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
/// {
OperandMatchResultTy parseBitfield(SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parsePostIdxReg(SmallVectorImpl<MCParsedAsmOperand*>&);
OperandMatchResultTy parseAM3Offset(SmallVectorImpl<MCParsedAsmOperand*>&);
+ OperandMatchResultTy parseFPImm(SmallVectorImpl<MCParsedAsmOperand*>&);
// Asm Match Converter Methods
bool cvtT2LdrdPre(MCInst &Inst, unsigned Opcode,
/// 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_Immediate,
+ k_FPImmediate,
+ k_MemBarrierOpt,
+ k_Memory,
+ k_PostIndexRegister,
+ k_MSRMask,
+ k_ProcIFlags,
+ k_VectorIndex,
+ k_Register,
+ k_RegisterList,
+ k_DPRRegisterList,
+ k_SPRRegisterList,
+ k_ShiftedRegister,
+ k_ShiftedImmediate,
+ k_ShifterImmediate,
+ k_RotateImmediate,
+ k_BitfieldDescriptor,
+ k_Token
} Kind;
SMLoc StartLoc, EndLoc;
unsigned RegNum;
} Reg;
+ 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_CoprocNum:
+ case k_CoprocReg:
Cop = o.Cop;
break;
- case Immediate:
+ 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 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;
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;
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;
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 (!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;
}
+ 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()))
+ 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 [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; }
+
+ 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 isMSRMask() const { return Kind == MSRMask; }
- bool isProcIFlags() const { return Kind == ProcIFlags; }
void addExpr(MCInst &Inst, const MCExpr *Expr) const {
// Add as immediates when possible. Null MCExpr = 0.
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
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!");
// 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 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()));
+ }
+
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;
}
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 *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: {
+ case k_ITCondMask: {
static char MaskStr[][6] = { "()", "(t)", "(e)", "(tt)", "(et)", "(te)",
"(ee)", "(ttt)", "(ett)", "(tet)", "(eet)", "(tte)", "(ete)",
"(tee)", "(eee)" };
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_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_Token:
OS << "'" << getToken() << "'";
break;
+ case k_VectorIndex:
+ OS << "<vectorindex " << getVectorIndex() << ">";
+ break;
}
}
if (!RegNum) return -1;
Parser.Lex(); // Eat identifier token.
+
+#if 0
+ // 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;
+ SMLoc ExprLoc = Parser.getTok().getLoc();
+ 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()));
+ }
+#endif
+
return RegNum;
}
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;
+ SMLoc ExprLoc = Parser.getTok().getLoc();
+ 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;
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 = "";
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]
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.
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;
+ 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.
Mnemonic == "rrx" || Mnemonic == "ror" || Mnemonic == "sub" ||
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" ||
+ Mnemonic == "sbc" || Mnemonic == "eor" || Mnemonic == "neg" ||
(!isThumb() && (Mnemonic == "smull" || Mnemonic == "mov" ||
- Mnemonic == "mla" || Mnemonic == "smlal"))) {
+ Mnemonic == "mla" || Mnemonic == "smlal" ||
+ Mnemonic == "umlal" || Mnemonic == "umull"))) {
CanAcceptCarrySet = true;
} else
CanAcceptCarrySet = false;
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())) {
}
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 &&
break;
}
case ARM::t2SXTH:
- case ARM::t2SXTB: {
+ 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()) &&
Inst.getOperand(2).getImm() == 0 &&
(!static_cast<ARMOperand*>(Operands[2])->isToken() ||
static_cast<ARMOperand*>(Operands[2])->getToken() != ".w")) {
- unsigned NewOpc = (Inst.getOpcode() == ARM::t2SXTH) ?
- ARM::tSXTH : ARM::tSXTB;
+ 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);
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