diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.cpp | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.cpp b/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.cpp new file mode 100644 index 0000000..9113e4a --- /dev/null +++ b/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.cpp @@ -0,0 +1,184 @@ +//===-- SparcMCTargetDesc.cpp - Sparc Target Descriptions -----------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file provides Sparc specific target descriptions. +// +//===----------------------------------------------------------------------===// + +#include "SparcMCTargetDesc.h" +#include "InstPrinter/SparcInstPrinter.h" +#include "SparcMCAsmInfo.h" +#include "SparcTargetStreamer.h" +#include "llvm/MC/MCCodeGenInfo.h" +#include "llvm/MC/MCInstrInfo.h" +#include "llvm/MC/MCRegisterInfo.h" +#include "llvm/MC/MCSubtargetInfo.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/TargetRegistry.h" + +using namespace llvm; + +#define GET_INSTRINFO_MC_DESC +#include "SparcGenInstrInfo.inc" + +#define GET_SUBTARGETINFO_MC_DESC +#include "SparcGenSubtargetInfo.inc" + +#define GET_REGINFO_MC_DESC +#include "SparcGenRegisterInfo.inc" + +static MCAsmInfo *createSparcMCAsmInfo(const MCRegisterInfo &MRI, + const Triple &TT) { + MCAsmInfo *MAI = new SparcELFMCAsmInfo(TT); + unsigned Reg = MRI.getDwarfRegNum(SP::O6, true); + MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, Reg, 0); + MAI->addInitialFrameState(Inst); + return MAI; +} + +static MCAsmInfo *createSparcV9MCAsmInfo(const MCRegisterInfo &MRI, + const Triple &TT) { + MCAsmInfo *MAI = new SparcELFMCAsmInfo(TT); + unsigned Reg = MRI.getDwarfRegNum(SP::O6, true); + MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, Reg, 2047); + MAI->addInitialFrameState(Inst); + return MAI; +} + +static MCInstrInfo *createSparcMCInstrInfo() { + MCInstrInfo *X = new MCInstrInfo(); + InitSparcMCInstrInfo(X); + return X; +} + +static MCRegisterInfo *createSparcMCRegisterInfo(const Triple &TT) { + MCRegisterInfo *X = new MCRegisterInfo(); + InitSparcMCRegisterInfo(X, SP::O7); + return X; +} + +static MCSubtargetInfo * +createSparcMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) { + if (CPU.empty()) + CPU = (TT.getArch() == Triple::sparcv9) ? "v9" : "v8"; + return createSparcMCSubtargetInfoImpl(TT, CPU, FS); +} + +// Code models. Some only make sense for 64-bit code. +// +// SunCC Reloc CodeModel Constraints +// abs32 Static Small text+data+bss linked below 2^32 bytes +// abs44 Static Medium text+data+bss linked below 2^44 bytes +// abs64 Static Large text smaller than 2^31 bytes +// pic13 PIC_ Small GOT < 2^13 bytes +// pic32 PIC_ Medium GOT < 2^32 bytes +// +// All code models require that the text segment is smaller than 2GB. + +static MCCodeGenInfo *createSparcMCCodeGenInfo(const Triple &TT, + Reloc::Model RM, + CodeModel::Model CM, + CodeGenOpt::Level OL) { + MCCodeGenInfo *X = new MCCodeGenInfo(); + + // The default 32-bit code model is abs32/pic32 and the default 32-bit + // code model for JIT is abs32. + switch (CM) { + default: break; + case CodeModel::Default: + case CodeModel::JITDefault: CM = CodeModel::Small; break; + } + + X->initMCCodeGenInfo(RM, CM, OL); + return X; +} + +static MCCodeGenInfo *createSparcV9MCCodeGenInfo(const Triple &TT, + Reloc::Model RM, + CodeModel::Model CM, + CodeGenOpt::Level OL) { + MCCodeGenInfo *X = new MCCodeGenInfo(); + + // The default 64-bit code model is abs44/pic32 and the default 64-bit + // code model for JIT is abs64. + switch (CM) { + default: break; + case CodeModel::Default: + CM = RM == Reloc::PIC_ ? CodeModel::Small : CodeModel::Medium; + break; + case CodeModel::JITDefault: + CM = CodeModel::Large; + break; + } + + X->initMCCodeGenInfo(RM, CM, OL); + return X; +} + +static MCTargetStreamer * +createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) { + return new SparcTargetELFStreamer(S); +} + +static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S, + formatted_raw_ostream &OS, + MCInstPrinter *InstPrint, + bool isVerboseAsm) { + return new SparcTargetAsmStreamer(S, OS); +} + +static MCInstPrinter *createSparcMCInstPrinter(const Triple &T, + unsigned SyntaxVariant, + const MCAsmInfo &MAI, + const MCInstrInfo &MII, + const MCRegisterInfo &MRI) { + return new SparcInstPrinter(MAI, MII, MRI); +} + +extern "C" void LLVMInitializeSparcTargetMC() { + // Register the MC asm info. + RegisterMCAsmInfoFn X(TheSparcTarget, createSparcMCAsmInfo); + RegisterMCAsmInfoFn Y(TheSparcV9Target, createSparcV9MCAsmInfo); + RegisterMCAsmInfoFn Z(TheSparcelTarget, createSparcMCAsmInfo); + + for (Target *T : {&TheSparcTarget, &TheSparcV9Target, &TheSparcelTarget}) { + // Register the MC instruction info. + TargetRegistry::RegisterMCInstrInfo(*T, createSparcMCInstrInfo); + + // Register the MC register info. + TargetRegistry::RegisterMCRegInfo(*T, createSparcMCRegisterInfo); + + // Register the MC subtarget info. + TargetRegistry::RegisterMCSubtargetInfo(*T, createSparcMCSubtargetInfo); + + // Register the MC Code Emitter. + TargetRegistry::RegisterMCCodeEmitter(*T, createSparcMCCodeEmitter); + + // Register the asm backend. + TargetRegistry::RegisterMCAsmBackend(*T, createSparcAsmBackend); + + // Register the object target streamer. + TargetRegistry::RegisterObjectTargetStreamer(*T, + createObjectTargetStreamer); + + // Register the asm streamer. + TargetRegistry::RegisterAsmTargetStreamer(*T, createTargetAsmStreamer); + + // Register the MCInstPrinter + TargetRegistry::RegisterMCInstPrinter(*T, createSparcMCInstPrinter); + } + + // Register the MC codegen info. + TargetRegistry::RegisterMCCodeGenInfo(TheSparcTarget, + createSparcMCCodeGenInfo); + TargetRegistry::RegisterMCCodeGenInfo(TheSparcV9Target, + createSparcV9MCCodeGenInfo); + TargetRegistry::RegisterMCCodeGenInfo(TheSparcelTarget, + createSparcMCCodeGenInfo); +} |
