diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 3c84ef5f9e..e414e19656 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -121,11 +121,14 @@ MachineInstr *X86InstrInfo::convertToThreeAddress(MachineInstr *MI) const { default: break; case X86::SHUFPSrri: { assert(MI->getNumOperands() == 4 && "Unknown shufps instruction!"); - unsigned A = MI->getOperand(0).getReg(); - unsigned B = MI->getOperand(1).getReg(); - unsigned C = MI->getOperand(2).getReg(); - unsigned M = MI->getOperand(3).getImmedValue(); - return BuildMI(X86::PSHUFDri, 2, A).addReg(B).addImm(M); + 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(); + unsigned M = MI->getOperand(3).getImmedValue(); + return BuildMI(X86::PSHUFDri, 2, A).addReg(B).addImm(M); + } } } |