}
static bool getITDeprecationInfo(MCInst &MI, MCSubtargetInfo &STI,
- std::string &Info) {
- if (STI.getFeatureBits() & llvm::ARM::HasV8Ops &&
- MI.getOperand(1).isImm() && MI.getOperand(1).getImm() != 8) {
- Info = "applying IT instruction to more than one subsequent instruction is deprecated";
+ std::string &Info) {
+ if (STI.getFeatureBits() & llvm::ARM::HasV8Ops && MI.getOperand(1).isImm() &&
+ MI.getOperand(1).getImm() != 8) {
+ Info = "applying IT instruction to more than one subsequent instruction is "
+ "deprecated";
+ return true;
+ }
+
+ return false;
+}
+
+static bool getARMStoreDeprecationInfo(MCInst &MI, MCSubtargetInfo &STI,
+ std::string &Info) {
+ assert((~STI.getFeatureBits() & llvm::ARM::ModeThumb) &&
+ "cannot predicate thumb instructions");
+
+ assert(MI.getNumOperands() >= 4 && "expected >= 4 arguments");
+ for (unsigned OI = 4, OE = MI.getNumOperands(); OI < OE; ++OI) {
+ assert(MI.getOperand(OI).isReg() && "expected register");
+ if (MI.getOperand(OI).getReg() == ARM::SP ||
+ MI.getOperand(OI).getReg() == ARM::PC) {
+ Info = "use of SP or PC in the list is deprecated";
+ return true;
+ }
+ }
+ return false;
+}
+
+static bool getARMLoadDeprecationInfo(MCInst &MI, MCSubtargetInfo &STI,
+ std::string &Info) {
+ assert((~STI.getFeatureBits() & llvm::ARM::ModeThumb) &&
+ "cannot predicate thumb instructions");
+
+ assert(MI.getNumOperands() >= 4 && "expected >= 4 arguments");
+ bool ListContainsPC = false, ListContainsLR = false;
+ for (unsigned OI = 4, OE = MI.getNumOperands(); OI < OE; ++OI) {
+ assert(MI.getOperand(OI).isReg() && "expected register");
+ switch (MI.getOperand(OI).getReg()) {
+ default:
+ break;
+ case ARM::LR:
+ ListContainsLR = true;
+ break;
+ case ARM::PC:
+ ListContainsPC = true;
+ break;
+ case ARM::SP:
+ Info = "use of SP in the list is deprecated";
+ return true;
+ }
+ }
+
+ if (ListContainsPC && ListContainsLR) {
+ Info = "use of LR and PC simultaneously in the list is deprecated";
return true;
}
bool NoCPU = CPU == "generic" || CPU.empty();
std::string ARMArchFeature;
switch (triple.getSubArch()) {
+ default:
+ llvm_unreachable("invalid sub-architecture for ARM");
case Triple::ARMSubArch_v8:
if (NoCPU)
// v8a: FeatureDB, FeatureFPARMv8, FeatureNEON, FeatureDSPThumb2,
ARMArchFeature = "+v4t";
break;
case Triple::NoSubArch:
- case Triple::ARMSubArch_v4:
- ARMArchFeature = "+v4";
break;
}
Triple TheTriple(TT);
MCAsmInfo *MAI;
- switch (TheTriple.getOS()) {
- case llvm::Triple::Darwin:
- case llvm::Triple::IOS:
- case llvm::Triple::MacOSX:
+ if (TheTriple.isOSDarwin() || TheTriple.isOSBinFormatMachO())
MAI = new ARMMCAsmInfoDarwin(TT);
- break;
- case llvm::Triple::Win32:
- switch (TheTriple.getEnvironment()) {
- case llvm::Triple::Itanium:
- MAI = new ARMCOFFMCAsmInfoGNU();
- break;
- case llvm::Triple::MSVC:
- MAI = new ARMCOFFMCAsmInfoMicrosoft();
- break;
- default:
- llvm_unreachable("invalid environment");
- }
- break;
- default:
- if (TheTriple.isOSBinFormatMachO())
- MAI = new ARMMCAsmInfoDarwin(TT);
- else
- MAI = new ARMELFMCAsmInfo(TT);
- break;
- }
+ else if (TheTriple.isWindowsItaniumEnvironment())
+ MAI = new ARMCOFFMCAsmInfoGNU();
+ else if (TheTriple.isWindowsMSVCEnvironment())
+ MAI = new ARMCOFFMCAsmInfoMicrosoft();
+ else
+ MAI = new ARMELFMCAsmInfo(TT);
unsigned Reg = MRI.getDwarfRegNum(ARM::SP, true);
MAI->addInitialFrameState(MCCFIInstruction::createDefCfa(nullptr, Reg, 0));
// This is duplicated code. Refactor this.
static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
MCContext &Ctx, MCAsmBackend &MAB,
- raw_ostream &OS,
- MCCodeEmitter *Emitter,
- const MCSubtargetInfo &STI,
- bool RelaxAll,
- bool NoExecStack) {
+ raw_ostream &OS, MCCodeEmitter *Emitter,
+ const MCSubtargetInfo &STI, bool RelaxAll) {
Triple TheTriple(TT);
switch (TheTriple.getObjectFormat()) {
assert(TheTriple.isOSWindows() && "non-Windows ARM COFF is not supported");
return createARMWinCOFFStreamer(Ctx, MAB, *Emitter, OS);
case Triple::ELF:
- return createARMELFStreamer(Ctx, MAB, OS, Emitter, false, NoExecStack,
+ return createARMELFStreamer(Ctx, MAB, OS, Emitter, false,
TheTriple.getArch() == Triple::thumb);
}
}
// Register the MC codegen info.
TargetRegistry::RegisterMCCodeGenInfo(TheARMLETarget, createARMMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(TheARMBETarget, createARMMCCodeGenInfo);
- TargetRegistry::RegisterMCCodeGenInfo(TheThumbLETarget, createARMMCCodeGenInfo);
- TargetRegistry::RegisterMCCodeGenInfo(TheThumbBETarget, createARMMCCodeGenInfo);
+ TargetRegistry::RegisterMCCodeGenInfo(TheThumbLETarget,
+ createARMMCCodeGenInfo);
+ TargetRegistry::RegisterMCCodeGenInfo(TheThumbBETarget,
+ createARMMCCodeGenInfo);
// Register the MC instruction info.
TargetRegistry::RegisterMCInstrInfo(TheARMLETarget, createARMMCInstrInfo);
TargetRegistry::RegisterMCObjectStreamer(TheThumbBETarget, createMCStreamer);
// Register the asm streamer.
- TargetRegistry::RegisterAsmStreamer(TheARMLETarget, createMCAsmStreamer);
- TargetRegistry::RegisterAsmStreamer(TheARMBETarget, createMCAsmStreamer);
- TargetRegistry::RegisterAsmStreamer(TheThumbLETarget, createMCAsmStreamer);
- TargetRegistry::RegisterAsmStreamer(TheThumbBETarget, createMCAsmStreamer);
-
- // Register the null streamer.
- TargetRegistry::RegisterNullStreamer(TheARMLETarget, createARMNullStreamer);
- TargetRegistry::RegisterNullStreamer(TheARMBETarget, createARMNullStreamer);
- TargetRegistry::RegisterNullStreamer(TheThumbLETarget, createARMNullStreamer);
- TargetRegistry::RegisterNullStreamer(TheThumbBETarget, createARMNullStreamer);
+ TargetRegistry::RegisterAsmTargetStreamer(TheARMLETarget,
+ createARMTargetAsmStreamer);
+ TargetRegistry::RegisterAsmTargetStreamer(TheARMBETarget,
+ createARMTargetAsmStreamer);
+ TargetRegistry::RegisterAsmTargetStreamer(TheThumbLETarget,
+ createARMTargetAsmStreamer);
+ TargetRegistry::RegisterAsmTargetStreamer(TheThumbBETarget,
+ createARMTargetAsmStreamer);
+
+ // Register the null TargetStreamer.
+ TargetRegistry::RegisterNullTargetStreamer(TheARMLETarget,
+ createARMNullTargetStreamer);
+ TargetRegistry::RegisterNullTargetStreamer(TheARMBETarget,
+ createARMNullTargetStreamer);
+ TargetRegistry::RegisterNullTargetStreamer(TheThumbLETarget,
+ createARMNullTargetStreamer);
+ TargetRegistry::RegisterNullTargetStreamer(TheThumbBETarget,
+ createARMNullTargetStreamer);
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(TheARMLETarget, createARMMCInstPrinter);