#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Twine.h"
bool parseMemory(SmallVectorImpl<MCParsedAsmOperand*> &);
bool parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &, StringRef Mnemonic);
bool parsePrefix(ARMMCExpr::VariantKind &RefKind);
- const MCExpr *applyPrefixToExpr(const MCExpr *E,
- MCSymbolRefExpr::VariantKind Variant);
-
-
bool parseMemRegOffsetShift(ARM_AM::ShiftOpc &ShiftType,
unsigned &ShiftAmount);
bool parseDirectiveWord(unsigned Size, SMLoc L);
bool hasV6Ops() const {
return STI.getFeatureBits() & ARM::HasV6Ops;
}
+ bool hasV7Ops() const {
+ return STI.getFeatureBits() & ARM::HasV7Ops;
+ }
void SwitchMode() {
unsigned FB = ComputeAvailableFeatures(STI.ToggleFeature(ARM::ModeThumb));
setAvailableFeatures(FB);
}
+ bool isMClass() const {
+ return STI.getFeatureBits() & ARM::FeatureMClass;
+ }
/// @name Auto-generated Match Functions
/// {
SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parseCoprocRegOperand(
SmallVectorImpl<MCParsedAsmOperand*>&);
+ OperandMatchResultTy parseCoprocOptionOperand(
+ SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parseMemBarrierOptOperand(
SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parseProcIFlagsOperand(
OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
+ OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
+ OperandMatchResultTy parseVectorList(SmallVectorImpl<MCParsedAsmOperand*>&);
// Asm Match Converter Methods
bool cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
const SmallVectorImpl<MCParsedAsmOperand*> &);
bool cvtLdWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
const SmallVectorImpl<MCParsedAsmOperand*> &);
+ bool cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &);
bool cvtLdWriteBackRegAddrMode2(MCInst &Inst, unsigned Opcode,
const SmallVectorImpl<MCParsedAsmOperand*> &);
bool cvtLdWriteBackRegAddrModeImm12(MCInst &Inst, unsigned Opcode,
const SmallVectorImpl<MCParsedAsmOperand*> &);
bool cvtThumbMultiply(MCInst &Inst, unsigned Opcode,
const SmallVectorImpl<MCParsedAsmOperand*> &);
+ bool cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &);
+ bool cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &);
+ bool cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &);
+ bool cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &);
bool validateInstruction(MCInst &Inst,
const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
- void processInstruction(MCInst &Inst,
+ bool processInstruction(MCInst &Inst,
const SmallVectorImpl<MCParsedAsmOperand*> &Ops);
bool shouldOmitCCOutOperand(StringRef Mnemonic,
SmallVectorImpl<MCParsedAsmOperand*> &Operands);
/// instruction.
class ARMOperand : public MCParsedAsmOperand {
enum KindTy {
- CondCode,
- CCOut,
- ITCondMask,
- CoprocNum,
- CoprocReg,
- Immediate,
- MemBarrierOpt,
- Memory,
- PostIndexRegister,
- MSRMask,
- ProcIFlags,
- Register,
- RegisterList,
- DPRRegisterList,
- SPRRegisterList,
- ShiftedRegister,
- ShiftedImmediate,
- ShifterImmediate,
- RotateImmediate,
- BitfieldDescriptor,
- Token
+ k_CondCode,
+ k_CCOut,
+ k_ITCondMask,
+ k_CoprocNum,
+ k_CoprocReg,
+ k_CoprocOption,
+ k_Immediate,
+ k_FPImmediate,
+ k_MemBarrierOpt,
+ k_Memory,
+ k_PostIndexRegister,
+ k_MSRMask,
+ k_ProcIFlags,
+ k_VectorIndex,
+ k_Register,
+ k_RegisterList,
+ k_DPRRegisterList,
+ k_SPRRegisterList,
+ k_VectorList,
+ k_ShiftedRegister,
+ k_ShiftedImmediate,
+ k_ShifterImmediate,
+ k_RotateImmediate,
+ k_BitfieldDescriptor,
+ k_Token
} Kind;
SMLoc StartLoc, EndLoc;
unsigned Val;
} Cop;
+ struct {
+ unsigned Val;
+ } CoprocOption;
+
struct {
unsigned Mask:4;
} ITMask;
unsigned RegNum;
} Reg;
+ // A vector register list is a sequential list of 1 to 4 registers.
+ struct {
+ unsigned RegNum;
+ unsigned Count;
+ } VectorList;
+
+ struct {
+ unsigned Val;
+ } VectorIndex;
+
struct {
const MCExpr *Val;
} Imm;
+ struct {
+ unsigned Val; // encoded 8-bit representation
+ } FPImm;
+
/// Combined record for all forms of ARM address expressions.
struct {
unsigned BaseRegNum;
const MCConstantExpr *OffsetImm; // Offset immediate value
unsigned OffsetRegNum; // Offset register num, when OffsetImm == NULL
ARM_AM::ShiftOpc ShiftType; // Shift type for OffsetReg
- unsigned ShiftImm; // shift for OffsetReg.
+ unsigned ShiftImm; // shift for OffsetReg.
+ unsigned Alignment; // 0 = no alignment specified
+ // n = alignment in bytes (8, 16, or 32)
unsigned isNegative : 1; // Negated OffsetReg? (~'U' bit)
- } Mem;
+ } Memory;
struct {
unsigned RegNum;
StartLoc = o.StartLoc;
EndLoc = o.EndLoc;
switch (Kind) {
- case CondCode:
+ case k_CondCode:
CC = o.CC;
break;
- case ITCondMask:
+ case k_ITCondMask:
ITMask = o.ITMask;
break;
- case Token:
+ case k_Token:
Tok = o.Tok;
break;
- case CCOut:
- case Register:
+ case k_CCOut:
+ case k_Register:
Reg = o.Reg;
break;
- case RegisterList:
- case DPRRegisterList:
- case SPRRegisterList:
+ case k_RegisterList:
+ case k_DPRRegisterList:
+ case k_SPRRegisterList:
Registers = o.Registers;
break;
- case CoprocNum:
- case CoprocReg:
+ case k_VectorList:
+ VectorList = o.VectorList;
+ break;
+ case k_CoprocNum:
+ case k_CoprocReg:
Cop = o.Cop;
break;
- case Immediate:
+ case k_CoprocOption:
+ CoprocOption = o.CoprocOption;
+ break;
+ case k_Immediate:
Imm = o.Imm;
break;
- case MemBarrierOpt:
+ case k_FPImmediate:
+ FPImm = o.FPImm;
+ break;
+ case k_MemBarrierOpt:
MBOpt = o.MBOpt;
break;
- case Memory:
- Mem = o.Mem;
+ case k_Memory:
+ Memory = o.Memory;
break;
- case PostIndexRegister:
+ case k_PostIndexRegister:
PostIdxReg = o.PostIdxReg;
break;
- case MSRMask:
+ case k_MSRMask:
MMask = o.MMask;
break;
- case ProcIFlags:
+ case k_ProcIFlags:
IFlags = o.IFlags;
break;
- case ShifterImmediate:
+ case k_ShifterImmediate:
ShifterImm = o.ShifterImm;
break;
- case ShiftedRegister:
+ case k_ShiftedRegister:
RegShiftedReg = o.RegShiftedReg;
break;
- case ShiftedImmediate:
+ case k_ShiftedImmediate:
RegShiftedImm = o.RegShiftedImm;
break;
- case RotateImmediate:
+ case k_RotateImmediate:
RotImm = o.RotImm;
break;
- case BitfieldDescriptor:
+ case k_BitfieldDescriptor:
Bitfield = o.Bitfield;
break;
+ case k_VectorIndex:
+ VectorIndex = o.VectorIndex;
+ break;
}
}
SMLoc getEndLoc() const { return EndLoc; }
ARMCC::CondCodes getCondCode() const {
- assert(Kind == CondCode && "Invalid access!");
+ assert(Kind == k_CondCode && "Invalid access!");
return CC.Val;
}
unsigned getCoproc() const {
- assert((Kind == CoprocNum || Kind == CoprocReg) && "Invalid access!");
+ assert((Kind == k_CoprocNum || Kind == k_CoprocReg) && "Invalid access!");
return Cop.Val;
}
StringRef getToken() const {
- assert(Kind == Token && "Invalid access!");
+ assert(Kind == k_Token && "Invalid access!");
return StringRef(Tok.Data, Tok.Length);
}
unsigned getReg() const {
- assert((Kind == Register || Kind == CCOut) && "Invalid access!");
+ assert((Kind == k_Register || Kind == k_CCOut) && "Invalid access!");
return Reg.RegNum;
}
const SmallVectorImpl<unsigned> &getRegList() const {
- assert((Kind == RegisterList || Kind == DPRRegisterList ||
- Kind == SPRRegisterList) && "Invalid access!");
+ assert((Kind == k_RegisterList || Kind == k_DPRRegisterList ||
+ Kind == k_SPRRegisterList) && "Invalid access!");
return Registers;
}
const MCExpr *getImm() const {
- assert(Kind == Immediate && "Invalid access!");
+ assert(Kind == k_Immediate && "Invalid access!");
return Imm.Val;
}
+ unsigned getFPImm() const {
+ assert(Kind == k_FPImmediate && "Invalid access!");
+ return FPImm.Val;
+ }
+
+ unsigned getVectorIndex() const {
+ assert(Kind == k_VectorIndex && "Invalid access!");
+ return VectorIndex.Val;
+ }
+
ARM_MB::MemBOpt getMemBarrierOpt() const {
- assert(Kind == MemBarrierOpt && "Invalid access!");
+ assert(Kind == k_MemBarrierOpt && "Invalid access!");
return MBOpt.Val;
}
ARM_PROC::IFlags getProcIFlags() const {
- assert(Kind == ProcIFlags && "Invalid access!");
+ assert(Kind == k_ProcIFlags && "Invalid access!");
return IFlags.Val;
}
unsigned getMSRMask() const {
- assert(Kind == MSRMask && "Invalid access!");
+ assert(Kind == k_MSRMask && "Invalid access!");
return MMask.Val;
}
- bool isCoprocNum() const { return Kind == CoprocNum; }
- bool isCoprocReg() const { return Kind == CoprocReg; }
- bool isCondCode() const { return Kind == CondCode; }
- bool isCCOut() const { return Kind == CCOut; }
- bool isITMask() const { return Kind == ITCondMask; }
- bool isITCondCode() const { return Kind == CondCode; }
- bool isImm() const { return Kind == Immediate; }
+ bool isCoprocNum() const { return Kind == k_CoprocNum; }
+ bool isCoprocReg() const { return Kind == k_CoprocReg; }
+ bool isCoprocOption() const { return Kind == k_CoprocOption; }
+ bool isCondCode() const { return Kind == k_CondCode; }
+ bool isCCOut() const { return Kind == k_CCOut; }
+ bool isITMask() const { return Kind == k_ITCondMask; }
+ bool isITCondCode() const { return Kind == k_CondCode; }
+ bool isImm() const { return Kind == k_Immediate; }
+ bool isFPImm() const { return Kind == k_FPImmediate; }
bool isImm8s4() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return ((Value & 3) == 0) && Value >= -1020 && Value <= 1020;
}
bool isImm0_1020s4() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return ((Value & 3) == 0) && Value >= 0 && Value <= 1020;
}
bool isImm0_508s4() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return ((Value & 3) == 0) && Value >= 0 && Value <= 508;
}
bool isImm0_255() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value < 256;
}
bool isImm0_7() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value < 8;
}
bool isImm0_15() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value < 16;
}
bool isImm0_31() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value < 32;
}
bool isImm1_16() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value > 0 && Value < 17;
}
bool isImm1_32() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value > 0 && Value < 33;
}
+ bool isImm0_32() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ return Value >= 0 && Value < 33;
+ }
bool isImm0_65535() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value < 65536;
}
bool isImm0_65535Expr() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
// If it's not a constant expression, it'll generate a fixup and be
return Value >= 0 && Value < 65536;
}
bool isImm24bit() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value <= 0xffffff;
}
bool isImmThumbSR() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value > 0 && Value < 33;
}
bool isPKHLSLImm() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value >= 0 && Value < 32;
}
bool isPKHASRImm() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
return Value > 0 && Value <= 32;
}
bool isARMSOImm() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return ARM_AM::getSOImmVal(Value) != -1;
}
+ bool isARMSOImmNot() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ return ARM_AM::getSOImmVal(~Value) != -1;
+ }
bool isT2SOImm() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return ARM_AM::getT2SOImmVal(Value) != -1;
}
+ bool isT2SOImmNot() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ return ARM_AM::getT2SOImmVal(~Value) != -1;
+ }
bool isSetEndImm() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Value = CE->getValue();
return Value == 1 || Value == 0;
}
- bool isReg() const { return Kind == Register; }
- bool isRegList() const { return Kind == RegisterList; }
- bool isDPRRegList() const { return Kind == DPRRegisterList; }
- bool isSPRRegList() const { return Kind == SPRRegisterList; }
- bool isToken() const { return Kind == Token; }
- bool isMemBarrierOpt() const { return Kind == MemBarrierOpt; }
- bool isMemory() const { return Kind == Memory; }
- bool isShifterImm() const { return Kind == ShifterImmediate; }
- bool isRegShiftedReg() const { return Kind == ShiftedRegister; }
- bool isRegShiftedImm() const { return Kind == ShiftedImmediate; }
- bool isRotImm() const { return Kind == RotateImmediate; }
- bool isBitfield() const { return Kind == BitfieldDescriptor; }
- bool isPostIdxRegShifted() const { return Kind == PostIndexRegister; }
+ bool isReg() const { return Kind == k_Register; }
+ bool isRegList() const { return Kind == k_RegisterList; }
+ bool isDPRRegList() const { return Kind == k_DPRRegisterList; }
+ bool isSPRRegList() const { return Kind == k_SPRRegisterList; }
+ bool isToken() const { return Kind == k_Token; }
+ bool isMemBarrierOpt() const { return Kind == k_MemBarrierOpt; }
+ bool isMemory() const { return Kind == k_Memory; }
+ bool isShifterImm() const { return Kind == k_ShifterImmediate; }
+ bool isRegShiftedReg() const { return Kind == k_ShiftedRegister; }
+ bool isRegShiftedImm() const { return Kind == k_ShiftedImmediate; }
+ bool isRotImm() const { return Kind == k_RotateImmediate; }
+ bool isBitfield() const { return Kind == k_BitfieldDescriptor; }
+ bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; }
bool isPostIdxReg() const {
- return Kind == PostIndexRegister && PostIdxReg.ShiftTy == ARM_AM::no_shift;
+ return Kind == k_PostIndexRegister && PostIdxReg.ShiftTy == ARM_AM::no_shift;
}
- bool isMemNoOffset() const {
- if (Kind != Memory)
+ bool isMemNoOffset(bool alignOK = false) const {
+ if (!isMemory())
return false;
// No offset of any kind.
- return Mem.OffsetRegNum == 0 && Mem.OffsetImm == 0;
+ return Memory.OffsetRegNum == 0 && Memory.OffsetImm == 0 &&
+ (alignOK || Memory.Alignment == 0);
+ }
+ bool isAlignedMemory() const {
+ return isMemNoOffset(true);
}
bool isAddrMode2() const {
- if (Kind != Memory)
- return false;
+ if (!isMemory() || Memory.Alignment != 0) return false;
// Check for register offset.
- if (Mem.OffsetRegNum) return true;
+ if (Memory.OffsetRegNum) return true;
// Immediate offset in range [-4095, 4095].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val > -4096 && Val < 4096;
}
bool isAM2OffsetImm() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
// Immediate offset in range [-4095, 4095].
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
return Val > -4096 && Val < 4096;
}
bool isAddrMode3() const {
- if (Kind != Memory)
- return false;
+ if (!isMemory() || Memory.Alignment != 0) return false;
// No shifts are legal for AM3.
- if (Mem.ShiftType != ARM_AM::no_shift) return false;
+ if (Memory.ShiftType != ARM_AM::no_shift) return false;
// Check for register offset.
- if (Mem.OffsetRegNum) return true;
+ if (Memory.OffsetRegNum) return true;
// Immediate offset in range [-255, 255].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val > -256 && Val < 256;
}
bool isAM3Offset() const {
- if (Kind != Immediate && Kind != PostIndexRegister)
+ if (Kind != k_Immediate && Kind != k_PostIndexRegister)
return false;
- if (Kind == PostIndexRegister)
+ if (Kind == k_PostIndexRegister)
return PostIdxReg.ShiftTy == ARM_AM::no_shift;
// Immediate offset in range [-255, 255].
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
return (Val > -256 && Val < 256) || Val == INT32_MIN;
}
bool isAddrMode5() const {
- if (Kind != Memory)
- return false;
+ // If we have an immediate that's not a constant, treat it as a label
+ // reference needing a fixup. If it is a constant, it's something else
+ // and we reject it.
+ if (Kind == k_Immediate && !isa<MCConstantExpr>(getImm()))
+ return true;
+ if (!isMemory() || Memory.Alignment != 0) return false;
// Check for register offset.
- if (Mem.OffsetRegNum) return false;
+ if (Memory.OffsetRegNum) return false;
// Immediate offset in range [-1020, 1020] and a multiple of 4.
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return (Val >= -1020 && Val <= 1020 && ((Val & 3) == 0)) ||
- Val == INT32_MIN;
+ Val == INT32_MIN;
+ }
+ bool isMemTBB() const {
+ if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
+ Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
+ return false;
+ return true;
+ }
+ bool isMemTBH() const {
+ if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
+ Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm != 1 ||
+ Memory.Alignment != 0 )
+ return false;
+ return true;
}
bool isMemRegOffset() const {
- if (Kind != Memory || !Mem.OffsetRegNum)
+ if (!isMemory() || !Memory.OffsetRegNum || Memory.Alignment != 0)
return false;
return true;
}
bool isT2MemRegOffset() const {
- if (Kind != Memory || !Mem.OffsetRegNum || Mem.isNegative)
+ if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
+ Memory.Alignment != 0)
return false;
// Only lsl #{0, 1, 2, 3} allowed.
- if (Mem.ShiftType == ARM_AM::no_shift)
+ if (Memory.ShiftType == ARM_AM::no_shift)
return true;
- if (Mem.ShiftType != ARM_AM::lsl || Mem.ShiftImm > 3)
+ if (Memory.ShiftType != ARM_AM::lsl || Memory.ShiftImm > 3)
return false;
return true;
}
bool isMemThumbRR() const {
// Thumb reg+reg addressing is simple. Just two registers, a base and
// an offset. No shifts, negations or any other complicating factors.
- if (Kind != Memory || !Mem.OffsetRegNum || Mem.isNegative ||
- Mem.ShiftType != ARM_AM::no_shift)
+ if (!isMemory() || !Memory.OffsetRegNum || Memory.isNegative ||
+ Memory.ShiftType != ARM_AM::no_shift || Memory.Alignment != 0)
return false;
- return isARMLowRegister(Mem.BaseRegNum) &&
- (!Mem.OffsetRegNum || isARMLowRegister(Mem.OffsetRegNum));
+ return isARMLowRegister(Memory.BaseRegNum) &&
+ (!Memory.OffsetRegNum || isARMLowRegister(Memory.OffsetRegNum));
}
bool isMemThumbRIs4() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0 ||
- !isARMLowRegister(Mem.BaseRegNum))
+ if (!isMemory() || Memory.OffsetRegNum != 0 ||
+ !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
return false;
// Immediate offset, multiple of 4 in range [0, 124].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= 0 && Val <= 124 && (Val % 4) == 0;
}
bool isMemThumbRIs2() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0 ||
- !isARMLowRegister(Mem.BaseRegNum))
+ if (!isMemory() || Memory.OffsetRegNum != 0 ||
+ !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
return false;
// Immediate offset, multiple of 4 in range [0, 62].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= 0 && Val <= 62 && (Val % 2) == 0;
}
bool isMemThumbRIs1() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0 ||
- !isARMLowRegister(Mem.BaseRegNum))
+ if (!isMemory() || Memory.OffsetRegNum != 0 ||
+ !isARMLowRegister(Memory.BaseRegNum) || Memory.Alignment != 0)
return false;
// Immediate offset in range [0, 31].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= 0 && Val <= 31;
}
bool isMemThumbSPI() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0 || Mem.BaseRegNum != ARM::SP)
+ if (!isMemory() || Memory.OffsetRegNum != 0 ||
+ Memory.BaseRegNum != ARM::SP || Memory.Alignment != 0)
return false;
// Immediate offset, multiple of 4 in range [0, 1020].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= 0 && Val <= 1020 && (Val % 4) == 0;
}
bool isMemImm8s4Offset() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset a multiple of 4 in range [-1020, 1020].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= -1020 && Val <= 1020 && (Val & 3) == 0;
}
bool isMemImm0_1020s4Offset() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset a multiple of 4 in range [0, 1020].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= 0 && Val <= 1020 && (Val & 3) == 0;
}
bool isMemImm8Offset() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset in range [-255, 255].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
- return Val > -256 && Val < 256;
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
+ return (Val == INT32_MIN) || (Val > -256 && Val < 256);
}
bool isMemPosImm8Offset() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset in range [0, 255].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val >= 0 && Val < 256;
}
bool isMemNegImm8Offset() const {
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset in range [-255, -1].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return Val > -256 && Val < 0;
}
bool isMemUImm12Offset() const {
- // If we have an immediate that's not a constant, treat it as a label
- // reference needing a fixup. If it is a constant, it's something else
- // and we reject it.
- if (Kind == Immediate && !isa<MCConstantExpr>(getImm()))
- return true;
-
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset in range [0, 4095].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return (Val >= 0 && Val < 4096);
}
bool isMemImm12Offset() const {
// If we have an immediate that's not a constant, treat it as a label
// reference needing a fixup. If it is a constant, it's something else
// and we reject it.
- if (Kind == Immediate && !isa<MCConstantExpr>(getImm()))
+ if (Kind == k_Immediate && !isa<MCConstantExpr>(getImm()))
return true;
- if (Kind != Memory || Mem.OffsetRegNum != 0)
+ if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)
return false;
// Immediate offset in range [-4095, 4095].
- if (!Mem.OffsetImm) return true;
- int64_t Val = Mem.OffsetImm->getValue();
+ if (!Memory.OffsetImm) return true;
+ int64_t Val = Memory.OffsetImm->getValue();
return (Val > -4096 && Val < 4096) || (Val == INT32_MIN);
}
bool isPostIdxImm8() const {
- if (Kind != Immediate)
+ if (Kind != k_Immediate)
return false;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
if (!CE) return false;
int64_t Val = CE->getValue();
return (Val > -256 && Val < 256) || (Val == INT32_MIN);
}
+ bool isPostIdxImm8s4() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ if (!CE) return false;
+ int64_t Val = CE->getValue();
+ return ((Val & 3) == 0 && Val >= -1020 && Val <= 1020) ||
+ (Val == INT32_MIN);
+ }
+
+ bool isMSRMask() const { return Kind == k_MSRMask; }
+ bool isProcIFlags() const { return Kind == k_ProcIFlags; }
+
+ // NEON operands.
+ bool isVecListOneD() const {
+ if (Kind != k_VectorList) return false;
+ return VectorList.Count == 1;
+ }
+
+ bool isVecListTwoD() const {
+ if (Kind != k_VectorList) return false;
+ return VectorList.Count == 2;
+ }
+
+ bool isVecListThreeD() const {
+ if (Kind != k_VectorList) return false;
+ return VectorList.Count == 3;
+ }
+
+ bool isVecListFourD() const {
+ if (Kind != k_VectorList) return false;
+ return VectorList.Count == 4;
+ }
+
+ bool isVecListTwoQ() const {
+ if (Kind != k_VectorList) return false;
+ //FIXME: We haven't taught the parser to handle by-two register lists
+ // yet, so don't pretend to know one.
+ return VectorList.Count == 2 && false;
+ }
+
+ bool isVectorIndex8() const {
+ if (Kind != k_VectorIndex) return false;
+ return VectorIndex.Val < 8;
+ }
+ bool isVectorIndex16() const {
+ if (Kind != k_VectorIndex) return false;
+ return VectorIndex.Val < 4;
+ }
+ bool isVectorIndex32() const {
+ if (Kind != k_VectorIndex) return false;
+ return VectorIndex.Val < 2;
+ }
+
+ bool isNEONi8splat() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ // Must be a constant.
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ // i8 value splatted across 8 bytes. The immediate is just the 8 byte
+ // value.
+ return Value >= 0 && Value < 256;
+ }
+
+ bool isNEONi16splat() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ // Must be a constant.
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ // i16 value in the range [0,255] or [0x0100, 0xff00]
+ return (Value >= 0 && Value < 256) || (Value >= 0x0100 && Value <= 0xff00);
+ }
+
+ bool isNEONi32splat() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ // Must be a constant.
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X.
+ return (Value >= 0 && Value < 256) ||
+ (Value >= 0x0100 && Value <= 0xff00) ||
+ (Value >= 0x010000 && Value <= 0xff0000) ||
+ (Value >= 0x01000000 && Value <= 0xff000000);
+ }
- bool isMSRMask() const { return Kind == MSRMask; }
- bool isProcIFlags() const { return Kind == ProcIFlags; }
+ bool isNEONi32vmov() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ // Must be a constant.
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
+ // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
+ return (Value >= 0 && Value < 256) ||
+ (Value >= 0x0100 && Value <= 0xff00) ||
+ (Value >= 0x010000 && Value <= 0xff0000) ||
+ (Value >= 0x01000000 && Value <= 0xff000000) ||
+ (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
+ (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
+ }
+
+ bool isNEONi64splat() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ // Must be a constant.
+ if (!CE) return false;
+ uint64_t Value = CE->getValue();
+ // i64 value with each byte being either 0 or 0xff.
+ for (unsigned i = 0; i < 8; ++i)
+ if ((Value & 0xff) != 0 && (Value & 0xff) != 0xff) return false;
+ return true;
+ }
void addExpr(MCInst &Inst, const MCExpr *Expr) const {
// Add as immediates when possible. Null MCExpr = 0.
Inst.addOperand(MCOperand::CreateImm(getCoproc()));
}
+ void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateImm(getCoproc()));
+ }
+
+ void addCoprocOptionOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateImm(CoprocOption.Val));
+ }
+
void addITMaskOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
Inst.addOperand(MCOperand::CreateImm(ITMask.Mask));
Inst.addOperand(MCOperand::CreateImm(unsigned(getCondCode())));
}
- void addCoprocRegOperands(MCInst &Inst, unsigned N) const {
- assert(N == 1 && "Invalid number of operands!");
- Inst.addOperand(MCOperand::CreateImm(getCoproc()));
- }
-
void addCCOutOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
Inst.addOperand(MCOperand::CreateReg(getReg()));
addExpr(Inst, getImm());
}
+ void addFPImmOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateImm(getFPImm()));
+ }
+
void addImm8s4Operands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
// FIXME: We really want to scale the value here, but the LDRD/STRD
Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1));
}
+ void addImm0_32Operands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ addExpr(Inst, getImm());
+ }
+
void addImm0_65535Operands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
addExpr(Inst, getImm());
addExpr(Inst, getImm());
}
+ void addT2SOImmNotOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The operand is actually a t2_so_imm, but we have its bitwise
+ // negation in the assembly source, so twiddle it here.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
+ }
+
+ void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The operand is actually a so_imm, but we have its bitwise
+ // negation in the assembly source, so twiddle it here.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
+ }
+
void addSetEndImmOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
addExpr(Inst, getImm());
void addMemNoOffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ }
+
+ void addAlignedMemoryOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 2 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateImm(Memory.Alignment));
}
void addAddrMode2Operands(MCInst &Inst, unsigned N) const {
assert(N == 3 && "Invalid number of operands!");
- int32_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- if (!Mem.OffsetRegNum) {
+ int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
+ if (!Memory.OffsetRegNum) {
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
// Special case for #-0
if (Val == INT32_MIN) Val = 0;
} else {
// For register offset, we encode the shift type and negation flag
// here.
- Val = ARM_AM::getAM2Opc(Mem.isNegative ? ARM_AM::sub : ARM_AM::add,
- Mem.ShiftImm, Mem.ShiftType);
+ Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
+ Memory.ShiftImm, Memory.ShiftType);
}
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
- Inst.addOperand(MCOperand::CreateReg(Mem.OffsetRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addAddrMode3Operands(MCInst &Inst, unsigned N) const {
assert(N == 3 && "Invalid number of operands!");
- int32_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- if (!Mem.OffsetRegNum) {
+ int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
+ if (!Memory.OffsetRegNum) {
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
// Special case for #-0
if (Val == INT32_MIN) Val = 0;
} else {
// For register offset, we encode the shift type and negation flag
// here.
- Val = ARM_AM::getAM3Opc(Mem.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
+ Val = ARM_AM::getAM3Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add, 0);
}
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
- Inst.addOperand(MCOperand::CreateReg(Mem.OffsetRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addAM3OffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- if (Kind == PostIndexRegister) {
+ if (Kind == k_PostIndexRegister) {
int32_t Val =
ARM_AM::getAM3Opc(PostIdxReg.isAdd ? ARM_AM::add : ARM_AM::sub, 0);
Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
void addAddrMode5Operands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
+ // If we have an immediate that's not a constant, treat it as a label
+ // reference needing a fixup. If it is a constant, it's something else
+ // and we reject it.
+ if (isImm()) {
+ Inst.addOperand(MCOperand::CreateExpr(getImm()));
+ Inst.addOperand(MCOperand::CreateImm(0));
+ return;
+ }
+
// The lower two bits are always zero and as such are not encoded.
- int32_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() / 4 : 0;
+ int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
ARM_AM::AddrOpc AddSub = Val < 0 ? ARM_AM::sub : ARM_AM::add;
// Special case for #-0
if (Val == INT32_MIN) Val = 0;
if (Val < 0) Val = -Val;
Val = ARM_AM::getAM5Opc(AddSub, Val);
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemImm8s4OffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemImm0_1020s4OffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
// The lower two bits are always zero and as such are not encoded.
- int32_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() / 4 : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int32_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() / 4 : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemImm8OffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
// If this is an immediate, it's a label reference.
- if (Kind == Immediate) {
+ if (Kind == k_Immediate) {
addExpr(Inst, getImm());
Inst.addOperand(MCOperand::CreateImm(0));
return;
}
// Otherwise, it's a normal memory reg+offset.
- int64_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemImm12OffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
// If this is an immediate, it's a label reference.
- if (Kind == Immediate) {
+ if (Kind == k_Immediate) {
addExpr(Inst, getImm());
Inst.addOperand(MCOperand::CreateImm(0));
return;
}
// Otherwise, it's a normal memory reg+offset.
- int64_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? Memory.OffsetImm->getValue() : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
+ void addMemTBBOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 2 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
+ }
+
+ void addMemTBHOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 2 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
+ }
+
void addMemRegOffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 3 && "Invalid number of operands!");
- unsigned Val = ARM_AM::getAM2Opc(Mem.isNegative ? ARM_AM::sub : ARM_AM::add,
- Mem.ShiftImm, Mem.ShiftType);
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
- Inst.addOperand(MCOperand::CreateReg(Mem.OffsetRegNum));
+ unsigned Val = ARM_AM::getAM2Opc(Memory.isNegative ? ARM_AM::sub : ARM_AM::add,
+ Memory.ShiftImm, Memory.ShiftType);
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addT2MemRegOffsetOperands(MCInst &Inst, unsigned N) const {
assert(N == 3 && "Invalid number of operands!");
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
- Inst.addOperand(MCOperand::CreateReg(Mem.OffsetRegNum));
- Inst.addOperand(MCOperand::CreateImm(Mem.ShiftImm));
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
+ Inst.addOperand(MCOperand::CreateImm(Memory.ShiftImm));
}
void addMemThumbRROperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
- Inst.addOperand(MCOperand::CreateReg(Mem.OffsetRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
+ Inst.addOperand(MCOperand::CreateReg(Memory.OffsetRegNum));
}
void addMemThumbRIs4Operands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? (Mem.OffsetImm->getValue() / 4) : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemThumbRIs2Operands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? (Mem.OffsetImm->getValue() / 2) : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 2) : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemThumbRIs1Operands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? (Mem.OffsetImm->getValue()) : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue()) : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
void addMemThumbSPIOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? (Mem.OffsetImm->getValue() / 4) : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
+ int64_t Val = Memory.OffsetImm ? (Memory.OffsetImm->getValue() / 4) : 0;
+ Inst.addOperand(MCOperand::CreateReg(Memory.BaseRegNum));
Inst.addOperand(MCOperand::CreateImm(Val));
}
Inst.addOperand(MCOperand::CreateImm(Imm));
}
+ void addPostIdxImm8s4Operands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ assert(CE && "non-constant post-idx-imm8s4 operand!");
+ int Imm = CE->getValue();
+ bool isAdd = Imm >= 0;
+ if (Imm == INT32_MIN) Imm = 0;
+ // Immediate is scaled by 4.
+ Imm = ((Imm < 0 ? -Imm : Imm) / 4) | (int)isAdd << 8;
+ Inst.addOperand(MCOperand::CreateImm(Imm));
+ }
+
void addPostIdxRegOperands(MCInst &Inst, unsigned N) const {
assert(N == 2 && "Invalid number of operands!");
Inst.addOperand(MCOperand::CreateReg(PostIdxReg.RegNum));
Inst.addOperand(MCOperand::CreateImm(unsigned(getProcIFlags())));
}
+ void addVecListOneDOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
+ }
+
+ void addVecListTwoDOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // Only the first register actually goes on the instruction. The rest
+ // are implied by the opcode.
+ Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
+ }
+
+ void addVecListThreeDOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // Only the first register actually goes on the instruction. The rest
+ // are implied by the opcode.
+ Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
+ }
+
+ void addVecListFourDOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // Only the first register actually goes on the instruction. The rest
+ // are implied by the opcode.
+ Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
+ }
+
+ void addVecListTwoQOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // Only the first register actually goes on the instruction. The rest
+ // are implied by the opcode.
+ Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
+ }
+
+ void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
+ }
+
+ void addVectorIndex16Operands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
+ }
+
+ void addVectorIndex32Operands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));
+ }
+
+ void addNEONi8splatOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The immediate encodes the type of constant as well as the value.
+ // Mask in that this is an i8 splat.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ Inst.addOperand(MCOperand::CreateImm(CE->getValue() | 0xe00));
+ }
+
+ void addNEONi16splatOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The immediate encodes the type of constant as well as the value.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ unsigned Value = CE->getValue();
+ if (Value >= 256)
+ Value = (Value >> 8) | 0xa00;
+ else
+ Value |= 0x800;
+ Inst.addOperand(MCOperand::CreateImm(Value));
+ }
+
+ void addNEONi32splatOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The immediate encodes the type of constant as well as the value.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ unsigned Value = CE->getValue();
+ if (Value >= 256 && Value <= 0xff00)
+ Value = (Value >> 8) | 0x200;
+ else if (Value > 0xffff && Value <= 0xff0000)
+ Value = (Value >> 16) | 0x400;
+ else if (Value > 0xffffff)
+ Value = (Value >> 24) | 0x600;
+ Inst.addOperand(MCOperand::CreateImm(Value));
+ }
+
+ void addNEONi32vmovOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The immediate encodes the type of constant as well as the value.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ unsigned Value = CE->getValue();
+ if (Value >= 256 && Value <= 0xffff)
+ Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
+ else if (Value > 0xffff && Value <= 0xffffff)
+ Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
+ else if (Value > 0xffffff)
+ Value = (Value >> 24) | 0x600;
+ Inst.addOperand(MCOperand::CreateImm(Value));
+ }
+
+ void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The immediate encodes the type of constant as well as the value.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ uint64_t Value = CE->getValue();
+ unsigned Imm = 0;
+ for (unsigned i = 0; i < 8; ++i, Value >>= 8) {
+ Imm |= (Value & 1) << i;
+ }
+ Inst.addOperand(MCOperand::CreateImm(Imm | 0x1e00));
+ }
+
virtual void print(raw_ostream &OS) const;
static ARMOperand *CreateITMask(unsigned Mask, SMLoc S) {
- ARMOperand *Op = new ARMOperand(ITCondMask);
+ ARMOperand *Op = new ARMOperand(k_ITCondMask);
Op->ITMask.Mask = Mask;
Op->StartLoc = S;
Op->EndLoc = S;
}
static ARMOperand *CreateCondCode(ARMCC::CondCodes CC, SMLoc S) {
- ARMOperand *Op = new ARMOperand(CondCode);
+ ARMOperand *Op = new ARMOperand(k_CondCode);
Op->CC.Val = CC;
Op->StartLoc = S;
Op->EndLoc = S;
}
static ARMOperand *CreateCoprocNum(unsigned CopVal, SMLoc S) {
- ARMOperand *Op = new ARMOperand(CoprocNum);
+ ARMOperand *Op = new ARMOperand(k_CoprocNum);
Op->Cop.Val = CopVal;
Op->StartLoc = S;
Op->EndLoc = S;
}
static ARMOperand *CreateCoprocReg(unsigned CopVal, SMLoc S) {
- ARMOperand *Op = new ARMOperand(CoprocReg);
+ ARMOperand *Op = new ARMOperand(k_CoprocReg);
Op->Cop.Val = CopVal;
Op->StartLoc = S;
Op->EndLoc = S;
return Op;
}
+ static ARMOperand *CreateCoprocOption(unsigned Val, SMLoc S, SMLoc E) {
+ ARMOperand *Op = new ARMOperand(k_CoprocOption);
+ Op->Cop.Val = Val;
+ Op->StartLoc = S;
+ Op->EndLoc = E;
+ return Op;
+ }
+
static ARMOperand *CreateCCOut(unsigned RegNum, SMLoc S) {
- ARMOperand *Op = new ARMOperand(CCOut);
+ ARMOperand *Op = new ARMOperand(k_CCOut);
Op->Reg.RegNum = RegNum;
Op->StartLoc = S;
Op->EndLoc = S;
}
static ARMOperand *CreateToken(StringRef Str, SMLoc S) {
- ARMOperand *Op = new ARMOperand(Token);
+ ARMOperand *Op = new ARMOperand(k_Token);
Op->Tok.Data = Str.data();
Op->Tok.Length = Str.size();
Op->StartLoc = S;
}
static ARMOperand *CreateReg(unsigned RegNum, SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(Register);
+ ARMOperand *Op = new ARMOperand(k_Register);
Op->Reg.RegNum = RegNum;
Op->StartLoc = S;
Op->EndLoc = E;
unsigned ShiftReg,
unsigned ShiftImm,
SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(ShiftedRegister);
+ ARMOperand *Op = new ARMOperand(k_ShiftedRegister);
Op->RegShiftedReg.ShiftTy = ShTy;
Op->RegShiftedReg.SrcReg = SrcReg;
Op->RegShiftedReg.ShiftReg = ShiftReg;
unsigned SrcReg,
unsigned ShiftImm,
SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(ShiftedImmediate);
+ ARMOperand *Op = new ARMOperand(k_ShiftedImmediate);
Op->RegShiftedImm.ShiftTy = ShTy;
Op->RegShiftedImm.SrcReg = SrcReg;
Op->RegShiftedImm.ShiftImm = ShiftImm;
static ARMOperand *CreateShifterImm(bool isASR, unsigned Imm,
SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(ShifterImmediate);
+ ARMOperand *Op = new ARMOperand(k_ShifterImmediate);
Op->ShifterImm.isASR = isASR;
Op->ShifterImm.Imm = Imm;
Op->StartLoc = S;
}
static ARMOperand *CreateRotImm(unsigned Imm, SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(RotateImmediate);
+ ARMOperand *Op = new ARMOperand(k_RotateImmediate);
Op->RotImm.Imm = Imm;
Op->StartLoc = S;
Op->EndLoc = E;
static ARMOperand *CreateBitfield(unsigned LSB, unsigned Width,
SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(BitfieldDescriptor);
+ ARMOperand *Op = new ARMOperand(k_BitfieldDescriptor);
Op->Bitfield.LSB = LSB;
Op->Bitfield.Width = Width;
Op->StartLoc = S;
static ARMOperand *
CreateRegList(const SmallVectorImpl<std::pair<unsigned, SMLoc> > &Regs,
SMLoc StartLoc, SMLoc EndLoc) {
- KindTy Kind = RegisterList;
+ KindTy Kind = k_RegisterList;
if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Regs.front().first))
- Kind = DPRRegisterList;
+ Kind = k_DPRRegisterList;
else if (ARMMCRegisterClasses[ARM::SPRRegClassID].
contains(Regs.front().first))
- Kind = SPRRegisterList;
+ Kind = k_SPRRegisterList;
ARMOperand *Op = new ARMOperand(Kind);
for (SmallVectorImpl<std::pair<unsigned, SMLoc> >::const_iterator
return Op;
}
+ static ARMOperand *CreateVectorList(unsigned RegNum, unsigned Count,
+ SMLoc S, SMLoc E) {
+ ARMOperand *Op = new ARMOperand(k_VectorList);
+ Op->VectorList.RegNum = RegNum;
+ Op->VectorList.Count = Count;
+ Op->StartLoc = S;
+ Op->EndLoc = E;
+ return Op;
+ }
+
+ static ARMOperand *CreateVectorIndex(unsigned Idx, SMLoc S, SMLoc E,
+ MCContext &Ctx) {
+ ARMOperand *Op = new ARMOperand(k_VectorIndex);
+ Op->VectorIndex.Val = Idx;
+ Op->StartLoc = S;
+ Op->EndLoc = E;
+ return Op;
+ }
+
static ARMOperand *CreateImm(const MCExpr *Val, SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(Immediate);
+ ARMOperand *Op = new ARMOperand(k_Immediate);
Op->Imm.Val = Val;
Op->StartLoc = S;
Op->EndLoc = E;
return Op;
}
+ static ARMOperand *CreateFPImm(unsigned Val, SMLoc S, MCContext &Ctx) {
+ ARMOperand *Op = new ARMOperand(k_FPImmediate);
+ Op->FPImm.Val = Val;
+ Op->StartLoc = S;
+ Op->EndLoc = S;
+ return Op;
+ }
+
static ARMOperand *CreateMem(unsigned BaseRegNum,
const MCConstantExpr *OffsetImm,
unsigned OffsetRegNum,
ARM_AM::ShiftOpc ShiftType,
unsigned ShiftImm,
+ unsigned Alignment,
bool isNegative,
SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(Memory);
- Op->Mem.BaseRegNum = BaseRegNum;
- Op->Mem.OffsetImm = OffsetImm;
- Op->Mem.OffsetRegNum = OffsetRegNum;
- Op->Mem.ShiftType = ShiftType;
- Op->Mem.ShiftImm = ShiftImm;
- Op->Mem.isNegative = isNegative;
+ ARMOperand *Op = new ARMOperand(k_Memory);
+ Op->Memory.BaseRegNum = BaseRegNum;
+ Op->Memory.OffsetImm = OffsetImm;
+ Op->Memory.OffsetRegNum = OffsetRegNum;
+ Op->Memory.ShiftType = ShiftType;
+ Op->Memory.ShiftImm = ShiftImm;
+ Op->Memory.Alignment = Alignment;
+ Op->Memory.isNegative = isNegative;
Op->StartLoc = S;
Op->EndLoc = E;
return Op;
ARM_AM::ShiftOpc ShiftTy,
unsigned ShiftImm,
SMLoc S, SMLoc E) {
- ARMOperand *Op = new ARMOperand(PostIndexRegister);
+ ARMOperand *Op = new ARMOperand(k_PostIndexRegister);
Op->PostIdxReg.RegNum = RegNum;
Op->PostIdxReg.isAdd = isAdd;
Op->PostIdxReg.ShiftTy = ShiftTy;
}
static ARMOperand *CreateMemBarrierOpt(ARM_MB::MemBOpt Opt, SMLoc S) {
- ARMOperand *Op = new ARMOperand(MemBarrierOpt);
+ ARMOperand *Op = new ARMOperand(k_MemBarrierOpt);
Op->MBOpt.Val = Opt;
Op->StartLoc = S;
Op->EndLoc = S;
}
static ARMOperand *CreateProcIFlags(ARM_PROC::IFlags IFlags, SMLoc S) {
- ARMOperand *Op = new ARMOperand(ProcIFlags);
+ ARMOperand *Op = new ARMOperand(k_ProcIFlags);
Op->IFlags.Val = IFlags;
Op->StartLoc = S;
Op->EndLoc = S;
}
static ARMOperand *CreateMSRMask(unsigned MMask, SMLoc S) {
- ARMOperand *Op = new ARMOperand(MSRMask);
+ ARMOperand *Op = new ARMOperand(k_MSRMask);
Op->MMask.Val = MMask;
Op->StartLoc = S;
Op->EndLoc = S;
void ARMOperand::print(raw_ostream &OS) const {
switch (Kind) {
- case CondCode:
+ case k_FPImmediate:
+ OS << "<fpimm " << getFPImm() << "(" << ARM_AM::getFPImmFloat(getFPImm())
+ << ") >";
+ break;
+ case k_CondCode:
OS << "<ARMCC::" << ARMCondCodeToString(getCondCode()) << ">";
break;
- case CCOut:
+ case k_CCOut:
OS << "<ccout " << getReg() << ">";
break;
- case ITCondMask: {
- static char MaskStr[][6] = { "()", "(t)", "(e)", "(tt)", "(et)", "(te)",
- "(ee)", "(ttt)", "(ett)", "(tet)", "(eet)", "(tte)", "(ete)",
- "(tee)", "(eee)" };
+ case k_ITCondMask: {
+ static const char *MaskStr[] = {
+ "()", "(t)", "(e)", "(tt)", "(et)", "(te)", "(ee)", "(ttt)", "(ett)",
+ "(tet)", "(eet)", "(tte)", "(ete)", "(tee)", "(eee)"
+ };
assert((ITMask.Mask & 0xf) == ITMask.Mask);
OS << "<it-mask " << MaskStr[ITMask.Mask] << ">";
break;
}
- case CoprocNum:
+ case k_CoprocNum:
OS << "<coprocessor number: " << getCoproc() << ">";
break;
- case CoprocReg:
+ case k_CoprocReg:
OS << "<coprocessor register: " << getCoproc() << ">";
break;
- case MSRMask:
+ case k_CoprocOption:
+ OS << "<coprocessor option: " << CoprocOption.Val << ">";
+ break;
+ case k_MSRMask:
OS << "<mask: " << getMSRMask() << ">";
break;
- case Immediate:
+ case k_Immediate:
getImm()->print(OS);
break;
- case MemBarrierOpt:
+ case k_MemBarrierOpt:
OS << "<ARM_MB::" << MemBOptToString(getMemBarrierOpt()) << ">";
break;
- case Memory:
+ case k_Memory:
OS << "<memory "
- << " base:" << Mem.BaseRegNum;
+ << " base:" << Memory.BaseRegNum;
OS << ">";
break;
- case PostIndexRegister:
+ case k_PostIndexRegister:
OS << "post-idx register " << (PostIdxReg.isAdd ? "" : "-")
<< PostIdxReg.RegNum;
if (PostIdxReg.ShiftTy != ARM_AM::no_shift)
<< PostIdxReg.ShiftImm;
OS << ">";
break;
- case ProcIFlags: {
+ case k_ProcIFlags: {
OS << "<ARM_PROC::";
unsigned IFlags = getProcIFlags();
for (int i=2; i >= 0; --i)
OS << ">";
break;
}
- case Register:
+ case k_Register:
OS << "<register " << getReg() << ">";
break;
- case ShifterImmediate:
+ case k_ShifterImmediate:
OS << "<shift " << (ShifterImm.isASR ? "asr" : "lsl")
<< " #" << ShifterImm.Imm << ">";
break;
- case ShiftedRegister:
+ case k_ShiftedRegister:
OS << "<so_reg_reg "
<< RegShiftedReg.SrcReg
<< ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(RegShiftedReg.ShiftImm))
<< ARM_AM::getSORegOffset(RegShiftedReg.ShiftImm)
<< ">";
break;
- case ShiftedImmediate:
+ case k_ShiftedImmediate:
OS << "<so_reg_imm "
<< RegShiftedImm.SrcReg
<< ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(RegShiftedImm.ShiftImm))
<< ", " << ARM_AM::getSORegOffset(RegShiftedImm.ShiftImm)
<< ">";
break;
- case RotateImmediate:
+ case k_RotateImmediate:
OS << "<ror " << " #" << (RotImm.Imm * 8) << ">";
break;
- case BitfieldDescriptor:
+ case k_BitfieldDescriptor:
OS << "<bitfield " << "lsb: " << Bitfield.LSB
<< ", width: " << Bitfield.Width << ">";
break;
- case RegisterList:
- case DPRRegisterList:
- case SPRRegisterList: {
+ case k_RegisterList:
+ case k_DPRRegisterList:
+ case k_SPRRegisterList: {
OS << "<register_list ";
const SmallVectorImpl<unsigned> &RegList = getRegList();
OS << ">";
break;
}
- case Token:
+ case k_VectorList:
+ OS << "<vector_list " << VectorList.Count << " * "
+ << VectorList.RegNum << ">";
+ break;
+ case k_Token:
OS << "'" << getToken() << "'";
break;
+ case k_VectorIndex:
+ OS << "<vectorindex " << getVectorIndex() << ">";
+ break;
}
}
// FIXME: Validate register for the current architecture; we have to do
// validation later, so maybe there is no need for this here.
- std::string upperCase = Tok.getString().str();
- std::string lowerCase = LowercaseString(upperCase);
+ std::string lowerCase = Tok.getString().lower();
unsigned RegNum = MatchRegisterName(lowerCase);
if (!RegNum) {
RegNum = StringSwitch<unsigned>(lowerCase)
if (!RegNum) return -1;
Parser.Lex(); // Eat identifier token.
+
return RegNum;
}
const AsmToken &Tok = Parser.getTok();
assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
- std::string upperCase = Tok.getString().str();
- std::string lowerCase = LowercaseString(upperCase);
+ std::string lowerCase = Tok.getString().lower();
ARM_AM::ShiftOpc ShiftTy = StringSwitch<ARM_AM::ShiftOpc>(lowerCase)
.Case("lsl", ARM_AM::lsl)
.Case("lsr", ARM_AM::lsr)
Operands.push_back(ARMOperand::CreateToken(ExclaimTok.getString(),
ExclaimTok.getLoc()));
Parser.Lex(); // Eat exclaim token
+ return false;
+ }
+
+ // Also check for an index operand. This is only legal for vector registers,
+ // but that'll get caught OK in operand matching, so we don't need to
+ // explicitly filter everything else out here.
+ if (Parser.getTok().is(AsmToken::LBrac)) {
+ SMLoc SIdx = Parser.getTok().getLoc();
+ Parser.Lex(); // Eat left bracket token.
+
+ const MCExpr *ImmVal;
+ if (getParser().ParseExpression(ImmVal))
+ return MatchOperand_ParseFail;
+ const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(ImmVal);
+ if (!MCE) {
+ TokError("immediate value expected for vector index");
+ return MatchOperand_ParseFail;
+ }
+
+ SMLoc E = Parser.getTok().getLoc();
+ if (Parser.getTok().isNot(AsmToken::RBrac)) {
+ Error(E, "']' expected");
+ return MatchOperand_ParseFail;
+ }
+
+ Parser.Lex(); // Eat right bracket token.
+
+ Operands.push_back(ARMOperand::CreateVectorIndex(MCE->getValue(),
+ SIdx, E,
+ getContext()));
}
return false;
parseCoprocNumOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
SMLoc S = Parser.getTok().getLoc();
const AsmToken &Tok = Parser.getTok();
- assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
+ if (Tok.isNot(AsmToken::Identifier))
+ return MatchOperand_NoMatch;
int Num = MatchCoprocessorOperandName(Tok.getString(), 'p');
if (Num == -1)
parseCoprocRegOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
SMLoc S = Parser.getTok().getLoc();
const AsmToken &Tok = Parser.getTok();
- assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
+ if (Tok.isNot(AsmToken::Identifier))
+ return MatchOperand_NoMatch;
int Reg = MatchCoprocessorOperandName(Tok.getString(), 'c');
if (Reg == -1)
return MatchOperand_Success;
}
+/// parseCoprocOptionOperand - Try to parse an coprocessor option operand.
+/// coproc_option : '{' imm0_255 '}'
+ARMAsmParser::OperandMatchResultTy ARMAsmParser::
+parseCoprocOptionOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ SMLoc S = Parser.getTok().getLoc();
+
+ // If this isn't a '{', this isn't a coprocessor immediate operand.
+ if (Parser.getTok().isNot(AsmToken::LCurly))
+ return MatchOperand_NoMatch;
+ Parser.Lex(); // Eat the '{'
+
+ const MCExpr *Expr;
+ SMLoc Loc = Parser.getTok().getLoc();
+ if (getParser().ParseExpression(Expr)) {
+ Error(Loc, "illegal expression");
+ return MatchOperand_ParseFail;
+ }
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
+ if (!CE || CE->getValue() < 0 || CE->getValue() > 255) {
+ Error(Loc, "coprocessor option must be an immediate in range [0, 255]");
+ return MatchOperand_ParseFail;
+ }
+ int Val = CE->getValue();
+
+ // Check for and consume the closing '}'
+ if (Parser.getTok().isNot(AsmToken::RCurly))
+ return MatchOperand_ParseFail;
+ SMLoc E = Parser.getTok().getLoc();
+ Parser.Lex(); // Eat the '}'
+
+ Operands.push_back(ARMOperand::CreateCoprocOption(Val, S, E));
+ return MatchOperand_Success;
+}
+
// For register list parsing, we need to map from raw GPR register numbering
// to the enumeration values. The enumeration values aren't sorted by
// register number due to our using "sp", "lr" and "pc" as canonical names.
}
}
+// Return the low-subreg of a given Q register.
+static unsigned getDRegFromQReg(unsigned QReg) {
+ switch (QReg) {
+ default: llvm_unreachable("expected a Q register!");
+ case ARM::Q0: return ARM::D0;
+ case ARM::Q1: return ARM::D2;
+ case ARM::Q2: return ARM::D4;
+ case ARM::Q3: return ARM::D6;
+ case ARM::Q4: return ARM::D8;
+ case ARM::Q5: return ARM::D10;
+ case ARM::Q6: return ARM::D12;
+ case ARM::Q7: return ARM::D14;
+ case ARM::Q8: return ARM::D16;
+ case ARM::Q9: return ARM::D19;
+ case ARM::Q10: return ARM::D20;
+ case ARM::Q11: return ARM::D22;
+ case ARM::Q12: return ARM::D24;
+ case ARM::Q13: return ARM::D26;
+ case ARM::Q14: return ARM::D28;
+ case ARM::Q15: return ARM::D30;
+ }
+}
+
/// Parse a register list.
bool ARMAsmParser::
parseRegisterList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
if (Reg == -1)
return Error(RegLoc, "register expected");
- MCRegisterClass *RC;
+ // The reglist instructions have at most 16 registers, so reserve
+ // space for that many.
+ SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
+
+ // Allow Q regs and just interpret them as the two D sub-registers.
+ if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
+ Reg = getDRegFromQReg(Reg);
+ Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
+ ++Reg;
+ }
+ const MCRegisterClass *RC;
if (ARMMCRegisterClasses[ARM::GPRRegClassID].contains(Reg))
RC = &ARMMCRegisterClasses[ARM::GPRRegClassID];
else if (ARMMCRegisterClasses[ARM::DPRRegClassID].contains(Reg))
else
return Error(RegLoc, "invalid register in register list");
- // The reglist instructions have at most 16 registers, so reserve
- // space for that many.
- SmallVector<std::pair<unsigned, SMLoc>, 16> Registers;
- // Store the first register.
+ // Store the register.
Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
// This starts immediately after the first register token in the list,
int EndReg = tryParseRegister();
if (EndReg == -1)
return Error(EndLoc, "register expected");
+ // Allow Q regs and just interpret them as the two D sub-registers.
+ if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(EndReg))
+ EndReg = getDRegFromQReg(EndReg) + 1;
// If the register is the same as the start reg, there's nothing
// more to do.
if (Reg == EndReg)
Reg = tryParseRegister();
if (Reg == -1)
return Error(RegLoc, "register expected");
+ // Allow Q regs and just interpret them as the two D sub-registers.
+ bool isQReg = false;
+ if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
+ Reg = getDRegFromQReg(Reg);
+ isQReg = true;
+ }
// The register must be in the same register class as the first.
if (!RC->contains(Reg))
return Error(RegLoc, "invalid register in register list");
Reg != OldReg + 1)
return Error(RegLoc, "non-contiguous register range");
Registers.push_back(std::pair<unsigned, SMLoc>(Reg, RegLoc));
+ if (isQReg)
+ Registers.push_back(std::pair<unsigned, SMLoc>(++Reg, RegLoc));
+ }
+
+ SMLoc E = Parser.getTok().getLoc();
+ if (Parser.getTok().isNot(AsmToken::RCurly))
+ return Error(E, "'}' expected");
+ Parser.Lex(); // Eat '}' token.
+
+ Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
+ return false;
+}
+
+// parse a vector register list
+ARMAsmParser::OperandMatchResultTy ARMAsmParser::
+parseVectorList(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ if(Parser.getTok().isNot(AsmToken::LCurly))
+ return MatchOperand_NoMatch;
+
+ SMLoc S = Parser.getTok().getLoc();
+ Parser.Lex(); // Eat '{' token.
+ SMLoc RegLoc = Parser.getTok().getLoc();
+
+ int Reg = tryParseRegister();
+ if (Reg == -1) {
+ Error(RegLoc, "register expected");
+ return MatchOperand_ParseFail;
+ }
+ unsigned Count = 1;
+ unsigned FirstReg = Reg;
+ // The list is of D registers, but we also allow Q regs and just interpret
+ // them as the two D sub-registers.
+ if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
+ FirstReg = Reg = getDRegFromQReg(Reg);
+ ++Reg;
+ ++Count;
+ }
+
+ while (Parser.getTok().is(AsmToken::Comma)) {
+ Parser.Lex(); // Eat the comma.
+ RegLoc = Parser.getTok().getLoc();
+ int OldReg = Reg;
+ Reg = tryParseRegister();
+ if (Reg == -1) {
+ Error(RegLoc, "register expected");
+ return MatchOperand_ParseFail;
+ }
+ // vector register lists must be contiguous.
+ // It's OK to use the enumeration values directly here rather, as the
+ // VFP register classes have the enum sorted properly.
+ //
+ // The list is of D registers, but we also allow Q regs and just interpret
+ // them as the two D sub-registers.
+ if (ARMMCRegisterClasses[ARM::QPRRegClassID].contains(Reg)) {
+ Reg = getDRegFromQReg(Reg);
+ if (Reg != OldReg + 1) {
+ Error(RegLoc, "non-contiguous register range");
+ return MatchOperand_ParseFail;
+ }
+ ++Reg;
+ Count += 2;
+ continue;
+ }
+ // Normal D register. Just check that it's contiguous and keep going.
+ if (Reg != OldReg + 1) {
+ Error(RegLoc, "non-contiguous register range");
+ return MatchOperand_ParseFail;
+ }
+ ++Count;
}
SMLoc E = Parser.getTok().getLoc();
- if (Parser.getTok().isNot(AsmToken::RCurly))
- return Error(E, "'}' expected");
+ if (Parser.getTok().isNot(AsmToken::RCurly)) {
+ Error(E, "'}' expected");
+ return MatchOperand_ParseFail;
+ }
Parser.Lex(); // Eat '}' token.
- Operands.push_back(ARMOperand::CreateRegList(Registers, S, E));
- return false;
+ Operands.push_back(ARMOperand::CreateVectorList(FirstReg, Count, S, E));
+ return MatchOperand_Success;
}
/// parseMemBarrierOptOperand - Try to parse DSB/DMB data barrier options.
assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
StringRef IFlagsStr = Tok.getString();
+ // An iflags string of "none" is interpreted to mean that none of the AIF
+ // bits are set. Not a terribly useful instruction, but a valid encoding.
unsigned IFlags = 0;
- for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
- unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
- .Case("a", ARM_PROC::A)
- .Case("i", ARM_PROC::I)
- .Case("f", ARM_PROC::F)
- .Default(~0U);
-
- // If some specific iflag is already set, it means that some letter is
- // present more than once, this is not acceptable.
- if (Flag == ~0U || (IFlags & Flag))
- return MatchOperand_NoMatch;
+ if (IFlagsStr != "none") {
+ for (int i = 0, e = IFlagsStr.size(); i != e; ++i) {
+ unsigned Flag = StringSwitch<unsigned>(IFlagsStr.substr(i, 1))
+ .Case("a", ARM_PROC::A)
+ .Case("i", ARM_PROC::I)
+ .Case("f", ARM_PROC::F)
+ .Default(~0U);
+
+ // If some specific iflag is already set, it means that some letter is
+ // present more than once, this is not acceptable.
+ if (Flag == ~0U || (IFlags & Flag))
+ return MatchOperand_NoMatch;
- IFlags |= Flag;
+ IFlags |= Flag;
+ }
}
Parser.Lex(); // Eat identifier token.
assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
StringRef Mask = Tok.getString();
+ if (isMClass()) {
+ // See ARMv6-M 10.1.1
+ unsigned FlagsVal = StringSwitch<unsigned>(Mask)
+ .Case("apsr", 0)
+ .Case("iapsr", 1)
+ .Case("eapsr", 2)
+ .Case("xpsr", 3)
+ .Case("ipsr", 5)
+ .Case("epsr", 6)
+ .Case("iepsr", 7)
+ .Case("msp", 8)
+ .Case("psp", 9)
+ .Case("primask", 16)
+ .Case("basepri", 17)
+ .Case("basepri_max", 18)
+ .Case("faultmask", 19)
+ .Case("control", 20)
+ .Default(~0U);
+
+ if (FlagsVal == ~0U)
+ return MatchOperand_NoMatch;
+
+ if (!hasV7Ops() && FlagsVal >= 17 && FlagsVal <= 19)
+ // basepri, basepri_max and faultmask only valid for V7m.
+ return MatchOperand_NoMatch;
+
+ Parser.Lex(); // Eat identifier token.
+ Operands.push_back(ARMOperand::CreateMSRMask(FlagsVal, S));
+ return MatchOperand_Success;
+ }
+
// Split spec_reg from flag, example: CPSR_sxf => "CPSR" and "sxf"
size_t Start = 0, Next = Mask.find('_');
StringRef Flags = "";
- std::string SpecReg = LowercaseString(Mask.slice(Start, Next));
+ std::string SpecReg = Mask.slice(Start, Next).lower();
if (Next != StringRef::npos)
Flags = Mask.slice(Next+1, Mask.size());
} else // No match for special register.
return MatchOperand_NoMatch;
- // Special register without flags are equivalent to "fc" flags.
- if (!FlagsVal)
- FlagsVal = 0x9;
+ // Special register without flags is NOT equivalent to "fc" flags.
+ // NOTE: This is a divergence from gas' behavior. Uncommenting the following
+ // two lines would enable gas compatibility at the expense of breaking
+ // round-tripping.
+ //
+ // if (!FlagsVal)
+ // FlagsVal = 0x9;
// Bit 4: Special Reg (cpsr, apsr => 0; spsr => 1)
if (SpecReg == "spsr")
return MatchOperand_ParseFail;
}
StringRef ShiftName = Tok.getString();
- std::string LowerOp = LowercaseString(Op);
- std::string UpperOp = UppercaseString(Op);
+ std::string LowerOp = Op.lower();
+ std::string UpperOp = Op.upper();
if (ShiftName != LowerOp && ShiftName != UpperOp) {
Error(Parser.getTok().getLoc(), Op + " operand expected.");
return MatchOperand_ParseFail;
Error(E, "'asr' shift amount must be in range [1,32]");
return MatchOperand_ParseFail;
}
- // asr #32 encoded as asr #0.
+ // asr #32 encoded as asr #0, but is not allowed in Thumb2 mode.
+ if (isThumb() && Val == 32) {
+ Error(E, "'asr #32' shift amount not allowed in Thumb mode");
+ return MatchOperand_ParseFail;
+ }
if (Val == 32) Val = 0;
} else {
// Shift amount must be in [1,32]
parseRotImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
const AsmToken &Tok = Parser.getTok();
SMLoc S = Tok.getLoc();
- if (Tok.isNot(AsmToken::Identifier)) {
- Error(S, "rotate operator 'ror' expected");
- return MatchOperand_ParseFail;
- }
+ if (Tok.isNot(AsmToken::Identifier))
+ return MatchOperand_NoMatch;
StringRef ShiftName = Tok.getString();
- if (ShiftName != "ror" && ShiftName != "ROR") {
- Error(S, "rotate operator 'ror' expected");
- return MatchOperand_ParseFail;
- }
+ if (ShiftName != "ror" && ShiftName != "ROR")
+ return MatchOperand_NoMatch;
Parser.Lex(); // Eat the operator.
// A '#' and a rotate amount.
return true;
}
+/// cvtStWriteBackRegT2AddrModeImm8 - Convert parsed operands to MCInst.
+/// Needed here because the Asm Gen Matcher can't handle properly tied operands
+/// when they refer multiple MIOperands inside a single one.
+bool ARMAsmParser::
+cvtStWriteBackRegT2AddrModeImm8(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ // Create a writeback register dummy placeholder.
+ Inst.addOperand(MCOperand::CreateImm(0));
+ ((ARMOperand*)Operands[2])->addRegOperands(Inst, 1);
+ ((ARMOperand*)Operands[3])->addMemImm8OffsetOperands(Inst, 2);
+ ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
+ return true;
+}
+
/// cvtLdWriteBackRegAddrMode2 - Convert parsed operands to MCInst.
/// Needed here because the Asm Gen Matcher can't handle properly tied operands
/// when they refer multiple MIOperands inside a single one.
}
((ARMOperand*)Operands[3])->addRegOperands(Inst, 1);
((ARMOperand*)Operands[1])->addCCOutOperands(Inst, 1);
- ((ARMOperand*)Operands[4])->addRegOperands(Inst, 1);
- // If we have a three-operand form, use that, else the second source operand
- // is just the destination operand again.
- if (Operands.size() == 6)
- ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
- else
- Inst.addOperand(Inst.getOperand(0));
+ // If we have a three-operand form, make sure to set Rn to be the operand
+ // that isn't the same as Rd.
+ unsigned RegOp = 4;
+ if (Operands.size() == 6 &&
+ ((ARMOperand*)Operands[4])->getReg() ==
+ ((ARMOperand*)Operands[3])->getReg())
+ RegOp = 5;
+ ((ARMOperand*)Operands[RegOp])->addRegOperands(Inst, 1);
+ Inst.addOperand(Inst.getOperand(0));
((ARMOperand*)Operands[2])->addCondCodeOperands(Inst, 2);
return true;
}
+bool ARMAsmParser::
+cvtVLDwbFixed(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ // Vd
+ ((ARMOperand*)Operands[3])->addVecListTwoDOperands(Inst, 1);
+ // Create a writeback register dummy placeholder.
+ Inst.addOperand(MCOperand::CreateImm(0));
+ // Vn
+ ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
+ // pred
+ ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
+ return true;
+}
+
+bool ARMAsmParser::
+cvtVLDwbRegister(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ // Vd
+ ((ARMOperand*)Operands[3])->addVecListTwoDOperands(Inst, 1);
+ // Create a writeback register dummy placeholder.
+ Inst.addOperand(MCOperand::CreateImm(0));
+ // Vn
+ ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
+ // Vm
+ ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
+ // pred
+ ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
+ return true;
+}
+
+bool ARMAsmParser::
+cvtVSTwbFixed(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ // Create a writeback register dummy placeholder.
+ Inst.addOperand(MCOperand::CreateImm(0));
+ // Vn
+ ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
+ // Vt
+ ((ARMOperand*)Operands[3])->addVecListTwoDOperands(Inst, 1);
+ // pred
+ ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
+ return true;
+}
+
+bool ARMAsmParser::
+cvtVSTwbRegister(MCInst &Inst, unsigned Opcode,
+ const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ // Create a writeback register dummy placeholder.
+ Inst.addOperand(MCOperand::CreateImm(0));
+ // Vn
+ ((ARMOperand*)Operands[4])->addAlignedMemoryOperands(Inst, 2);
+ // Vm
+ ((ARMOperand*)Operands[5])->addRegOperands(Inst, 1);
+ // Vt
+ ((ARMOperand*)Operands[3])->addVecListTwoDOperands(Inst, 1);
+ // pred
+ ((ARMOperand*)Operands[1])->addCondCodeOperands(Inst, 2);
+ return true;
+}
+
/// Parse an ARM memory expression, return false if successful else return true
/// or an error. The first token must be a '[' when called.
bool ARMAsmParser::
Parser.Lex(); // Eat right bracket token.
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0, ARM_AM::no_shift,
- 0, false, S, E));
+ 0, 0, false, S, E));
+
+ // If there's a pre-indexing writeback marker, '!', just add it as a token
+ // operand. It's rather odd, but syntactically valid.
+ if (Parser.getTok().is(AsmToken::Exclaim)) {
+ Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
+ Parser.Lex(); // Eat the '!'.
+ }
return false;
}
assert(Tok.is(AsmToken::Comma) && "Lost comma in memory operand?!");
Parser.Lex(); // Eat the comma.
- // If we have a '#' it's an immediate offset, else assume it's a register
+ // If we have a ':', it's an alignment specifier.
+ if (Parser.getTok().is(AsmToken::Colon)) {
+ Parser.Lex(); // Eat the ':'.
+ E = Parser.getTok().getLoc();
+
+ const MCExpr *Expr;
+ if (getParser().ParseExpression(Expr))
+ return true;
+
+ // The expression has to be a constant. Memory references with relocations
+ // don't come through here, as they use the <label> forms of the relevant
+ // instructions.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Expr);
+ if (!CE)
+ return Error (E, "constant expression expected");
+
+ unsigned Align = 0;
+ switch (CE->getValue()) {
+ default:
+ return Error(E, "alignment specifier must be 64, 128, or 256 bits");
+ case 64: Align = 8; break;
+ case 128: Align = 16; break;
+ case 256: Align = 32; break;
+ }
+
+ // Now we should have the closing ']'
+ E = Parser.getTok().getLoc();
+ if (Parser.getTok().isNot(AsmToken::RBrac))
+ return Error(E, "']' expected");
+ Parser.Lex(); // Eat right bracket token.
+
+ // Don't worry about range checking the value here. That's handled by
+ // the is*() predicates.
+ Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, 0,
+ ARM_AM::no_shift, 0, Align,
+ false, S, E));
+
+ // If there's a pre-indexing writeback marker, '!', just add it as a token
+ // operand.
+ if (Parser.getTok().is(AsmToken::Exclaim)) {
+ Operands.push_back(ARMOperand::CreateToken("!",Parser.getTok().getLoc()));
+ Parser.Lex(); // Eat the '!'.
+ }
+
+ return false;
+ }
+
+ // If we have a '#', it's an immediate offset, else assume it's a register
// offset.
if (Parser.getTok().is(AsmToken::Hash)) {
Parser.Lex(); // Eat the '#'.
// Don't worry about range checking the value here. That's handled by
// the is*() predicates.
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, CE, 0,
- ARM_AM::no_shift, 0, false, S,E));
+ ARM_AM::no_shift, 0, 0,
+ false, S, E));
// If there's a pre-indexing writeback marker, '!', just add it as a token
// operand.
Parser.Lex(); // Eat right bracket token.
Operands.push_back(ARMOperand::CreateMem(BaseRegNum, 0, OffsetRegNum,
- ShiftType, ShiftImm, isNegative,
+ ShiftType, ShiftImm, 0, isNegative,
S, E));
// If there's a pre-indexing writeback marker, '!', just add it as a token
return false;
}
+/// parseFPImm - A floating point immediate expression operand.
+ARMAsmParser::OperandMatchResultTy ARMAsmParser::
+parseFPImm(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
+ SMLoc S = Parser.getTok().getLoc();
+
+ if (Parser.getTok().isNot(AsmToken::Hash))
+ return MatchOperand_NoMatch;
+
+ // Disambiguate the VMOV forms that can accept an FP immediate.
+ // vmov.f32 <sreg>, #imm
+ // vmov.f64 <dreg>, #imm
+ // vmov.f32 <dreg>, #imm @ vector f32x2
+ // vmov.f32 <qreg>, #imm @ vector f32x4
+ //
+ // There are also the NEON VMOV instructions which expect an
+ // integer constant. Make sure we don't try to parse an FPImm
+ // for these:
+ // vmov.i{8|16|32|64} <dreg|qreg>, #imm
+ ARMOperand *TyOp = static_cast<ARMOperand*>(Operands[2]);
+ if (!TyOp->isToken() || (TyOp->getToken() != ".f32" &&
+ TyOp->getToken() != ".f64"))
+ return MatchOperand_NoMatch;
+
+ Parser.Lex(); // Eat the '#'.
+
+ // Handle negation, as that still comes through as a separate token.
+ bool isNegative = false;
+ if (Parser.getTok().is(AsmToken::Minus)) {
+ isNegative = true;
+ Parser.Lex();
+ }
+ const AsmToken &Tok = Parser.getTok();
+ if (Tok.is(AsmToken::Real)) {
+ APFloat RealVal(APFloat::IEEEdouble, Tok.getString());
+ uint64_t IntVal = RealVal.bitcastToAPInt().getZExtValue();
+ // If we had a '-' in front, toggle the sign bit.
+ IntVal ^= (uint64_t)isNegative << 63;
+ int Val = ARM_AM::getFP64Imm(APInt(64, IntVal));
+ Parser.Lex(); // Eat the token.
+ if (Val == -1) {
+ TokError("floating point value out of range");
+ return MatchOperand_ParseFail;
+ }
+ Operands.push_back(ARMOperand::CreateFPImm(Val, S, getContext()));
+ return MatchOperand_Success;
+ }
+ if (Tok.is(AsmToken::Integer)) {
+ int64_t Val = Tok.getIntVal();
+ Parser.Lex(); // Eat the token.
+ if (Val > 255 || Val < 0) {
+ TokError("encoded floating point value out of range");
+ return MatchOperand_ParseFail;
+ }
+ Operands.push_back(ARMOperand::CreateFPImm(Val, S, getContext()));
+ return MatchOperand_Success;
+ }
+
+ TokError("invalid floating point immediate");
+ return MatchOperand_ParseFail;
+}
/// Parse a arm instruction operand. For now this parses the operand regardless
/// of the mnemonic.
bool ARMAsmParser::parseOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands,
Error(Parser.getTok().getLoc(), "unexpected token in operand");
return true;
case AsmToken::Identifier: {
+ // If this is VMRS, check for the apsr_nzcv operand.
if (!tryParseRegisterWithWriteBack(Operands))
return false;
int Res = tryParseShiftRegister(Operands);
return false;
else if (Res == -1) // irrecoverable error
return true;
+ if (Mnemonic == "vmrs" && Parser.getTok().getString() == "apsr_nzcv") {
+ S = Parser.getTok().getLoc();
+ Parser.Lex();
+ Operands.push_back(ARMOperand::CreateToken("apsr_nzcv", S));
+ return false;
+ }
// Fall though for the Identifier case that is not a register or a
// special name.
}
+ case AsmToken::LParen: // parenthesized expressions like (_strcmp-4)
case AsmToken::Integer: // things like 1f and 2b as a branch targets
+ case AsmToken::String: // quoted label names.
case AsmToken::Dot: { // . as a branch target
// This was not a register so parse other operands that start with an
// identifier (like labels) as expressions and create them as immediates.
if (getParser().ParseExpression(ImmVal))
return true;
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(ImmVal);
- if (!CE) {
- Error(S, "constant expression expected");
- return MatchOperand_ParseFail;
+ if (CE) {
+ int32_t Val = CE->getValue();
+ if (isNegative && Val == 0)
+ ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
}
- int32_t Val = CE->getValue();
- if (isNegative && Val == 0)
- ImmVal = MCConstantExpr::Create(INT32_MIN, getContext());
E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
Operands.push_back(ARMOperand::CreateImm(ImmVal, S, E));
return false;
return false;
}
-const MCExpr *
-ARMAsmParser::applyPrefixToExpr(const MCExpr *E,
- MCSymbolRefExpr::VariantKind Variant) {
- // Recurse over the given expression, rebuilding it to apply the given variant
- // to the leftmost symbol.
- if (Variant == MCSymbolRefExpr::VK_None)
- return E;
-
- switch (E->getKind()) {
- case MCExpr::Target:
- llvm_unreachable("Can't handle target expr yet");
- case MCExpr::Constant:
- llvm_unreachable("Can't handle lower16/upper16 of constant yet");
-
- case MCExpr::SymbolRef: {
- const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
-
- if (SRE->getKind() != MCSymbolRefExpr::VK_None)
- return 0;
-
- return MCSymbolRefExpr::Create(&SRE->getSymbol(), Variant, getContext());
- }
-
- case MCExpr::Unary:
- llvm_unreachable("Can't handle unary expressions yet");
-
- case MCExpr::Binary: {
- const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
- const MCExpr *LHS = applyPrefixToExpr(BE->getLHS(), Variant);
- const MCExpr *RHS = BE->getRHS();
- if (!LHS)
- return 0;
-
- return MCBinaryExpr::Create(BE->getOpcode(), LHS, RHS, getContext());
- }
- }
-
- assert(0 && "Invalid expression kind!");
- return 0;
-}
-
/// \brief Given a mnemonic, split out possible predication code and carry
/// setting letters to form a canonical mnemonic and flags.
//
bool &CanAcceptPredicationCode) {
if (Mnemonic == "and" || Mnemonic == "lsl" || Mnemonic == "lsr" ||
Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
- Mnemonic == "smull" || Mnemonic == "add" || Mnemonic == "adc" ||
+ Mnemonic == "add" || Mnemonic == "adc" ||
Mnemonic == "mul" || Mnemonic == "bic" || Mnemonic == "asr" ||
- Mnemonic == "umlal" || Mnemonic == "orr" || Mnemonic == "mvn" ||
+ Mnemonic == "orr" || Mnemonic == "mvn" ||
Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
- Mnemonic == "sbc" || Mnemonic == "umull" || Mnemonic == "eor" ||
- Mnemonic == "neg" ||
- (!isThumb() && (Mnemonic == "mov" || Mnemonic == "mla" ||
- Mnemonic == "smlal"))) {
+ Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
+ (!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
+ Mnemonic == "mla" || Mnemonic == "smlal" ||
+ Mnemonic == "umlal" || Mnemonic == "umull"))) {
CanAcceptCarrySet = true;
- } else {
+ } else
CanAcceptCarrySet = false;
- }
if (Mnemonic == "cbnz" || Mnemonic == "setend" || Mnemonic == "dmb" ||
Mnemonic == "cps" || Mnemonic == "mcr2" || Mnemonic == "it" ||
Mnemonic == "dsb" || Mnemonic == "isb" || Mnemonic == "setend" ||
(Mnemonic == "clrex" && !isThumb()) ||
(Mnemonic == "nop" && isThumbOne()) ||
- ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw") &&
- !isThumb()) ||
+ ((Mnemonic == "pld" || Mnemonic == "pli" || Mnemonic == "pldw" ||
+ Mnemonic == "ldc2" || Mnemonic == "ldc2l" ||
+ Mnemonic == "stc2" || Mnemonic == "stc2l") && !isThumb()) ||
((Mnemonic.startswith("rfe") || Mnemonic.startswith("srs")) &&
!isThumb()) ||
Mnemonic.startswith("cps") || (Mnemonic == "movs" && isThumbOne())) {
CanAcceptPredicationCode = false;
- } else {
+ } else
CanAcceptPredicationCode = true;
- }
- if (isThumb())
+ if (isThumb()) {
if (Mnemonic == "bkpt" || Mnemonic == "mcr" || Mnemonic == "mcrr" ||
Mnemonic == "mrc" || Mnemonic == "mrrc" || Mnemonic == "cdp")
CanAcceptPredicationCode = false;
+ }
}
bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
// when it's an ADD Rdm, SP, {Rdm|#imm0_255} instruction. We do
// have to check the immediate range here since Thumb2 has a variant
// that can handle a different range and has a cc_out operand.
- if (isThumb() && Mnemonic == "add" && Operands.size() == 6 &&
+ if (((isThumb() && Mnemonic == "add") ||
+ (isThumbTwo() && Mnemonic == "sub")) &&
+ Operands.size() == 6 &&
static_cast<ARMOperand*>(Operands[3])->isReg() &&
static_cast<ARMOperand*>(Operands[4])->isReg() &&
static_cast<ARMOperand*>(Operands[4])->getReg() == ARM::SP &&
(static_cast<ARMOperand*>(Operands[5])->isReg() ||
static_cast<ARMOperand*>(Operands[5])->isImm0_1020s4()))
return true;
- // For Thumb2, add immediate does not have a cc_out operand for the
- // imm0_4096 variant. That's the least-preferred variant when
+ // For Thumb2, add/sub immediate does not have a cc_out operand for the
+ // imm0_4095 variant. That's the least-preferred variant when
// selecting via the generic "add" mnemonic, so to know that we
// should remove the cc_out operand, we have to explicitly check that
// it's not one of the other variants. Ugh.
- if (isThumbTwo() && Mnemonic == "add" && Operands.size() == 6 &&
+ if (isThumbTwo() && (Mnemonic == "add" || Mnemonic == "sub") &&
+ Operands.size() == 6 &&
static_cast<ARMOperand*>(Operands[3])->isReg() &&
static_cast<ARMOperand*>(Operands[4])->isReg() &&
static_cast<ARMOperand*>(Operands[5])->isImm()) {
Next = Name.find('.', Start + 1);
StringRef ExtraToken = Name.slice(Start, Next);
- // For now, we're only parsing Thumb1 (for the most part), so
- // just ignore ".n" qualifiers. We'll use them to restrict
- // matching when we do Thumb2.
if (ExtraToken != ".n") {
SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
}
if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ SMLoc Loc = getLexer().getLoc();
Parser.EatToEndOfStatement();
- return TokError("unexpected token in argument list");
+ return Error(Loc, "unexpected token in argument list");
}
Parser.Lex(); // Consume the EndOfStatement
// ARM mode 'blx' need special handling, as the register operand version
// is predicable, but the label operand version is not. So, we can't rely
// on the Mnemonic based checking to correctly figure out when to put
- // a CondCode operand in the list. If we're trying to match the label
- // version, remove the CondCode operand here.
+ // a k_CondCode operand in the list. If we're trying to match the label
+ // version, remove the k_CondCode operand here.
if (!isThumb() && Mnemonic == "blx" && Operands.size() == 3 &&
static_cast<ARMOperand*>(Operands[2])->isImm()) {
ARMOperand *Op = static_cast<ARMOperand*>(Operands[1]);
delete Op;
}
}
+ // VCMP{E} does the same thing, but with a different operand count.
+ if ((Mnemonic == "vcmp" || Mnemonic == "vcmpe") && Operands.size() == 5 &&
+ static_cast<ARMOperand*>(Operands[4])->isImm()) {
+ ARMOperand *Op = static_cast<ARMOperand*>(Operands[4]);
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Op->getImm());
+ if (CE && CE->getValue() == 0) {
+ Operands.erase(Operands.begin() + 4);
+ Operands.push_back(ARMOperand::CreateToken("#0", Op->getStartLoc()));
+ delete Op;
+ }
+ }
// Similarly, the Thumb1 "RSB" instruction has a literal "#0" on the
// end. Convert it to a token here.
if (Mnemonic == "rsb" && isThumb() && Operands.size() == 6 &&
// the ARMInsts array) instead. Getting that here requires awkward
// API changes, though. Better way?
namespace llvm {
-extern MCInstrDesc ARMInsts[];
+extern const MCInstrDesc ARMInsts[];
}
-static MCInstrDesc &getInstDesc(unsigned Opcode) {
+static const MCInstrDesc &getInstDesc(unsigned Opcode) {
return ARMInsts[Opcode];
}
bool ARMAsmParser::
validateInstruction(MCInst &Inst,
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
- MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
+ const MCInstrDesc &MCID = getInstDesc(Inst.getOpcode());
SMLoc Loc = Operands[0]->getStartLoc();
// Check the IT block state first.
// NOTE: In Thumb mode, the BKPT instruction has the interesting property of
"in register list");
break;
}
+ // Like for ldm/stm, push and pop have hi-reg handling version in Thumb2,
+ // so only issue a diagnostic for thumb1. The instructions will be
+ // switched to the t2 encodings in processInstruction() if necessary.
case ARM::tPOP: {
bool listContainsBase;
- if (checkLowRegisterList(Inst, 3, 0, ARM::PC, listContainsBase))
+ if (checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase) &&
+ !isThumbTwo())
return Error(Operands[2]->getStartLoc(),
"registers must be in range r0-r7 or pc");
break;
}
case ARM::tPUSH: {
bool listContainsBase;
- if (checkLowRegisterList(Inst, 3, 0, ARM::LR, listContainsBase))
+ if (checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase) &&
+ !isThumbTwo())
return Error(Operands[2]->getStartLoc(),
"registers must be in range r0-r7 or lr");
break;
}
case ARM::tSTMIA_UPD: {
bool listContainsBase;
- if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase))
+ if (checkLowRegisterList(Inst, 4, 0, 0, listContainsBase) && !isThumbTwo())
return Error(Operands[4]->getStartLoc(),
"registers must be in range r0-r7");
break;
return false;
}
-void ARMAsmParser::
+bool ARMAsmParser::
processInstruction(MCInst &Inst,
const SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
switch (Inst.getOpcode()) {
+ // Handle the MOV complex aliases.
+ case ARM::ASRi:
+ case ARM::LSRi:
+ case ARM::LSLi:
+ case ARM::RORi: {
+ ARM_AM::ShiftOpc ShiftTy;
+ unsigned Amt = Inst.getOperand(2).getImm();
+ switch(Inst.getOpcode()) {
+ default: llvm_unreachable("unexpected opcode!");
+ case ARM::ASRi: ShiftTy = ARM_AM::asr; break;
+ case ARM::LSRi: ShiftTy = ARM_AM::lsr; break;
+ case ARM::LSLi: ShiftTy = ARM_AM::lsl; break;
+ case ARM::RORi: ShiftTy = ARM_AM::ror; break;
+ }
+ // A shift by zero is a plain MOVr, not a MOVsi.
+ unsigned Opc = Amt == 0 ? ARM::MOVr : ARM::MOVsi;
+ unsigned Shifter = ARM_AM::getSORegOpc(ShiftTy, Amt);
+ MCInst TmpInst;
+ TmpInst.setOpcode(Opc);
+ TmpInst.addOperand(Inst.getOperand(0)); // Rd
+ TmpInst.addOperand(Inst.getOperand(1)); // Rn
+ if (Opc == ARM::MOVsi)
+ TmpInst.addOperand(MCOperand::CreateImm(Shifter)); // Shift value and ty
+ TmpInst.addOperand(Inst.getOperand(3)); // CondCode
+ TmpInst.addOperand(Inst.getOperand(4));
+ TmpInst.addOperand(Inst.getOperand(5)); // cc_out
+ Inst = TmpInst;
+ return true;
+ }
+ case ARM::t2LDMIA_UPD: {
+ // If this is a load of a single register, then we should use
+ // a post-indexed LDR instruction instead, per the ARM ARM.
+ if (Inst.getNumOperands() != 5)
+ return false;
+ MCInst TmpInst;
+ TmpInst.setOpcode(ARM::t2LDR_POST);
+ TmpInst.addOperand(Inst.getOperand(4)); // Rt
+ TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
+ TmpInst.addOperand(Inst.getOperand(1)); // Rn
+ TmpInst.addOperand(MCOperand::CreateImm(4));
+ TmpInst.addOperand(Inst.getOperand(2)); // CondCode
+ TmpInst.addOperand(Inst.getOperand(3));
+ Inst = TmpInst;
+ return true;
+ }
+ case ARM::t2STMDB_UPD: {
+ // If this is a store of a single register, then we should use
+ // a pre-indexed STR instruction instead, per the ARM ARM.
+ if (Inst.getNumOperands() != 5)
+ return false;
+ MCInst TmpInst;
+ TmpInst.setOpcode(ARM::t2STR_PRE);
+ TmpInst.addOperand(Inst.getOperand(0)); // Rn_wb
+ TmpInst.addOperand(Inst.getOperand(4)); // Rt
+ TmpInst.addOperand(Inst.getOperand(1)); // Rn
+ TmpInst.addOperand(MCOperand::CreateImm(-4));
+ TmpInst.addOperand(Inst.getOperand(2)); // CondCode
+ TmpInst.addOperand(Inst.getOperand(3));
+ Inst = TmpInst;
+ return true;
+ }
case ARM::LDMIA_UPD:
// If this is a load of a single register via a 'pop', then we should use
// a post-indexed LDR instruction instead, per the ARM ARM.
TmpInst.addOperand(Inst.getOperand(2)); // CondCode
TmpInst.addOperand(Inst.getOperand(3));
Inst = TmpInst;
+ return true;
}
break;
case ARM::STMDB_UPD:
// explicitly specified. From the ARM ARM: "Encoding T1 is preferred
// to encoding T2 if <Rd> is specified and encoding T2 is preferred
// to encoding T1 if <Rd> is omitted."
- if (Inst.getOperand(3).getImm() < 8 && Operands.size() == 6)
+ if (Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
Inst.setOpcode(ARM::tADDi3);
+ return true;
+ }
+ break;
+ case ARM::tSUBi8:
+ // If the immediate is in the range 0-7, we want tADDi3 iff Rd was
+ // explicitly specified. From the ARM ARM: "Encoding T1 is preferred
+ // to encoding T2 if <Rd> is specified and encoding T2 is preferred
+ // to encoding T1 if <Rd> is omitted."
+ if (Inst.getOperand(3).getImm() < 8 && Operands.size() == 6) {
+ Inst.setOpcode(ARM::tSUBi3);
+ return true;
+ }
break;
case ARM::tB:
// A Thumb conditional branch outside of an IT block is a tBcc.
- if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock())
+ if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()) {
Inst.setOpcode(ARM::tBcc);
+ return true;
+ }
break;
case ARM::t2B:
// A Thumb2 conditional branch outside of an IT block is a t2Bcc.
- if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock())
+ if (Inst.getOperand(1).getImm() != ARMCC::AL && !inITBlock()){
Inst.setOpcode(ARM::t2Bcc);
+ return true;
+ }
break;
case ARM::t2Bcc:
// If the conditional is AL or we're in an IT block, we really want t2B.
- if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock())
+ if (Inst.getOperand(1).getImm() == ARMCC::AL || inITBlock()) {
Inst.setOpcode(ARM::t2B);
+ return true;
+ }
break;
case ARM::tBcc:
// If the conditional is AL, we really want tB.
- if (Inst.getOperand(1).getImm() == ARMCC::AL)
+ if (Inst.getOperand(1).getImm() == ARMCC::AL) {
Inst.setOpcode(ARM::tB);
+ return true;
+ }
break;
case ARM::tLDMIA: {
// If the register list contains any high registers, or if the writeback
if (hasWritebackToken)
Inst.insert(Inst.begin(),
MCOperand::CreateReg(Inst.getOperand(0).getReg()));
+ return true;
+ }
+ break;
+ }
+ case ARM::tSTMIA_UPD: {
+ // If the register list contains any high registers, we need to use
+ // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
+ // should have generated an error in validateInstruction().
+ unsigned Rn = Inst.getOperand(0).getReg();
+ bool listContainsBase;
+ if (checkLowRegisterList(Inst, 4, Rn, 0, listContainsBase)) {
+ // 16-bit encoding isn't sufficient. Switch to the 32-bit version.
+ assert (isThumbTwo());
+ Inst.setOpcode(ARM::t2STMIA_UPD);
+ return true;
}
break;
}
+ case ARM::tPOP: {
+ bool listContainsBase;
+ // If the register list contains any high registers, we need to use
+ // the 32-bit encoding instead if we're in Thumb2. Otherwise, this
+ // should have generated an error in validateInstruction().
+ if (!checkLowRegisterList(Inst, 2, 0, ARM::PC, listContainsBase))
+ return false;
+ assert (isThumbTwo());
+ Inst.setOpcode(ARM::t2LDMIA_UPD);
+ // Add the base register and writeback operands.
+ Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
+ Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
+ return true;
+ }
+ case ARM::tPUSH: {
+ bool listContainsBase;
+ if (!checkLowRegisterList(Inst, 2, 0, ARM::LR, listContainsBase))
+ return false;
+ assert (isThumbTwo());
+ Inst.setOpcode(ARM::t2STMDB_UPD);
+ // Add the base register and writeback operands.
+ Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
+ Inst.insert(Inst.begin(), MCOperand::CreateReg(ARM::SP));
+ return true;
+ }
case ARM::t2MOVi: {
// If we can use the 16-bit encoding and the user didn't explicitly
// request the 32-bit variant, transform it here.
TmpInst.addOperand(Inst.getOperand(2));
TmpInst.addOperand(Inst.getOperand(3));
Inst = TmpInst;
+ return true;
}
break;
}
TmpInst.addOperand(Inst.getOperand(2));
TmpInst.addOperand(Inst.getOperand(3));
Inst = TmpInst;
+ return true;
+ }
+ break;
+ }
+ case ARM::t2SXTH:
+ case ARM::t2SXTB:
+ case ARM::t2UXTH:
+ case ARM::t2UXTB: {
+ // If we can use the 16-bit encoding and the user didn't explicitly
+ // request the 32-bit variant, transform it here.
+ if (isARMLowRegister(Inst.getOperand(0).getReg()) &&
+ isARMLowRegister(Inst.getOperand(1).getReg()) &&
+ Inst.getOperand(2).getImm() == 0 &&
+ (!static_cast<ARMOperand*>(Operands[2])->isToken() ||
+ static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
+ unsigned NewOpc;
+ switch (Inst.getOpcode()) {
+ default: llvm_unreachable("Illegal opcode!");
+ case ARM::t2SXTH: NewOpc = ARM::tSXTH; break;
+ case ARM::t2SXTB: NewOpc = ARM::tSXTB; break;
+ case ARM::t2UXTH: NewOpc = ARM::tUXTH; break;
+ case ARM::t2UXTB: NewOpc = ARM::tUXTB; break;
+ }
+ // The operands aren't the same for thumb1 (no rotate operand).
+ MCInst TmpInst;
+ TmpInst.setOpcode(NewOpc);
+ TmpInst.addOperand(Inst.getOperand(0));
+ TmpInst.addOperand(Inst.getOperand(1));
+ TmpInst.addOperand(Inst.getOperand(3));
+ TmpInst.addOperand(Inst.getOperand(4));
+ Inst = TmpInst;
+ return true;
}
break;
}
break;
}
}
+ return false;
}
unsigned ARMAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
// 16-bit thumb arithmetic instructions either require or preclude the 'S'
// suffix depending on whether they're in an IT block or not.
unsigned Opc = Inst.getOpcode();
- MCInstrDesc &MCID = getInstDesc(Opc);
+ const MCInstrDesc &MCID = getInstDesc(Opc);
if (MCID.TSFlags & ARMII::ThumbArithFlagSetting) {
assert(MCID.hasOptionalDef() &&
"optionally flag setting instruction missing optional def operand");
}
// Some instructions need post-processing to, for example, tweak which
- // encoding is selected.
- processInstruction(Inst, Operands);
+ // encoding is selected. Loop on it while changes happen so the
+ // individual transformations can chain off each other. E.g.,
+ // tPOP(r8)->t2LDMIA_UPD(sp,r8)->t2STR_POST(sp,r8)
+ while (processInstruction(Inst, Operands))
+ ;
// Only move forward at the very end so that everything in validate
// and process gets a consistent answer about whether we're in an IT
const AsmToken &Tok = Parser.getTok();
if (Tok.isNot(AsmToken::Identifier) && Tok.isNot(AsmToken::String))
return Error(L, "unexpected token in .thumb_func directive");
- Name = Tok.getString();
+ Name = Tok.getIdentifier();
Parser.Lex(); // Consume the identifier token.
}
- if (getLexer().isNot(AsmToken::EndOfStatement))
+ if (getLexer().isNot(AsmToken::EndOfStatement))
return Error(L, "unexpected token in directive");
Parser.Lex();
// FIXME: assuming function name will be the line following .thumb_func
if (!isMachO) {
- Name = Parser.getTok().getString();
+ Name = Parser.getTok().getIdentifier();
}
// Mark symbol as a thumb symbol.
projects / oota-llvm.git / blobdiff