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Oops. PSHUFD is only available with SSE2. 

llvm-svn: 28573
This commit is contained in:
Evan Cheng 2006-05-30 21:30:59 +00:00
parent a5d4587296
commit a4fc5b8699
1 changed files with 8 additions and 5 deletions
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3
llvm/lib/Target/X86/X86InstrInfo.cpp
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@ -121,6 +121,8 @@ MachineInstr *X86InstrInfo::convertToThreeAddress(MachineInstr *MI) const {
default: break;
case X86::SHUFPSrri: {
assert(MI->getNumOperands() == 4 && "Unknown shufps instruction!");
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
if (Subtarget->hasSSE2()) {
unsigned A = MI->getOperand(0).getReg();
unsigned B = MI->getOperand(1).getReg();
unsigned C = MI->getOperand(2).getReg();
@ -128,6 +130,7 @@ MachineInstr *X86InstrInfo::convertToThreeAddress(MachineInstr *MI) const {
return BuildMI(X86::PSHUFDri, 2, A).addReg(B).addImm(M);
}
}
}
// FIXME: None of these instructions are promotable to LEAs without
// additional information. In particular, LEA doesn't set the flags that