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Diffstat (limited to 'lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp')
-rw-r--r--lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp77
1 files changed, 45 insertions, 32 deletions
diff --git a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp
index 2aa1010..a18d465 100644
--- a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp
+++ b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp
@@ -315,6 +315,8 @@ public:
unsigned EncodedValue) const;
unsigned NEONThumb2DupPostEncoder(const MCInst &MI,
unsigned EncodedValue) const;
+ unsigned NEONThumb2V8PostEncoder(const MCInst &MI,
+ unsigned EncodedValue) const;
unsigned VFPThumb2PostEncoder(const MCInst &MI,
unsigned EncodedValue) const;
@@ -389,6 +391,17 @@ unsigned ARMMCCodeEmitter::NEONThumb2DupPostEncoder(const MCInst &MI,
return EncodedValue;
}
+/// Post-process encoded NEON v8 instructions, and rewrite them to Thumb2 form
+/// if we are in Thumb2.
+unsigned ARMMCCodeEmitter::NEONThumb2V8PostEncoder(const MCInst &MI,
+ unsigned EncodedValue) const {
+ if (isThumb2()) {
+ EncodedValue |= 0xC000000; // Set bits 27-26
+ }
+
+ return EncodedValue;
+}
+
/// VFPThumb2PostEncoder - Post-process encoded VFP instructions and rewrite
/// them to their Thumb2 form if we are currently in Thumb2 mode.
unsigned ARMMCCodeEmitter::
@@ -407,7 +420,7 @@ getMachineOpValue(const MCInst &MI, const MCOperand &MO,
SmallVectorImpl<MCFixup> &Fixups) const {
if (MO.isReg()) {
unsigned Reg = MO.getReg();
- unsigned RegNo = CTX.getRegisterInfo().getEncodingValue(Reg);
+ unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg);
// Q registers are encoded as 2x their register number.
switch (Reg) {
@@ -436,7 +449,7 @@ EncodeAddrModeOpValues(const MCInst &MI, unsigned OpIdx, unsigned &Reg,
const MCOperand &MO = MI.getOperand(OpIdx);
const MCOperand &MO1 = MI.getOperand(OpIdx + 1);
- Reg = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ Reg = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
int32_t SImm = MO1.getImm();
bool isAdd = true;
@@ -724,8 +737,8 @@ getThumbAddrModeRegRegOpValue(const MCInst &MI, unsigned OpIdx,
// {2-0} = Rn
const MCOperand &MO1 = MI.getOperand(OpIdx);
const MCOperand &MO2 = MI.getOperand(OpIdx + 1);
- unsigned Rn = CTX.getRegisterInfo().getEncodingValue(MO1.getReg());
- unsigned Rm = CTX.getRegisterInfo().getEncodingValue(MO2.getReg());
+ unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg());
+ unsigned Rm = CTX.getRegisterInfo()->getEncodingValue(MO2.getReg());
return (Rm << 3) | Rn;
}
@@ -741,12 +754,12 @@ getAddrModeImm12OpValue(const MCInst &MI, unsigned OpIdx,
// If The first operand isn't a register, we have a label reference.
const MCOperand &MO = MI.getOperand(OpIdx);
if (!MO.isReg()) {
- Reg = CTX.getRegisterInfo().getEncodingValue(ARM::PC); // Rn is PC.
+ Reg = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC.
Imm12 = 0;
- isAdd = false ; // 'U' bit is set as part of the fixup.
if (MO.isExpr()) {
const MCExpr *Expr = MO.getExpr();
+ isAdd = false ; // 'U' bit is set as part of the fixup.
MCFixupKind Kind;
if (isThumb2())
@@ -821,7 +834,7 @@ getT2AddrModeImm8s4OpValue(const MCInst &MI, unsigned OpIdx,
// If The first operand isn't a register, we have a label reference.
const MCOperand &MO = MI.getOperand(OpIdx);
if (!MO.isReg()) {
- Reg = CTX.getRegisterInfo().getEncodingValue(ARM::PC); // Rn is PC.
+ Reg = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC.
Imm8 = 0;
isAdd = false ; // 'U' bit is set as part of the fixup.
@@ -857,7 +870,7 @@ getT2AddrModeImm0_1020s4OpValue(const MCInst &MI, unsigned OpIdx,
// {7-0} = imm8
const MCOperand &MO = MI.getOperand(OpIdx);
const MCOperand &MO1 = MI.getOperand(OpIdx + 1);
- unsigned Reg = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Reg = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
unsigned Imm8 = MO1.getImm();
return (Reg << 8) | Imm8;
}
@@ -940,8 +953,8 @@ getLdStSORegOpValue(const MCInst &MI, unsigned OpIdx,
const MCOperand &MO = MI.getOperand(OpIdx);
const MCOperand &MO1 = MI.getOperand(OpIdx+1);
const MCOperand &MO2 = MI.getOperand(OpIdx+2);
- unsigned Rn = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
- unsigned Rm = CTX.getRegisterInfo().getEncodingValue(MO1.getReg());
+ unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
+ unsigned Rm = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg());
unsigned ShImm = ARM_AM::getAM2Offset(MO2.getImm());
bool isAdd = ARM_AM::getAM2Op(MO2.getImm()) == ARM_AM::add;
ARM_AM::ShiftOpc ShOp = ARM_AM::getAM2ShiftOpc(MO2.getImm());
@@ -975,7 +988,7 @@ getAddrMode2OpValue(const MCInst &MI, unsigned OpIdx,
// {12} isAdd
// {11-0} imm12/Rm
const MCOperand &MO = MI.getOperand(OpIdx);
- unsigned Rn = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
uint32_t Binary = getAddrMode2OffsetOpValue(MI, OpIdx + 1, Fixups);
Binary |= Rn << 14;
return Binary;
@@ -998,7 +1011,7 @@ getAddrMode2OffsetOpValue(const MCInst &MI, unsigned OpIdx,
ARM_AM::ShiftOpc ShOp = ARM_AM::getAM2ShiftOpc(Imm);
Binary <<= 7; // Shift amount is bits [11:7]
Binary |= getShiftOp(ShOp) << 5; // Shift type is bits [6:5]
- Binary |= CTX.getRegisterInfo().getEncodingValue(MO.getReg()); // Rm is bits [3:0]
+ Binary |= CTX.getRegisterInfo()->getEncodingValue(MO.getReg()); // Rm is bits [3:0]
}
return Binary | (isAdd << 12) | (isReg << 13);
}
@@ -1011,7 +1024,7 @@ getPostIdxRegOpValue(const MCInst &MI, unsigned OpIdx,
const MCOperand &MO = MI.getOperand(OpIdx);
const MCOperand &MO1 = MI.getOperand(OpIdx+1);
bool isAdd = MO1.getImm() != 0;
- return CTX.getRegisterInfo().getEncodingValue(MO.getReg()) | (isAdd << 4);
+ return CTX.getRegisterInfo()->getEncodingValue(MO.getReg()) | (isAdd << 4);
}
uint32_t ARMMCCodeEmitter::
@@ -1029,7 +1042,7 @@ getAddrMode3OffsetOpValue(const MCInst &MI, unsigned OpIdx,
uint32_t Imm8 = ARM_AM::getAM3Offset(Imm);
// if reg +/- reg, Rm will be non-zero. Otherwise, we have reg +/- imm8
if (!isImm)
- Imm8 = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ Imm8 = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
return Imm8 | (isAdd << 8) | (isImm << 9);
}
@@ -1047,7 +1060,7 @@ getAddrMode3OpValue(const MCInst &MI, unsigned OpIdx,
// If The first operand isn't a register, we have a label reference.
if (!MO.isReg()) {
- unsigned Rn = CTX.getRegisterInfo().getEncodingValue(ARM::PC); // Rn is PC.
+ unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC.
assert(MO.isExpr() && "Unexpected machine operand type!");
const MCExpr *Expr = MO.getExpr();
@@ -1057,14 +1070,14 @@ getAddrMode3OpValue(const MCInst &MI, unsigned OpIdx,
++MCNumCPRelocations;
return (Rn << 9) | (1 << 13);
}
- unsigned Rn = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
unsigned Imm = MO2.getImm();
bool isAdd = ARM_AM::getAM3Op(Imm) == ARM_AM::add;
bool isImm = MO1.getReg() == 0;
uint32_t Imm8 = ARM_AM::getAM3Offset(Imm);
// if reg +/- reg, Rm will be non-zero. Otherwise, we have reg +/- imm8
if (!isImm)
- Imm8 = CTX.getRegisterInfo().getEncodingValue(MO1.getReg());
+ Imm8 = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg());
return (Rn << 9) | Imm8 | (isAdd << 8) | (isImm << 13);
}
@@ -1092,7 +1105,7 @@ getAddrModeISOpValue(const MCInst &MI, unsigned OpIdx,
// {2-0} = Rn
const MCOperand &MO = MI.getOperand(OpIdx);
const MCOperand &MO1 = MI.getOperand(OpIdx + 1);
- unsigned Rn = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Rn = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
unsigned Imm5 = MO1.getImm();
return ((Imm5 & 0x1f) << 3) | Rn;
}
@@ -1119,7 +1132,7 @@ getAddrMode5OpValue(const MCInst &MI, unsigned OpIdx,
// If The first operand isn't a register, we have a label reference.
const MCOperand &MO = MI.getOperand(OpIdx);
if (!MO.isReg()) {
- Reg = CTX.getRegisterInfo().getEncodingValue(ARM::PC); // Rn is PC.
+ Reg = CTX.getRegisterInfo()->getEncodingValue(ARM::PC); // Rn is PC.
Imm8 = 0;
isAdd = false; // 'U' bit is handled as part of the fixup.
@@ -1165,7 +1178,7 @@ getSORegRegOpValue(const MCInst &MI, unsigned OpIdx,
ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(MO2.getImm());
// Encode Rm.
- unsigned Binary = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Binary = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
// Encode the shift opcode.
unsigned SBits = 0;
@@ -1190,7 +1203,7 @@ getSORegRegOpValue(const MCInst &MI, unsigned OpIdx,
// Encode the shift operation Rs.
// Encode Rs bit[11:8].
assert(ARM_AM::getSORegOffset(MO2.getImm()) == 0);
- return Binary | (CTX.getRegisterInfo().getEncodingValue(Rs) << ARMII::RegRsShift);
+ return Binary | (CTX.getRegisterInfo()->getEncodingValue(Rs) << ARMII::RegRsShift);
}
unsigned ARMMCCodeEmitter::
@@ -1209,7 +1222,7 @@ getSORegImmOpValue(const MCInst &MI, unsigned OpIdx,
ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(MO1.getImm());
// Encode Rm.
- unsigned Binary = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Binary = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
// Encode the shift opcode.
unsigned SBits = 0;
@@ -1248,9 +1261,9 @@ getT2AddrModeSORegOpValue(const MCInst &MI, unsigned OpNum,
// Encoded as [Rn, Rm, imm].
// FIXME: Needs fixup support.
- unsigned Value = CTX.getRegisterInfo().getEncodingValue(MO1.getReg());
+ unsigned Value = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg());
Value <<= 4;
- Value |= CTX.getRegisterInfo().getEncodingValue(MO2.getReg());
+ Value |= CTX.getRegisterInfo()->getEncodingValue(MO2.getReg());
Value <<= 2;
Value |= MO3.getImm();
@@ -1264,7 +1277,7 @@ getT2AddrModeImm8OpValue(const MCInst &MI, unsigned OpNum,
const MCOperand &MO2 = MI.getOperand(OpNum+1);
// FIXME: Needs fixup support.
- unsigned Value = CTX.getRegisterInfo().getEncodingValue(MO1.getReg());
+ unsigned Value = CTX.getRegisterInfo()->getEncodingValue(MO1.getReg());
// Even though the immediate is 8 bits long, we need 9 bits in order
// to represent the (inverse of the) sign bit.
@@ -1326,7 +1339,7 @@ getT2SORegOpValue(const MCInst &MI, unsigned OpIdx,
ARM_AM::ShiftOpc SOpc = ARM_AM::getSORegShOp(MO1.getImm());
// Encode Rm.
- unsigned Binary = CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ unsigned Binary = CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
// Encode the shift opcode.
unsigned SBits = 0;
@@ -1382,7 +1395,7 @@ getRegisterListOpValue(const MCInst &MI, unsigned Op,
if (SPRRegs || DPRRegs) {
// VLDM/VSTM
- unsigned RegNo = CTX.getRegisterInfo().getEncodingValue(Reg);
+ unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg);
unsigned NumRegs = (MI.getNumOperands() - Op) & 0xff;
Binary |= (RegNo & 0x1f) << 8;
if (SPRRegs)
@@ -1391,7 +1404,7 @@ getRegisterListOpValue(const MCInst &MI, unsigned Op,
Binary |= NumRegs * 2;
} else {
for (unsigned I = Op, E = MI.getNumOperands(); I < E; ++I) {
- unsigned RegNo = CTX.getRegisterInfo().getEncodingValue(MI.getOperand(I).getReg());
+ unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(MI.getOperand(I).getReg());
Binary |= 1 << RegNo;
}
}
@@ -1407,7 +1420,7 @@ getAddrMode6AddressOpValue(const MCInst &MI, unsigned Op,
const MCOperand &Reg = MI.getOperand(Op);
const MCOperand &Imm = MI.getOperand(Op + 1);
- unsigned RegNo = CTX.getRegisterInfo().getEncodingValue(Reg.getReg());
+ unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg.getReg());
unsigned Align = 0;
switch (Imm.getImm()) {
@@ -1430,7 +1443,7 @@ getAddrMode6OneLane32AddressOpValue(const MCInst &MI, unsigned Op,
const MCOperand &Reg = MI.getOperand(Op);
const MCOperand &Imm = MI.getOperand(Op + 1);
- unsigned RegNo = CTX.getRegisterInfo().getEncodingValue(Reg.getReg());
+ unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg.getReg());
unsigned Align = 0;
switch (Imm.getImm()) {
@@ -1456,7 +1469,7 @@ getAddrMode6DupAddressOpValue(const MCInst &MI, unsigned Op,
const MCOperand &Reg = MI.getOperand(Op);
const MCOperand &Imm = MI.getOperand(Op + 1);
- unsigned RegNo = CTX.getRegisterInfo().getEncodingValue(Reg.getReg());
+ unsigned RegNo = CTX.getRegisterInfo()->getEncodingValue(Reg.getReg());
unsigned Align = 0;
switch (Imm.getImm()) {
@@ -1475,7 +1488,7 @@ getAddrMode6OffsetOpValue(const MCInst &MI, unsigned Op,
SmallVectorImpl<MCFixup> &Fixups) const {
const MCOperand &MO = MI.getOperand(Op);
if (MO.getReg() == 0) return 0x0D;
- return CTX.getRegisterInfo().getEncodingValue(MO.getReg());
+ return CTX.getRegisterInfo()->getEncodingValue(MO.getReg());
}
unsigned ARMMCCodeEmitter::
generated by cgit v1.1 at 2025-11-10 11:24:35 +0000