From f54249b55ffbeeab62fe006379e209853a90fce2 Mon Sep 17 00:00:00 2001 From: Michael Liao Date: Thu, 4 Oct 2012 19:50:43 +0000 Subject: [PATCH] Add register encoding support in X86 backend - Add 'HwEncoding' for X86 registers and call getEncodingValue() to retrieve their encoding values. - This's the first step to adopt new scheme. Furthur revising is onging. llvm-svn: 165241 --- .../Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp | 9 +- .../Target/X86/MCTargetDesc/X86MCTargetDesc.cpp | 114 +---- llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h | 2 - llvm/lib/Target/X86/X86CodeEmitter.cpp | 40 +- llvm/lib/Target/X86/X86ISelLowering.cpp | 7 +- llvm/lib/Target/X86/X86RegisterInfo.cpp | 18 +- llvm/lib/Target/X86/X86RegisterInfo.h | 4 - llvm/lib/Target/X86/X86RegisterInfo.td | 496 +++++++++++---------- 8 files changed, 287 insertions(+), 403 deletions(-) diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp index 6b0ec4f..f6ebdac 100644 --- a/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp +++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp @@ -16,6 +16,7 @@ #include "MCTargetDesc/X86BaseInfo.h" #include "MCTargetDesc/X86FixupKinds.h" #include "llvm/MC/MCCodeEmitter.h" +#include "llvm/MC/MCContext.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstrInfo.h" @@ -51,8 +52,8 @@ public: return (STI.getFeatureBits() & X86::Mode64Bit) == 0; } - static unsigned GetX86RegNum(const MCOperand &MO) { - return X86_MC::getX86RegNum(MO.getReg()); + unsigned GetX86RegNum(const MCOperand &MO) const { + return Ctx.getRegisterInfo().getEncodingValue(MO.getReg()) & 0x7; } // On regular x86, both XMM0-XMM7 and XMM8-XMM15 are encoded in the range @@ -64,8 +65,8 @@ public: // VEX.VVVV => XMM9 => ~9 // // See table 4-35 of Intel AVX Programming Reference for details. - static unsigned char getVEXRegisterEncoding(const MCInst &MI, - unsigned OpNum) { + unsigned char getVEXRegisterEncoding(const MCInst &MI, + unsigned OpNum) const { unsigned SrcReg = MI.getOperand(OpNum).getReg(); unsigned SrcRegNum = GetX86RegNum(MI.getOperand(OpNum)); if (X86II::isX86_64ExtendedReg(SrcReg)) diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp index c48f770..287c9f1 100644 --- a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp +++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp @@ -209,122 +209,10 @@ unsigned X86_MC::getDwarfRegFlavour(StringRef TT, bool isEH) { return DWARFFlavour::X86_32_Generic; } -/// getX86RegNum - This function maps LLVM register identifiers to their X86 -/// specific numbering, which is used in various places encoding instructions. -unsigned X86_MC::getX86RegNum(unsigned RegNo) { - switch(RegNo) { - case X86::RAX: case X86::EAX: case X86::AX: case X86::AL: return N86::EAX; - case X86::RCX: case X86::ECX: case X86::CX: case X86::CL: return N86::ECX; - case X86::RDX: case X86::EDX: case X86::DX: case X86::DL: return N86::EDX; - case X86::RBX: case X86::EBX: case X86::BX: case X86::BL: return N86::EBX; - case X86::RSP: case X86::ESP: case X86::SP: case X86::SPL: case X86::AH: - return N86::ESP; - case X86::RBP: case X86::EBP: case X86::BP: case X86::BPL: case X86::CH: - return N86::EBP; - case X86::RSI: case X86::ESI: case X86::SI: case X86::SIL: case X86::DH: - return N86::ESI; - case X86::RDI: case X86::EDI: case X86::DI: case X86::DIL: case X86::BH: - return N86::EDI; - - case X86::R8: case X86::R8D: case X86::R8W: case X86::R8B: - return N86::EAX; - case X86::R9: case X86::R9D: case X86::R9W: case X86::R9B: - return N86::ECX; - case X86::R10: case X86::R10D: case X86::R10W: case X86::R10B: - return N86::EDX; - case X86::R11: case X86::R11D: case X86::R11W: case X86::R11B: - return N86::EBX; - case X86::R12: case X86::R12D: case X86::R12W: case X86::R12B: - return N86::ESP; - case X86::R13: case X86::R13D: case X86::R13W: case X86::R13B: - return N86::EBP; - case X86::R14: case X86::R14D: case X86::R14W: case X86::R14B: - return N86::ESI; - case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B: - return N86::EDI; - - case X86::ST0: return 0; - case X86::ST1: return 1; - case X86::ST2: return 2; - case X86::ST3: return 3; - case X86::ST4: return 4; - case X86::ST5: return 5; - case X86::ST6: return 6; - case X86::ST7: return 7; - - case X86::XMM0: case X86::XMM8: - case X86::YMM0: case X86::YMM8: case X86::MM0: - return 0; - case X86::XMM1: case X86::XMM9: - case X86::YMM1: case X86::YMM9: case X86::MM1: - return 1; - case X86::XMM2: case X86::XMM10: - case X86::YMM2: case X86::YMM10: case X86::MM2: - return 2; - case X86::XMM3: case X86::XMM11: - case X86::YMM3: case X86::YMM11: case X86::MM3: - return 3; - case X86::XMM4: case X86::XMM12: - case X86::YMM4: case X86::YMM12: case X86::MM4: - return 4; - case X86::XMM5: case X86::XMM13: - case X86::YMM5: case X86::YMM13: case X86::MM5: - return 5; - case X86::XMM6: case X86::XMM14: - case X86::YMM6: case X86::YMM14: case X86::MM6: - return 6; - case X86::XMM7: case X86::XMM15: - case X86::YMM7: case X86::YMM15: case X86::MM7: - return 7; - - case X86::ES: return 0; - case X86::CS: return 1; - case X86::SS: return 2; - case X86::DS: return 3; - case X86::FS: return 4; - case X86::GS: return 5; - - case X86::CR0: case X86::CR8 : case X86::DR0: return 0; - case X86::CR1: case X86::CR9 : case X86::DR1: return 1; - case X86::CR2: case X86::CR10: case X86::DR2: return 2; - case X86::CR3: case X86::CR11: case X86::DR3: return 3; - case X86::CR4: case X86::CR12: case X86::DR4: return 4; - case X86::CR5: case X86::CR13: case X86::DR5: return 5; - case X86::CR6: case X86::CR14: case X86::DR6: return 6; - case X86::CR7: case X86::CR15: case X86::DR7: return 7; - - // Pseudo index registers are equivalent to a "none" - // scaled index (See Intel Manual 2A, table 2-3) - case X86::EIZ: - case X86::RIZ: - return 4; - - default: - assert((int(RegNo) > 0) && "Unknown physical register!"); - return 0; - } -} - void X86_MC::InitLLVM2SEHRegisterMapping(MCRegisterInfo *MRI) { // FIXME: TableGen these. for (unsigned Reg = X86::NoRegister+1; Reg < X86::NUM_TARGET_REGS; ++Reg) { - int SEH = X86_MC::getX86RegNum(Reg); - switch (Reg) { - case X86::R8: case X86::R8D: case X86::R8W: case X86::R8B: - case X86::R9: case X86::R9D: case X86::R9W: case X86::R9B: - case X86::R10: case X86::R10D: case X86::R10W: case X86::R10B: - case X86::R11: case X86::R11D: case X86::R11W: case X86::R11B: - case X86::R12: case X86::R12D: case X86::R12W: case X86::R12B: - case X86::R13: case X86::R13D: case X86::R13W: case X86::R13B: - case X86::R14: case X86::R14D: case X86::R14W: case X86::R14B: - case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B: - case X86::XMM8: case X86::XMM9: case X86::XMM10: case X86::XMM11: - case X86::XMM12: case X86::XMM13: case X86::XMM14: case X86::XMM15: - case X86::YMM8: case X86::YMM9: case X86::YMM10: case X86::YMM11: - case X86::YMM12: case X86::YMM13: case X86::YMM14: case X86::YMM15: - SEH += 8; - break; - } + unsigned SEH = MRI->getEncodingValue(Reg); MRI->mapLLVMRegToSEHReg(Reg, SEH); } } diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h index 4b0cace..0b0989b 100644 --- a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h +++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h @@ -64,8 +64,6 @@ namespace X86_MC { unsigned getDwarfRegFlavour(StringRef TT, bool isEH); - unsigned getX86RegNum(unsigned RegNo); - void InitLLVM2SEHRegisterMapping(MCRegisterInfo *MRI); /// createX86MCSubtargetInfo - Create a X86 MCSubtargetInfo instance. diff --git a/llvm/lib/Target/X86/X86CodeEmitter.cpp b/llvm/lib/Target/X86/X86CodeEmitter.cpp index 83dbe3e..bc2e1bb 100644 --- a/llvm/lib/Target/X86/X86CodeEmitter.cpp +++ b/llvm/lib/Target/X86/X86CodeEmitter.cpp @@ -109,6 +109,14 @@ namespace { void emitMemModRMByte(const MachineInstr &MI, unsigned Op, unsigned RegOpcodeField, intptr_t PCAdj = 0); + + unsigned getX86RegNum(unsigned RegNo) const { + const TargetRegisterInfo *TRI = TM.getRegisterInfo(); + return TRI->getEncodingValue(RegNo) & 0x7; + } + + unsigned char getVEXRegisterEncoding(const MachineInstr &MI, + unsigned OpNum) const; }; template @@ -363,7 +371,7 @@ inline static unsigned char ModRMByte(unsigned Mod, unsigned RegOpcode, template void Emitter::emitRegModRMByte(unsigned ModRMReg, unsigned RegOpcodeFld){ - MCE.emitByte(ModRMByte(3, RegOpcodeFld, X86_MC::getX86RegNum(ModRMReg))); + MCE.emitByte(ModRMByte(3, RegOpcodeFld, getX86RegNum(ModRMReg))); } template @@ -501,7 +509,7 @@ void Emitter::emitMemModRMByte(const MachineInstr &MI, // 2-7) and absolute references. unsigned BaseRegNo = -1U; if (BaseReg != 0 && BaseReg != X86::RIP) - BaseRegNo = X86_MC::getX86RegNum(BaseReg); + BaseRegNo = getX86RegNum(BaseReg); if (// The SIB byte must be used if there is an index register. IndexReg.getReg() == 0 && @@ -577,15 +585,15 @@ void Emitter::emitMemModRMByte(const MachineInstr &MI, // Manual 2A, table 2-7. The displacement has already been output. unsigned IndexRegNo; if (IndexReg.getReg()) - IndexRegNo = X86_MC::getX86RegNum(IndexReg.getReg()); + IndexRegNo = getX86RegNum(IndexReg.getReg()); else // Examples: [ESP+1*+4] or [scaled idx]+disp32 (MOD=0,BASE=5) IndexRegNo = 4; emitSIBByte(SS, IndexRegNo, 5); } else { - unsigned BaseRegNo = X86_MC::getX86RegNum(BaseReg); + unsigned BaseRegNo = getX86RegNum(BaseReg); unsigned IndexRegNo; if (IndexReg.getReg()) - IndexRegNo = X86_MC::getX86RegNum(IndexReg.getReg()); + IndexRegNo = getX86RegNum(IndexReg.getReg()); else IndexRegNo = 4; // For example [ESP+1*+4] emitSIBByte(SS, IndexRegNo, BaseRegNo); @@ -756,10 +764,12 @@ void Emitter::emitOpcodePrefix(uint64_t TSFlags, // VEX.VVVV => XMM9 => ~9 // // See table 4-35 of Intel AVX Programming Reference for details. -static unsigned char getVEXRegisterEncoding(const MachineInstr &MI, - unsigned OpNum) { +template +unsigned char +Emitter::getVEXRegisterEncoding(const MachineInstr &MI, + unsigned OpNum) const { unsigned SrcReg = MI.getOperand(OpNum).getReg(); - unsigned SrcRegNum = X86_MC::getX86RegNum(MI.getOperand(OpNum).getReg()); + unsigned SrcRegNum = getX86RegNum(MI.getOperand(OpNum).getReg()); if (X86II::isX86_64ExtendedReg(SrcReg)) SrcRegNum |= 8; @@ -1235,7 +1245,7 @@ void Emitter::emitInstruction(MachineInstr &MI, case X86II::AddRegFrm: { MCE.emitByte(BaseOpcode + - X86_MC::getX86RegNum(MI.getOperand(CurOp++).getReg())); + getX86RegNum(MI.getOperand(CurOp++).getReg())); if (CurOp == NumOps) break; @@ -1270,7 +1280,7 @@ void Emitter::emitInstruction(MachineInstr &MI, case X86II::MRMDestReg: { MCE.emitByte(BaseOpcode); emitRegModRMByte(MI.getOperand(CurOp).getReg(), - X86_MC::getX86RegNum(MI.getOperand(CurOp+1).getReg())); + getX86RegNum(MI.getOperand(CurOp+1).getReg())); CurOp += 2; break; } @@ -1281,7 +1291,7 @@ void Emitter::emitInstruction(MachineInstr &MI, if (HasVEX_4V) // Skip 1st src (which is encoded in VEX_VVVV) SrcRegNum++; emitMemModRMByte(MI, CurOp, - X86_MC::getX86RegNum(MI.getOperand(SrcRegNum).getReg())); + getX86RegNum(MI.getOperand(SrcRegNum).getReg())); CurOp = SrcRegNum + 1; break; } @@ -1297,7 +1307,7 @@ void Emitter::emitInstruction(MachineInstr &MI, ++SrcRegNum; emitRegModRMByte(MI.getOperand(SrcRegNum).getReg(), - X86_MC::getX86RegNum(MI.getOperand(CurOp).getReg())); + getX86RegNum(MI.getOperand(CurOp).getReg())); // 2 operands skipped with HasMemOp4, compensate accordingly CurOp = HasMemOp4 ? SrcRegNum : SrcRegNum + 1; if (HasVEX_4VOp3) @@ -1319,7 +1329,7 @@ void Emitter::emitInstruction(MachineInstr &MI, intptr_t PCAdj = (CurOp + AddrOperands + 1 != NumOps) ? X86II::getSizeOfImm(Desc->TSFlags) : 0; emitMemModRMByte(MI, FirstMemOp, - X86_MC::getX86RegNum(MI.getOperand(CurOp).getReg()),PCAdj); + getX86RegNum(MI.getOperand(CurOp).getReg()),PCAdj); CurOp += AddrOperands + 1; if (HasVEX_4VOp3) ++CurOp; @@ -1409,7 +1419,7 @@ void Emitter::emitInstruction(MachineInstr &MI, MCE.emitByte(BaseOpcode); // Duplicate register, used by things like MOV8r0 (aka xor reg,reg). emitRegModRMByte(MI.getOperand(CurOp).getReg(), - X86_MC::getX86RegNum(MI.getOperand(CurOp).getReg())); + getX86RegNum(MI.getOperand(CurOp).getReg())); ++CurOp; break; @@ -1442,7 +1452,7 @@ void Emitter::emitInstruction(MachineInstr &MI, const MachineOperand &MO = MI.getOperand(HasMemOp4 ? MemOp4_I8IMMOperand : CurOp); ++CurOp; - unsigned RegNum = X86_MC::getX86RegNum(MO.getReg()) << 4; + unsigned RegNum = getX86RegNum(MO.getReg()) << 4; if (X86II::isX86_64ExtendedReg(MO.getReg())) RegNum |= 1 << 7; // If there is an additional 5th operand it must be an immediate, which diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 4e4688f..5fa480b 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -10412,6 +10412,7 @@ SDValue X86TargetLowering::LowerINIT_TRAMPOLINE(SDValue Op, DebugLoc dl = Op.getDebugLoc(); const Value *TrmpAddr = cast(Op.getOperand(4))->getValue(); + const TargetRegisterInfo* TRI = getTargetMachine().getRegisterInfo(); if (Subtarget->is64Bit()) { SDValue OutChains[6]; @@ -10420,8 +10421,8 @@ SDValue X86TargetLowering::LowerINIT_TRAMPOLINE(SDValue Op, const unsigned char JMP64r = 0xFF; // 64-bit jmp through register opcode. const unsigned char MOV64ri = 0xB8; // X86::MOV64ri opcode. - const unsigned char N86R10 = X86_MC::getX86RegNum(X86::R10); - const unsigned char N86R11 = X86_MC::getX86RegNum(X86::R11); + const unsigned char N86R10 = TRI->getEncodingValue(X86::R10) & 0x7; + const unsigned char N86R11 = TRI->getEncodingValue(X86::R11) & 0x7; const unsigned char REX_WB = 0x40 | 0x08 | 0x01; // REX prefix @@ -10523,7 +10524,7 @@ SDValue X86TargetLowering::LowerINIT_TRAMPOLINE(SDValue Op, // This is storing the opcode for MOV32ri. const unsigned char MOV32ri = 0xB8; // X86::MOV32ri's opcode byte. - const unsigned char N86Reg = X86_MC::getX86RegNum(NestReg); + const unsigned char N86Reg = TRI->getEncodingValue(NestReg) & 0x7; OutChains[0] = DAG.getStore(Root, dl, DAG.getConstant(MOV32ri|N86Reg, MVT::i8), Trmp, MachinePointerInfo(TrmpAddr), diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp index 6f18be3..7f8c250 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.cpp +++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp @@ -106,23 +106,7 @@ X86RegisterInfo::trackLivenessAfterRegAlloc(const MachineFunction &MF) const { int X86RegisterInfo::getSEHRegNum(unsigned i) const { - int reg = X86_MC::getX86RegNum(i); - switch (i) { - case X86::R8: case X86::R8D: case X86::R8W: case X86::R8B: - case X86::R9: case X86::R9D: case X86::R9W: case X86::R9B: - case X86::R10: case X86::R10D: case X86::R10W: case X86::R10B: - case X86::R11: case X86::R11D: case X86::R11W: case X86::R11B: - case X86::R12: case X86::R12D: case X86::R12W: case X86::R12B: - case X86::R13: case X86::R13D: case X86::R13W: case X86::R13B: - case X86::R14: case X86::R14D: case X86::R14W: case X86::R14B: - case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B: - case X86::XMM8: case X86::XMM9: case X86::XMM10: case X86::XMM11: - case X86::XMM12: case X86::XMM13: case X86::XMM14: case X86::XMM15: - case X86::YMM8: case X86::YMM9: case X86::YMM10: case X86::YMM11: - case X86::YMM12: case X86::YMM13: case X86::YMM14: case X86::YMM15: - reg += 8; - } - return reg; + return getEncodingValue(i); } const TargetRegisterClass * diff --git a/llvm/lib/Target/X86/X86RegisterInfo.h b/llvm/lib/Target/X86/X86RegisterInfo.h index 8e07030..0287fa2 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.h +++ b/llvm/lib/Target/X86/X86RegisterInfo.h @@ -58,10 +58,6 @@ private: public: X86RegisterInfo(X86TargetMachine &tm, const TargetInstrInfo &tii); - /// getX86RegNum - Returns the native X86 register number for the given LLVM - /// register identifier. - static unsigned getX86RegNum(unsigned RegNo); - // FIXME: This should be tablegen'd like getDwarfRegNum is int getSEHRegNum(unsigned i) const; diff --git a/llvm/lib/Target/X86/X86RegisterInfo.td b/llvm/lib/Target/X86/X86RegisterInfo.td index edc7184..be6282a 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.td +++ b/llvm/lib/Target/X86/X86RegisterInfo.td @@ -13,258 +13,264 @@ // //===----------------------------------------------------------------------===// -//===----------------------------------------------------------------------===// -// Register definitions... -// -let Namespace = "X86" in { +class X86Reg Enc, list subregs = []> : Register { + let Namespace = "X86"; + let HWEncoding = Enc; + let SubRegs = subregs; +} - // Subregister indices. +// Subregister indices. +let Namespace = "X86" in { def sub_8bit : SubRegIndex; def sub_8bit_hi : SubRegIndex; def sub_16bit : SubRegIndex; def sub_32bit : SubRegIndex; - def sub_xmm : SubRegIndex; - - - // In the register alias definitions below, we define which registers alias - // which others. We only specify which registers the small registers alias, - // because the register file generator is smart enough to figure out that - // AL aliases AX if we tell it that AX aliased AL (for example). - - // Dwarf numbering is different for 32-bit and 64-bit, and there are - // variations by target as well. Currently the first entry is for X86-64, - // second - for EH on X86-32/Darwin and third is 'generic' one (X86-32/Linux - // and debug information on X86-32/Darwin) - - // 8-bit registers - // Low registers - def AL : Register<"al">; - def DL : Register<"dl">; - def CL : Register<"cl">; - def BL : Register<"bl">; - - // X86-64 only, requires REX. - let CostPerUse = 1 in { - def SIL : Register<"sil">; - def DIL : Register<"dil">; - def BPL : Register<"bpl">; - def SPL : Register<"spl">; - def R8B : Register<"r8b">; - def R9B : Register<"r9b">; - def R10B : Register<"r10b">; - def R11B : Register<"r11b">; - def R12B : Register<"r12b">; - def R13B : Register<"r13b">; - def R14B : Register<"r14b">; - def R15B : Register<"r15b">; - } - - // High registers. On x86-64, these cannot be used in any instruction - // with a REX prefix. - def AH : Register<"ah">; - def DH : Register<"dh">; - def CH : Register<"ch">; - def BH : Register<"bh">; - - // 16-bit registers - let SubRegIndices = [sub_8bit, sub_8bit_hi], CoveredBySubRegs = 1 in { - def AX : RegisterWithSubRegs<"ax", [AL,AH]>; - def DX : RegisterWithSubRegs<"dx", [DL,DH]>; - def CX : RegisterWithSubRegs<"cx", [CL,CH]>; - def BX : RegisterWithSubRegs<"bx", [BL,BH]>; - } - let SubRegIndices = [sub_8bit] in { - def SI : RegisterWithSubRegs<"si", [SIL]>; - def DI : RegisterWithSubRegs<"di", [DIL]>; - def BP : RegisterWithSubRegs<"bp", [BPL]>; - def SP : RegisterWithSubRegs<"sp", [SPL]>; - } - def IP : Register<"ip">; - - // X86-64 only, requires REX. - let SubRegIndices = [sub_8bit], CostPerUse = 1 in { - def R8W : RegisterWithSubRegs<"r8w", [R8B]>; - def R9W : RegisterWithSubRegs<"r9w", [R9B]>; - def R10W : RegisterWithSubRegs<"r10w", [R10B]>; - def R11W : RegisterWithSubRegs<"r11w", [R11B]>; - def R12W : RegisterWithSubRegs<"r12w", [R12B]>; - def R13W : RegisterWithSubRegs<"r13w", [R13B]>; - def R14W : RegisterWithSubRegs<"r14w", [R14B]>; - def R15W : RegisterWithSubRegs<"r15w", [R15B]>; - } - // 32-bit registers - let SubRegIndices = [sub_16bit] in { - def EAX : RegisterWithSubRegs<"eax", [AX]>, DwarfRegNum<[-2, 0, 0]>; - def EDX : RegisterWithSubRegs<"edx", [DX]>, DwarfRegNum<[-2, 2, 2]>; - def ECX : RegisterWithSubRegs<"ecx", [CX]>, DwarfRegNum<[-2, 1, 1]>; - def EBX : RegisterWithSubRegs<"ebx", [BX]>, DwarfRegNum<[-2, 3, 3]>; - def ESI : RegisterWithSubRegs<"esi", [SI]>, DwarfRegNum<[-2, 6, 6]>; - def EDI : RegisterWithSubRegs<"edi", [DI]>, DwarfRegNum<[-2, 7, 7]>; - def EBP : RegisterWithSubRegs<"ebp", [BP]>, DwarfRegNum<[-2, 4, 5]>; - def ESP : RegisterWithSubRegs<"esp", [SP]>, DwarfRegNum<[-2, 5, 4]>; - def EIP : RegisterWithSubRegs<"eip", [IP]>, DwarfRegNum<[-2, 8, 8]>; - - // X86-64 only, requires REX - let CostPerUse = 1 in { - def R8D : RegisterWithSubRegs<"r8d", [R8W]>; - def R9D : RegisterWithSubRegs<"r9d", [R9W]>; - def R10D : RegisterWithSubRegs<"r10d", [R10W]>; - def R11D : RegisterWithSubRegs<"r11d", [R11W]>; - def R12D : RegisterWithSubRegs<"r12d", [R12W]>; - def R13D : RegisterWithSubRegs<"r13d", [R13W]>; - def R14D : RegisterWithSubRegs<"r14d", [R14W]>; - def R15D : RegisterWithSubRegs<"r15d", [R15W]>; - }} - - // 64-bit registers, X86-64 only - let SubRegIndices = [sub_32bit] in { - def RAX : RegisterWithSubRegs<"rax", [EAX]>, DwarfRegNum<[0, -2, -2]>; - def RDX : RegisterWithSubRegs<"rdx", [EDX]>, DwarfRegNum<[1, -2, -2]>; - def RCX : RegisterWithSubRegs<"rcx", [ECX]>, DwarfRegNum<[2, -2, -2]>; - def RBX : RegisterWithSubRegs<"rbx", [EBX]>, DwarfRegNum<[3, -2, -2]>; - def RSI : RegisterWithSubRegs<"rsi", [ESI]>, DwarfRegNum<[4, -2, -2]>; - def RDI : RegisterWithSubRegs<"rdi", [EDI]>, DwarfRegNum<[5, -2, -2]>; - def RBP : RegisterWithSubRegs<"rbp", [EBP]>, DwarfRegNum<[6, -2, -2]>; - def RSP : RegisterWithSubRegs<"rsp", [ESP]>, DwarfRegNum<[7, -2, -2]>; - - // These also require REX. - let CostPerUse = 1 in { - def R8 : RegisterWithSubRegs<"r8", [R8D]>, DwarfRegNum<[8, -2, -2]>; - def R9 : RegisterWithSubRegs<"r9", [R9D]>, DwarfRegNum<[9, -2, -2]>; - def R10 : RegisterWithSubRegs<"r10", [R10D]>, DwarfRegNum<[10, -2, -2]>; - def R11 : RegisterWithSubRegs<"r11", [R11D]>, DwarfRegNum<[11, -2, -2]>; - def R12 : RegisterWithSubRegs<"r12", [R12D]>, DwarfRegNum<[12, -2, -2]>; - def R13 : RegisterWithSubRegs<"r13", [R13D]>, DwarfRegNum<[13, -2, -2]>; - def R14 : RegisterWithSubRegs<"r14", [R14D]>, DwarfRegNum<[14, -2, -2]>; - def R15 : RegisterWithSubRegs<"r15", [R15D]>, DwarfRegNum<[15, -2, -2]>; - def RIP : RegisterWithSubRegs<"rip", [EIP]>, DwarfRegNum<[16, -2, -2]>; - }} - - // MMX Registers. These are actually aliased to ST0 .. ST7 - def MM0 : Register<"mm0">, DwarfRegNum<[41, 29, 29]>; - def MM1 : Register<"mm1">, DwarfRegNum<[42, 30, 30]>; - def MM2 : Register<"mm2">, DwarfRegNum<[43, 31, 31]>; - def MM3 : Register<"mm3">, DwarfRegNum<[44, 32, 32]>; - def MM4 : Register<"mm4">, DwarfRegNum<[45, 33, 33]>; - def MM5 : Register<"mm5">, DwarfRegNum<[46, 34, 34]>; - def MM6 : Register<"mm6">, DwarfRegNum<[47, 35, 35]>; - def MM7 : Register<"mm7">, DwarfRegNum<[48, 36, 36]>; - - // Pseudo Floating Point registers - def FP0 : Register<"fp0">; - def FP1 : Register<"fp1">; - def FP2 : Register<"fp2">; - def FP3 : Register<"fp3">; - def FP4 : Register<"fp4">; - def FP5 : Register<"fp5">; - def FP6 : Register<"fp6">; - - // XMM Registers, used by the various SSE instruction set extensions. - def XMM0: Register<"xmm0">, DwarfRegNum<[17, 21, 21]>; - def XMM1: Register<"xmm1">, DwarfRegNum<[18, 22, 22]>; - def XMM2: Register<"xmm2">, DwarfRegNum<[19, 23, 23]>; - def XMM3: Register<"xmm3">, DwarfRegNum<[20, 24, 24]>; - def XMM4: Register<"xmm4">, DwarfRegNum<[21, 25, 25]>; - def XMM5: Register<"xmm5">, DwarfRegNum<[22, 26, 26]>; - def XMM6: Register<"xmm6">, DwarfRegNum<[23, 27, 27]>; - def XMM7: Register<"xmm7">, DwarfRegNum<[24, 28, 28]>; - - // X86-64 only - let CostPerUse = 1 in { - def XMM8: Register<"xmm8">, DwarfRegNum<[25, -2, -2]>; - def XMM9: Register<"xmm9">, DwarfRegNum<[26, -2, -2]>; - def XMM10: Register<"xmm10">, DwarfRegNum<[27, -2, -2]>; - def XMM11: Register<"xmm11">, DwarfRegNum<[28, -2, -2]>; - def XMM12: Register<"xmm12">, DwarfRegNum<[29, -2, -2]>; - def XMM13: Register<"xmm13">, DwarfRegNum<[30, -2, -2]>; - def XMM14: Register<"xmm14">, DwarfRegNum<[31, -2, -2]>; - def XMM15: Register<"xmm15">, DwarfRegNum<[32, -2, -2]>; - } // CostPerUse - - // YMM Registers, used by AVX instructions - let SubRegIndices = [sub_xmm] in { - def YMM0: RegisterWithSubRegs<"ymm0", [XMM0]>, DwarfRegAlias; - def YMM1: RegisterWithSubRegs<"ymm1", [XMM1]>, DwarfRegAlias; - def YMM2: RegisterWithSubRegs<"ymm2", [XMM2]>, DwarfRegAlias; - def YMM3: RegisterWithSubRegs<"ymm3", [XMM3]>, DwarfRegAlias; - def YMM4: RegisterWithSubRegs<"ymm4", [XMM4]>, DwarfRegAlias; - def YMM5: RegisterWithSubRegs<"ymm5", [XMM5]>, DwarfRegAlias; - def YMM6: RegisterWithSubRegs<"ymm6", [XMM6]>, DwarfRegAlias; - def YMM7: RegisterWithSubRegs<"ymm7", [XMM7]>, DwarfRegAlias; - def YMM8: RegisterWithSubRegs<"ymm8", [XMM8]>, DwarfRegAlias; - def YMM9: RegisterWithSubRegs<"ymm9", [XMM9]>, DwarfRegAlias; - def YMM10: RegisterWithSubRegs<"ymm10", [XMM10]>, DwarfRegAlias; - def YMM11: RegisterWithSubRegs<"ymm11", [XMM11]>, DwarfRegAlias; - def YMM12: RegisterWithSubRegs<"ymm12", [XMM12]>, DwarfRegAlias; - def YMM13: RegisterWithSubRegs<"ymm13", [XMM13]>, DwarfRegAlias; - def YMM14: RegisterWithSubRegs<"ymm14", [XMM14]>, DwarfRegAlias; - def YMM15: RegisterWithSubRegs<"ymm15", [XMM15]>, DwarfRegAlias; - } - - class STRegister A> : Register { - let Aliases = A; - } - - // Floating point stack registers. These don't map one-to-one to the FP - // pseudo registers, but we still mark them as aliasing FP registers. That - // way both kinds can be live without exceeding the stack depth. ST registers - // are only live around inline assembly. - def ST0 : STRegister<"st(0)", []>, DwarfRegNum<[33, 12, 11]>; - def ST1 : STRegister<"st(1)", [FP6]>, DwarfRegNum<[34, 13, 12]>; - def ST2 : STRegister<"st(2)", [FP5]>, DwarfRegNum<[35, 14, 13]>; - def ST3 : STRegister<"st(3)", [FP4]>, DwarfRegNum<[36, 15, 14]>; - def ST4 : STRegister<"st(4)", [FP3]>, DwarfRegNum<[37, 16, 15]>; - def ST5 : STRegister<"st(5)", [FP2]>, DwarfRegNum<[38, 17, 16]>; - def ST6 : STRegister<"st(6)", [FP1]>, DwarfRegNum<[39, 18, 17]>; - def ST7 : STRegister<"st(7)", [FP0]>, DwarfRegNum<[40, 19, 18]>; - - // Floating-point status word - def FPSW : Register<"fpsw">; - - // Status flags register - def EFLAGS : Register<"flags">; - - // Segment registers - def CS : Register<"cs">; - def DS : Register<"ds">; - def SS : Register<"ss">; - def ES : Register<"es">; - def FS : Register<"fs">; - def GS : Register<"gs">; - - // Debug registers - def DR0 : Register<"dr0">; - def DR1 : Register<"dr1">; - def DR2 : Register<"dr2">; - def DR3 : Register<"dr3">; - def DR4 : Register<"dr4">; - def DR5 : Register<"dr5">; - def DR6 : Register<"dr6">; - def DR7 : Register<"dr7">; - - // Control registers - def CR0 : Register<"cr0">; - def CR1 : Register<"cr1">; - def CR2 : Register<"cr2">; - def CR3 : Register<"cr3">; - def CR4 : Register<"cr4">; - def CR5 : Register<"cr5">; - def CR6 : Register<"cr6">; - def CR7 : Register<"cr7">; - def CR8 : Register<"cr8">; - def CR9 : Register<"cr9">; - def CR10 : Register<"cr10">; - def CR11 : Register<"cr11">; - def CR12 : Register<"cr12">; - def CR13 : Register<"cr13">; - def CR14 : Register<"cr14">; - def CR15 : Register<"cr15">; - - // Pseudo index registers - def EIZ : Register<"eiz">; - def RIZ : Register<"riz">; + def sub_xmm : SubRegIndex; } +//===----------------------------------------------------------------------===// +// Register definitions... +// + +// In the register alias definitions below, we define which registers alias +// which others. We only specify which registers the small registers alias, +// because the register file generator is smart enough to figure out that +// AL aliases AX if we tell it that AX aliased AL (for example). + +// Dwarf numbering is different for 32-bit and 64-bit, and there are +// variations by target as well. Currently the first entry is for X86-64, +// second - for EH on X86-32/Darwin and third is 'generic' one (X86-32/Linux +// and debug information on X86-32/Darwin) + +// 8-bit registers +// Low registers +def AL : X86Reg<"al", 0>; +def DL : X86Reg<"dl", 2>; +def CL : X86Reg<"cl", 1>; +def BL : X86Reg<"bl", 3>; + +// High registers. On x86-64, these cannot be used in any instruction +// with a REX prefix. +def AH : X86Reg<"ah", 4>; +def DH : X86Reg<"dh", 6>; +def CH : X86Reg<"ch", 5>; +def BH : X86Reg<"bh", 7>; + +// X86-64 only, requires REX. +let CostPerUse = 1 in { +def SIL : X86Reg<"sil", 6>; +def DIL : X86Reg<"dil", 7>; +def BPL : X86Reg<"bpl", 5>; +def SPL : X86Reg<"spl", 4>; +def R8B : X86Reg<"r8b", 8>; +def R9B : X86Reg<"r9b", 9>; +def R10B : X86Reg<"r10b", 10>; +def R11B : X86Reg<"r11b", 11>; +def R12B : X86Reg<"r12b", 12>; +def R13B : X86Reg<"r13b", 13>; +def R14B : X86Reg<"r14b", 14>; +def R15B : X86Reg<"r15b", 15>; +} + +// 16-bit registers +let SubRegIndices = [sub_8bit, sub_8bit_hi], CoveredBySubRegs = 1 in { +def AX : X86Reg<"ax", 0, [AL,AH]>; +def DX : X86Reg<"dx", 2, [DL,DH]>; +def CX : X86Reg<"cx", 1, [CL,CH]>; +def BX : X86Reg<"bx", 3, [BL,BH]>; +} +let SubRegIndices = [sub_8bit] in { +def SI : X86Reg<"si", 6, [SIL]>; +def DI : X86Reg<"di", 7, [DIL]>; +def BP : X86Reg<"bp", 5, [BPL]>; +def SP : X86Reg<"sp", 4, [SPL]>; +} +def IP : X86Reg<"ip", 0>; + +// X86-64 only, requires REX. +let SubRegIndices = [sub_8bit], CostPerUse = 1 in { +def R8W : X86Reg<"r8w", 8, [R8B]>; +def R9W : X86Reg<"r9w", 9, [R9B]>; +def R10W : X86Reg<"r10w", 10, [R10B]>; +def R11W : X86Reg<"r11w", 11, [R11B]>; +def R12W : X86Reg<"r12w", 12, [R12B]>; +def R13W : X86Reg<"r13w", 13, [R13B]>; +def R14W : X86Reg<"r14w", 14, [R14B]>; +def R15W : X86Reg<"r15w", 15, [R15B]>; +} + +// 32-bit registers +let SubRegIndices = [sub_16bit] in { +def EAX : X86Reg<"eax", 0, [AX]>, DwarfRegNum<[-2, 0, 0]>; +def EDX : X86Reg<"edx", 2, [DX]>, DwarfRegNum<[-2, 2, 2]>; +def ECX : X86Reg<"ecx", 1, [CX]>, DwarfRegNum<[-2, 1, 1]>; +def EBX : X86Reg<"ebx", 3, [BX]>, DwarfRegNum<[-2, 3, 3]>; +def ESI : X86Reg<"esi", 6, [SI]>, DwarfRegNum<[-2, 6, 6]>; +def EDI : X86Reg<"edi", 7, [DI]>, DwarfRegNum<[-2, 7, 7]>; +def EBP : X86Reg<"ebp", 5, [BP]>, DwarfRegNum<[-2, 4, 5]>; +def ESP : X86Reg<"esp", 4, [SP]>, DwarfRegNum<[-2, 5, 4]>; +def EIP : X86Reg<"eip", 0, [IP]>, DwarfRegNum<[-2, 8, 8]>; + +// X86-64 only, requires REX +let CostPerUse = 1 in { +def R8D : X86Reg<"r8d", 8, [R8W]>; +def R9D : X86Reg<"r9d", 9, [R9W]>; +def R10D : X86Reg<"r10d", 10, [R10W]>; +def R11D : X86Reg<"r11d", 11, [R11W]>; +def R12D : X86Reg<"r12d", 12, [R12W]>; +def R13D : X86Reg<"r13d", 13, [R13W]>; +def R14D : X86Reg<"r14d", 14, [R14W]>; +def R15D : X86Reg<"r15d", 15, [R15W]>; +}} + +// 64-bit registers, X86-64 only +let SubRegIndices = [sub_32bit] in { +def RAX : X86Reg<"rax", 0, [EAX]>, DwarfRegNum<[0, -2, -2]>; +def RDX : X86Reg<"rdx", 2, [EDX]>, DwarfRegNum<[1, -2, -2]>; +def RCX : X86Reg<"rcx", 1, [ECX]>, DwarfRegNum<[2, -2, -2]>; +def RBX : X86Reg<"rbx", 3, [EBX]>, DwarfRegNum<[3, -2, -2]>; +def RSI : X86Reg<"rsi", 6, [ESI]>, DwarfRegNum<[4, -2, -2]>; +def RDI : X86Reg<"rdi", 7, [EDI]>, DwarfRegNum<[5, -2, -2]>; +def RBP : X86Reg<"rbp", 5, [EBP]>, DwarfRegNum<[6, -2, -2]>; +def RSP : X86Reg<"rsp", 4, [ESP]>, DwarfRegNum<[7, -2, -2]>; + +// These also require REX. +let CostPerUse = 1 in { +def R8 : X86Reg<"r8", 8, [R8D]>, DwarfRegNum<[ 8, -2, -2]>; +def R9 : X86Reg<"r9", 9, [R9D]>, DwarfRegNum<[ 9, -2, -2]>; +def R10 : X86Reg<"r10", 10, [R10D]>, DwarfRegNum<[10, -2, -2]>; +def R11 : X86Reg<"r11", 11, [R11D]>, DwarfRegNum<[11, -2, -2]>; +def R12 : X86Reg<"r12", 12, [R12D]>, DwarfRegNum<[12, -2, -2]>; +def R13 : X86Reg<"r13", 13, [R13D]>, DwarfRegNum<[13, -2, -2]>; +def R14 : X86Reg<"r14", 14, [R14D]>, DwarfRegNum<[14, -2, -2]>; +def R15 : X86Reg<"r15", 15, [R15D]>, DwarfRegNum<[15, -2, -2]>; +def RIP : X86Reg<"rip", 0, [EIP]>, DwarfRegNum<[16, -2, -2]>; +}} + +// MMX Registers. These are actually aliased to ST0 .. ST7 +def MM0 : X86Reg<"mm0", 0>, DwarfRegNum<[41, 29, 29]>; +def MM1 : X86Reg<"mm1", 1>, DwarfRegNum<[42, 30, 30]>; +def MM2 : X86Reg<"mm2", 2>, DwarfRegNum<[43, 31, 31]>; +def MM3 : X86Reg<"mm3", 3>, DwarfRegNum<[44, 32, 32]>; +def MM4 : X86Reg<"mm4", 4>, DwarfRegNum<[45, 33, 33]>; +def MM5 : X86Reg<"mm5", 5>, DwarfRegNum<[46, 34, 34]>; +def MM6 : X86Reg<"mm6", 6>, DwarfRegNum<[47, 35, 35]>; +def MM7 : X86Reg<"mm7", 7>, DwarfRegNum<[48, 36, 36]>; + +// Pseudo Floating Point registers +def FP0 : X86Reg<"fp0", 0>; +def FP1 : X86Reg<"fp1", 0>; +def FP2 : X86Reg<"fp2", 0>; +def FP3 : X86Reg<"fp3", 0>; +def FP4 : X86Reg<"fp4", 0>; +def FP5 : X86Reg<"fp5", 0>; +def FP6 : X86Reg<"fp6", 0>; + +// XMM Registers, used by the various SSE instruction set extensions. +def XMM0: X86Reg<"xmm0", 0>, DwarfRegNum<[17, 21, 21]>; +def XMM1: X86Reg<"xmm1", 1>, DwarfRegNum<[18, 22, 22]>; +def XMM2: X86Reg<"xmm2", 2>, DwarfRegNum<[19, 23, 23]>; +def XMM3: X86Reg<"xmm3", 3>, DwarfRegNum<[20, 24, 24]>; +def XMM4: X86Reg<"xmm4", 4>, DwarfRegNum<[21, 25, 25]>; +def XMM5: X86Reg<"xmm5", 5>, DwarfRegNum<[22, 26, 26]>; +def XMM6: X86Reg<"xmm6", 6>, DwarfRegNum<[23, 27, 27]>; +def XMM7: X86Reg<"xmm7", 7>, DwarfRegNum<[24, 28, 28]>; + +// X86-64 only +let CostPerUse = 1 in { +def XMM8: X86Reg<"xmm8", 8>, DwarfRegNum<[25, -2, -2]>; +def XMM9: X86Reg<"xmm9", 9>, DwarfRegNum<[26, -2, -2]>; +def XMM10: X86Reg<"xmm10", 10>, DwarfRegNum<[27, -2, -2]>; +def XMM11: X86Reg<"xmm11", 11>, DwarfRegNum<[28, -2, -2]>; +def XMM12: X86Reg<"xmm12", 12>, DwarfRegNum<[29, -2, -2]>; +def XMM13: X86Reg<"xmm13", 13>, DwarfRegNum<[30, -2, -2]>; +def XMM14: X86Reg<"xmm14", 14>, DwarfRegNum<[31, -2, -2]>; +def XMM15: X86Reg<"xmm15", 15>, DwarfRegNum<[32, -2, -2]>; +} // CostPerUse + +// YMM Registers, used by AVX instructions +let SubRegIndices = [sub_xmm] in { +def YMM0: X86Reg<"ymm0", 0, [XMM0]>, DwarfRegAlias; +def YMM1: X86Reg<"ymm1", 1, [XMM1]>, DwarfRegAlias; +def YMM2: X86Reg<"ymm2", 2, [XMM2]>, DwarfRegAlias; +def YMM3: X86Reg<"ymm3", 3, [XMM3]>, DwarfRegAlias; +def YMM4: X86Reg<"ymm4", 4, [XMM4]>, DwarfRegAlias; +def YMM5: X86Reg<"ymm5", 5, [XMM5]>, DwarfRegAlias; +def YMM6: X86Reg<"ymm6", 6, [XMM6]>, DwarfRegAlias; +def YMM7: X86Reg<"ymm7", 7, [XMM7]>, DwarfRegAlias; +def YMM8: X86Reg<"ymm8", 8, [XMM8]>, DwarfRegAlias; +def YMM9: X86Reg<"ymm9", 9, [XMM9]>, DwarfRegAlias; +def YMM10: X86Reg<"ymm10", 10, [XMM10]>, DwarfRegAlias; +def YMM11: X86Reg<"ymm11", 11, [XMM11]>, DwarfRegAlias; +def YMM12: X86Reg<"ymm12", 12, [XMM12]>, DwarfRegAlias; +def YMM13: X86Reg<"ymm13", 13, [XMM13]>, DwarfRegAlias; +def YMM14: X86Reg<"ymm14", 14, [XMM14]>, DwarfRegAlias; +def YMM15: X86Reg<"ymm15", 15, [XMM15]>, DwarfRegAlias; +} + +class STRegister Enc, list A> : X86Reg { + let Aliases = A; +} + +// Floating point stack registers. These don't map one-to-one to the FP +// pseudo registers, but we still mark them as aliasing FP registers. That +// way both kinds can be live without exceeding the stack depth. ST registers +// are only live around inline assembly. +def ST0 : STRegister<"st(0)", 0, []>, DwarfRegNum<[33, 12, 11]>; +def ST1 : STRegister<"st(1)", 1, [FP6]>, DwarfRegNum<[34, 13, 12]>; +def ST2 : STRegister<"st(2)", 2, [FP5]>, DwarfRegNum<[35, 14, 13]>; +def ST3 : STRegister<"st(3)", 3, [FP4]>, DwarfRegNum<[36, 15, 14]>; +def ST4 : STRegister<"st(4)", 4, [FP3]>, DwarfRegNum<[37, 16, 15]>; +def ST5 : STRegister<"st(5)", 5, [FP2]>, DwarfRegNum<[38, 17, 16]>; +def ST6 : STRegister<"st(6)", 6, [FP1]>, DwarfRegNum<[39, 18, 17]>; +def ST7 : STRegister<"st(7)", 7, [FP0]>, DwarfRegNum<[40, 19, 18]>; + +// Floating-point status word +def FPSW : X86Reg<"fpsw", 0>; + +// Status flags register +def EFLAGS : X86Reg<"flags", 0>; + +// Segment registers +def CS : X86Reg<"cs", 1>; +def DS : X86Reg<"ds", 3>; +def SS : X86Reg<"ss", 2>; +def ES : X86Reg<"es", 0>; +def FS : X86Reg<"fs", 4>; +def GS : X86Reg<"gs", 5>; + +// Debug registers +def DR0 : X86Reg<"dr0", 0>; +def DR1 : X86Reg<"dr1", 1>; +def DR2 : X86Reg<"dr2", 2>; +def DR3 : X86Reg<"dr3", 3>; +def DR4 : X86Reg<"dr4", 4>; +def DR5 : X86Reg<"dr5", 5>; +def DR6 : X86Reg<"dr6", 6>; +def DR7 : X86Reg<"dr7", 7>; + +// Control registers +def CR0 : X86Reg<"cr0", 0>; +def CR1 : X86Reg<"cr1", 1>; +def CR2 : X86Reg<"cr2", 2>; +def CR3 : X86Reg<"cr3", 3>; +def CR4 : X86Reg<"cr4", 4>; +def CR5 : X86Reg<"cr5", 5>; +def CR6 : X86Reg<"cr6", 6>; +def CR7 : X86Reg<"cr7", 7>; +def CR8 : X86Reg<"cr8", 8>; +def CR9 : X86Reg<"cr9", 9>; +def CR10 : X86Reg<"cr10", 10>; +def CR11 : X86Reg<"cr11", 11>; +def CR12 : X86Reg<"cr12", 12>; +def CR13 : X86Reg<"cr13", 13>; +def CR14 : X86Reg<"cr14", 14>; +def CR15 : X86Reg<"cr15", 15>; + +// Pseudo index registers +def EIZ : X86Reg<"eiz", 4>; +def RIZ : X86Reg<"riz", 4>; + //===----------------------------------------------------------------------===// // Register Class Definitions... now that we have all of the pieces, define the -- 2.7.4