This patch provides basic support for powerpc64le as an LLVM target.
However, use of this target will not actually generate little-endian
code. Instead, use of the target will cause the correct little-endian
built-in defines to be generated, so that code that tests for
__LITTLE_ENDIAN__, for example, will be correctly parsed for
syntax-only testing. Code generation will otherwise be the same as
powerpc64 (big-endian), for now.
The patch leaves open the possibility of creating a little-endian
PowerPC64 back end, but there is no immediate intent to create such a
thing.
The LLVM portions of this patch simply add ppc64le coverage everywhere
that ppc64 coverage currently exists. There is nothing of any import
worth testing until such time as little-endian code generation is
implemented. In the corresponding Clang patch, there is a new test
case variant to ensure that correct built-in defines for little-endian
code are generated.
llvm-svn: 187179
ppc64:Linux:*:*)
echo powerpc64-unknown-linux-gnu
exit ;;
+ ppc64le:Linux:*:*)
+ echo powerpc64le-unknown-linux-gnu
+ exit ;;
ppc:Linux:*:*)
echo powerpc-unknown-linux-gnu
exit ;;
x86_64-*linux*)
LD="${LD-ld} -m elf_i386"
;;
- ppc64-*linux*|powerpc64-*linux*)
+ ppc64-*linux*|powerpc64-*linux*|ppc64le-*linux*|powerpc64le-*linux*)
LD="${LD-ld} -m elf32ppclinux"
;;
s390x-*linux*)
msp430, // MSP430: msp430
ppc, // PPC: powerpc
ppc64, // PPC64: powerpc64, ppu
+ ppc64le, // PPC64LE: powerpc64le
r600, // R600: AMD GPUs HD2XXX - HD6XXX
sparc, // Sparc: sparc
sparcv9, // Sparcv9: Sparcv9
return (ELFT::TargetEndianness == support::little) ?
Triple::mipsel : Triple::mips;
case ELF::EM_PPC64:
- return Triple::ppc64;
+ return (ELFT::TargetEndianness == support::little) ?
+ Triple::ppc64le : Triple::ppc64;
case ELF::EM_S390:
return Triple::systemz;
default:
StubAddr++;
*StubAddr = NopInstr;
return Addr;
- } else if (Arch == Triple::ppc64) {
+ } else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le) {
// PowerPC64 stub: the address points to a function descriptor
// instead of the function itself. Load the function address
// on r11 and sets it to control register. Also loads the function
(uint32_t)(Value & 0xffffffffL), Type,
(uint32_t)(Addend & 0xffffffffL));
break;
- case Triple::ppc64:
+ case Triple::ppc64: // Fall through.
+ case Triple::ppc64le:
resolvePPC64Relocation(Section, Offset, Value, Type, Addend);
break;
case Triple::systemz:
RelType, 0);
Section.StubOffset += getMaxStubSize();
}
- } else if (Arch == Triple::ppc64) {
+ } else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le) {
if (RelType == ELF::R_PPC64_REL24) {
// A PPC branch relocation will need a stub function if the target is
// an external symbol (Symbol::ST_Unknown) or if the target address
return 8; // 32-bit instruction and 32-bit address
else if (Arch == Triple::mipsel || Arch == Triple::mips)
return 16;
- else if (Arch == Triple::ppc64)
+ else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
return 44;
else if (Arch == Triple::x86_64)
return 8; // GOT
// to using it in -static mode.
SixteenByteConstantSection = 0;
if (RelocM != Reloc::Static &&
- T.getArch() != Triple::x86_64 && T.getArch() != Triple::ppc64)
+ T.getArch() != Triple::x86_64 && T.getArch() != Triple::ppc64 &&
+ T.getArch() != Triple::ppc64le)
SixteenByteConstantSection = // .literal16
Ctx->getMachOSection("__TEXT", "__literal16",
MCSectionMachO::S_16BYTE_LITERALS,
FDEEncoding = dwarf::DW_EH_PE_udata4;
TTypeEncoding = dwarf::DW_EH_PE_absptr;
}
- } else if (T.getArch() == Triple::ppc64) {
+ } else if (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le) {
PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
dwarf::DW_EH_PE_udata8;
LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8;
case mips64el:return "mips64el";
case msp430: return "msp430";
case ppc64: return "powerpc64";
+ case ppc64le: return "powerpc64le";
case ppc: return "powerpc";
case r600: return "r600";
case sparc: return "sparc";
case thumb: return "arm";
case ppc64:
+ case ppc64le:
case ppc: return "ppc";
case mips:
.Case("ppc64", ppc64)
.Case("ppc32", ppc)
.Case("ppc", ppc)
+ .Case("ppc64le", ppc64le)
.Case("r600", r600)
.Case("hexagon", hexagon)
.Case("sparc", sparc)
.Case("x86_64", "x86_64")
.Case("powerpc", "ppc")
.Case("powerpc64", "ppc64")
+ .Case("powerpc64le", "ppc64le")
.Case("arm", "arm")
.Cases("armv4t", "thumbv4t", "armv4t")
.Cases("armv5", "armv5e", "thumbv5", "thumbv5e", "armv5")
.Cases("amd64", "x86_64", Triple::x86_64)
.Case("powerpc", Triple::ppc)
.Cases("powerpc64", "ppu", Triple::ppc64)
+ .Case("powerpc64le", Triple::ppc64le)
.Case("aarch64", Triple::aarch64)
.Cases("arm", "xscale", Triple::arm)
// FIXME: It would be good to replace these with explicit names for all the
case llvm::Triple::mips64el:
case llvm::Triple::nvptx64:
case llvm::Triple::ppc64:
+ case llvm::Triple::ppc64le:
case llvm::Triple::sparcv9:
case llvm::Triple::systemz:
case llvm::Triple::x86_64:
case Triple::aarch64:
case Triple::msp430:
case Triple::systemz:
+ case Triple::ppc64le:
T.setArch(UnknownArch);
break;
case Triple::mips64el:
case Triple::nvptx64:
case Triple::ppc64:
+ case Triple::ppc64le:
case Triple::sparcv9:
case Triple::systemz:
case Triple::x86_64:
: MCTargetAsmParser(), STI(_STI), Parser(_Parser) {
// Check for 64-bit vs. 32-bit pointer mode.
Triple TheTriple(STI.getTargetTriple());
- IsPPC64 = TheTriple.getArch() == Triple::ppc64;
+ IsPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
+ TheTriple.getArch() == Triple::ppc64le);
// Initialize the set of available features.
setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
}
extern "C" void LLVMInitializePowerPCAsmParser() {
RegisterMCAsmParser<PPCAsmParser> A(ThePPC32Target);
RegisterMCAsmParser<PPCAsmParser> B(ThePPC64Target);
+ RegisterMCAsmParser<PPCAsmParser> C(ThePPC64LETarget);
}
#define GET_REGISTER_MATCHER
unsigned getPointerSize() const {
StringRef Name = TheTarget.getName();
- if (Name == "ppc64") return 8;
+ if (Name == "ppc64" || Name == "ppc64le") return 8;
assert(Name == "ppc32" && "Unknown target name!");
return 4;
}
static MCRegisterInfo *createPPCMCRegisterInfo(StringRef TT) {
Triple TheTriple(TT);
- bool isPPC64 = (TheTriple.getArch() == Triple::ppc64);
+ bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
+ TheTriple.getArch() == Triple::ppc64le);
unsigned Flavour = isPPC64 ? 0 : 1;
unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
static MCAsmInfo *createPPCMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
Triple TheTriple(TT);
- bool isPPC64 = TheTriple.getArch() == Triple::ppc64;
+ bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
+ TheTriple.getArch() == Triple::ppc64le);
MCAsmInfo *MAI;
if (TheTriple.isOSDarwin())
}
if (CM == CodeModel::Default) {
Triple T(TT);
- if (!T.isOSDarwin() && T.getArch() == Triple::ppc64)
+ if (!T.isOSDarwin() &&
+ (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le))
CM = CodeModel::Medium;
}
X->InitMCCodeGenInfo(RM, CM, OL);
// Register the MC asm info.
RegisterMCAsmInfoFn C(ThePPC32Target, createPPCMCAsmInfo);
RegisterMCAsmInfoFn D(ThePPC64Target, createPPCMCAsmInfo);
+ RegisterMCAsmInfoFn E(ThePPC64LETarget, createPPCMCAsmInfo);
// Register the MC codegen info.
TargetRegistry::RegisterMCCodeGenInfo(ThePPC32Target, createPPCMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(ThePPC64Target, createPPCMCCodeGenInfo);
+ TargetRegistry::RegisterMCCodeGenInfo(ThePPC64LETarget,
+ createPPCMCCodeGenInfo);
// Register the MC instruction info.
TargetRegistry::RegisterMCInstrInfo(ThePPC32Target, createPPCMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(ThePPC64Target, createPPCMCInstrInfo);
+ TargetRegistry::RegisterMCInstrInfo(ThePPC64LETarget,
+ createPPCMCInstrInfo);
// Register the MC register info.
TargetRegistry::RegisterMCRegInfo(ThePPC32Target, createPPCMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(ThePPC64Target, createPPCMCRegisterInfo);
+ TargetRegistry::RegisterMCRegInfo(ThePPC64LETarget, createPPCMCRegisterInfo);
// Register the MC subtarget info.
TargetRegistry::RegisterMCSubtargetInfo(ThePPC32Target,
createPPCMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(ThePPC64Target,
createPPCMCSubtargetInfo);
+ TargetRegistry::RegisterMCSubtargetInfo(ThePPC64LETarget,
+ createPPCMCSubtargetInfo);
// Register the MC Code Emitter
TargetRegistry::RegisterMCCodeEmitter(ThePPC32Target, createPPCMCCodeEmitter);
TargetRegistry::RegisterMCCodeEmitter(ThePPC64Target, createPPCMCCodeEmitter);
+ TargetRegistry::RegisterMCCodeEmitter(ThePPC64LETarget,
+ createPPCMCCodeEmitter);
// Register the asm backend.
TargetRegistry::RegisterMCAsmBackend(ThePPC32Target, createPPCAsmBackend);
TargetRegistry::RegisterMCAsmBackend(ThePPC64Target, createPPCAsmBackend);
+ TargetRegistry::RegisterMCAsmBackend(ThePPC64LETarget, createPPCAsmBackend);
// Register the object streamer.
TargetRegistry::RegisterMCObjectStreamer(ThePPC32Target, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(ThePPC64Target, createMCStreamer);
+ TargetRegistry::RegisterMCObjectStreamer(ThePPC64LETarget, createMCStreamer);
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(ThePPC32Target, createPPCMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(ThePPC64Target, createPPCMCInstPrinter);
+ TargetRegistry::RegisterMCInstPrinter(ThePPC64LETarget,
+ createPPCMCInstPrinter);
}
extern Target ThePPC32Target;
extern Target ThePPC64Target;
+extern Target ThePPC64LETarget;
MCCodeEmitter *createPPCMCCodeEmitter(const MCInstrInfo &MCII,
const MCRegisterInfo &MRI,
FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
FeatureFRSQRTE, FeatureSTFIWX,
Feature64Bit /*, Feature64BitRegs */]>;
+def : ProcessorModel<"ppc64le", G5Model,
+ [Directive64, FeatureAltivec,
+ FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
+ FeatureFRSQRTE, FeatureSTFIWX,
+ Feature64Bit /*, Feature64BitRegs */]>;
//===----------------------------------------------------------------------===//
// Calling Conventions
"power6",
"power6x",
"power7",
- "ppc64"
+ "ppc64",
+ "ppc64le"
};
unsigned Directive = Subtarget.getDarwinDirective();
// is enabled because external functions will assume this alignment.
if (hasQPX() || isBGQ())
StackAlignment = 32;
+
+ // Determine endianness.
+ IsLittleEndian = (TargetTriple.getArch() == Triple::ppc64le);
}
/// hasLazyResolverStub - Return true if accesses to the specified global have
bool IsBookE;
bool HasLazyResolverStubs;
bool IsJITCodeModel;
+ bool IsLittleEndian;
/// TargetTriple - What processor and OS we're targeting.
Triple TargetTriple;
// isJITCodeModel - True if we're generating code for the JIT
bool isJITCodeModel() const { return IsJITCodeModel; }
+ // isLittleEndian - True if generating little-endian code
+ bool isLittleEndian() const { return IsLittleEndian; }
+
// Specific obvious features.
bool hasFSQRT() const { return HasFSQRT; }
bool hasFRE() const { return HasFRE; }
// Register the targets
RegisterTargetMachine<PPC32TargetMachine> A(ThePPC32Target);
RegisterTargetMachine<PPC64TargetMachine> B(ThePPC64Target);
+ RegisterTargetMachine<PPC64TargetMachine> C(ThePPC64LETarget);
}
PPCTargetMachine::PPCTargetMachine(const Target &T, StringRef TT,
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
-Target llvm::ThePPC32Target, llvm::ThePPC64Target;
+Target llvm::ThePPC32Target, llvm::ThePPC64Target, llvm::ThePPC64LETarget;
extern "C" void LLVMInitializePowerPCTargetInfo() {
RegisterTarget<Triple::ppc, /*HasJIT=*/true>
RegisterTarget<Triple::ppc64, /*HasJIT=*/true>
Y(ThePPC64Target, "ppc64", "PowerPC 64");
+
+ RegisterTarget<Triple::ppc64le, /*HasJIT=*/true>
+ Z(ThePPC64LETarget, "ppc64le", "PowerPC 64 LE");
}
llvm::Triple TargetTriple(M.getTargetTriple());
bool IsAndroid = TargetTriple.getEnvironment() == llvm::Triple::Android;
bool IsMacOSX = TargetTriple.getOS() == llvm::Triple::MacOSX;
- bool IsPPC64 = TargetTriple.getArch() == llvm::Triple::ppc64;
+ bool IsPPC64 = TargetTriple.getArch() == llvm::Triple::ppc64 ||
+ TargetTriple.getArch() == llvm::Triple::ppc64le;
bool IsX86_64 = TargetTriple.getArch() == llvm::Triple::x86_64;
bool IsMIPS32 = TargetTriple.getArch() == llvm::Triple::mips ||
TargetTriple.getArch() == llvm::Triple::mipsel;
ppc64:Linux:*:*)
echo powerpc64-unknown-linux-gnu
exit ;;
+ ppc64le:Linux:*:*)
+ echo powerpc64le-unknown-linux-gnu
+ exit ;;
ppc:Linux:*:*)
echo powerpc-unknown-linux-gnu
exit ;;
x86_64-*linux*)
LD="${LD-ld} -m elf_i386"
;;
- ppc64-*linux*|powerpc64-*linux*)
+ ppc64-*linux*|powerpc64-*linux*|ppc64le-$linux*|powerpc64le-*linux*)
LD="${LD-ld} -m elf32ppclinux"
;;
s390x-*linux*)