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Bug fix: XS, XD prefixes were being emitted twice.

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XMM registers were not being handled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-02-14 21:45:24 +00:00
parent 33d5082779
commit 576c141921
1 changed files with 9 additions and 9 deletions
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18
lib/Target/X86/X86CodeEmitter.cpp
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@ -186,6 +186,11 @@ static unsigned getX86RegNum(unsigned RegNo) {
case X86::ST0: case X86::ST1: case X86::ST2: case X86::ST3:
case X86::ST4: case X86::ST5: case X86::ST6: case X86::ST7:
return RegNo-X86::ST0;
case X86::XMM0: case X86::XMM1: case X86::XMM2: case X86::XMM3:
case X86::XMM4: case X86::XMM5: case X86::XMM6: case X86::XMM7:
return RegNo-X86::XMM0;
default:
assert(MRegisterInfo::isVirtualRegister(RegNo) &&
"Unknown physical register!");
@ -371,21 +376,16 @@ void Emitter::emitInstruction(const MachineInstr &MI) {
case X86II::TB:
MCE.emitByte(0x0F); // Two-byte opcode prefix
break;
case X86II::REP: break; // already handled.
case X86II::XS: // F3 0F
MCE.emitByte(0xF3);
MCE.emitByte(0x0F);
break;
case X86II::XD: // F2 0F
MCE.emitByte(0xF2);
MCE.emitByte(0x0F);
break;
case X86II::D8: case X86II::D9: case X86II::DA: case X86II::DB:
case X86II::DC: case X86II::DD: case X86II::DE: case X86II::DF:
MCE.emitByte(0xD8+
(((Desc.TSFlags & X86II::Op0Mask)-X86II::D8)
>> X86II::Op0Shift));
break; // Two-byte opcode prefix
case X86II::REP:
case X86II::XS:
case X86II::XD:
break; // already handled.
default: assert(0 && "Invalid prefix!");
case 0: break; // No prefix!
}