtargetFeatures(CPU, FullFS);
}
bool AArch64Subtarget::GVIsIndirectSymbol(const GlobalValue *GV,
Reloc::Model RelocM) const {
if (RelocM == Reloc::Static)
return false;
return !GV->hasLocalLinkage() && !GV->hasHiddenVisibility();
}
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