diff options
Diffstat (limited to 'lib/Target/X86/X86MCCodeEmitter.cpp')
| -rw-r--r-- | lib/Target/X86/X86MCCodeEmitter.cpp | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/lib/Target/X86/X86MCCodeEmitter.cpp b/lib/Target/X86/X86MCCodeEmitter.cpp index 0e3b571..f195a67 100644 --- a/lib/Target/X86/X86MCCodeEmitter.cpp +++ b/lib/Target/X86/X86MCCodeEmitter.cpp @@ -382,7 +382,7 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, const TargetInstrDesc &Desc, raw_ostream &OS) const { bool HasVEX_4V = false; - if ((TSFlags >> 32) & X86II::VEX_4V) + if ((TSFlags >> X86II::VEXShift) & X86II::VEX_4V) HasVEX_4V = true; // VEX_R: opcode externsion equivalent to REX.R in @@ -446,10 +446,10 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, if (TSFlags & X86II::OpSize) VEX_PP = 0x01; - if ((TSFlags >> 32) & X86II::VEX_W) + if ((TSFlags >> X86II::VEXShift) & X86II::VEX_W) VEX_W = 1; - if ((TSFlags >> 32) & X86II::VEX_L) + if ((TSFlags >> X86II::VEXShift) & X86II::VEX_L) VEX_L = 1; switch (TSFlags & X86II::Op0Mask) { @@ -470,6 +470,8 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, case X86II::XD: // F2 0F VEX_PP = 0x3; break; + case X86II::A6: // Bypass: Not used by VEX + case X86II::A7: // Bypass: Not used by VEX case X86II::TB: // Bypass: Not used by VEX case 0: break; // No prefix! @@ -512,13 +514,13 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, } // To only check operands before the memory address ones, start - // the search from the begining + // the search from the beginning if (IsDestMem) CurOp = 0; // If the last register should be encoded in the immediate field // do not use any bit from VEX prefix to this register, ignore it - if ((TSFlags >> 32) & X86II::VEX_I8IMM) + if ((TSFlags >> X86II::VEXShift) & X86II::VEX_I8IMM) NumOps--; for (; CurOp != NumOps; ++CurOp) { @@ -742,6 +744,8 @@ void X86MCCodeEmitter::EmitOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, case X86II::TB: // Two-byte opcode prefix case X86II::T8: // 0F 38 case X86II::TA: // 0F 3A + case X86II::A6: // 0F A6 + case X86II::A7: // 0F A7 Need0FPrefix = true; break; case X86II::TF: // F2 0F 38 @@ -786,6 +790,12 @@ void X86MCCodeEmitter::EmitOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, case X86II::TA: // 0F 3A EmitByte(0x3A, CurByte, OS); break; + case X86II::A6: // 0F A6 + EmitByte(0xA6, CurByte, OS); + break; + case X86II::A7: // 0F A7 + EmitByte(0xA7, CurByte, OS); + break; } } @@ -819,9 +829,9 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS, // It uses the VEX.VVVV field? bool HasVEX_4V = false; - if ((TSFlags >> 32) & X86II::VEX) + if ((TSFlags >> X86II::VEXShift) & X86II::VEX) HasVEXPrefix = true; - if ((TSFlags >> 32) & X86II::VEX_4V) + if ((TSFlags >> X86II::VEXShift) & X86II::VEX_4V) HasVEX_4V = true; @@ -837,7 +847,7 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS, unsigned char BaseOpcode = X86II::getBaseOpcodeFor(TSFlags); - if ((TSFlags >> 32) & X86II::Has3DNow0F0FOpcode) + if ((TSFlags >> X86II::VEXShift) & X86II::Has3DNow0F0FOpcode) BaseOpcode = 0x0F; // Weird 3DNow! encoding. unsigned SrcRegNum = 0; @@ -994,7 +1004,7 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS, if (CurOp != NumOps) { // The last source register of a 4 operand instruction in AVX is encoded // in bits[7:4] of a immediate byte, and bits[3:0] are ignored. - if ((TSFlags >> 32) & X86II::VEX_I8IMM) { + if ((TSFlags >> X86II::VEXShift) & X86II::VEX_I8IMM) { const MCOperand &MO = MI.getOperand(CurOp++); bool IsExtReg = X86InstrInfo::isX86_64ExtendedReg(MO.getReg()); @@ -1017,7 +1027,7 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS, } } - if ((TSFlags >> 32) & X86II::Has3DNow0F0FOpcode) + if ((TSFlags >> X86II::VEXShift) & X86II::Has3DNow0F0FOpcode) EmitByte(X86II::getBaseOpcodeFor(TSFlags), CurByte, OS); |
