Add support for AVX to materialize +0.0 when doing scalar FP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121415 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86MCInstLower.cpp b/lib/Target/X86/X86MCInstLower.cpp
index 3ca87ed..cbe6db2 100644
--- a/lib/Target/X86/X86MCInstLower.cpp
+++ b/lib/Target/X86/X86MCInstLower.cpp
@@ -374,6 +374,8 @@
   case X86::MOV32r0:      LowerUnaryToTwoAddr(OutMI, X86::XOR32rr); break;
   case X86::FsFLD0SS:      LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
   case X86::FsFLD0SD:      LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
+  case X86::VFsFLD0SS:     LowerUnaryToTwoAddr(OutMI, X86::VPXORrr); break;
+  case X86::VFsFLD0SD:     LowerUnaryToTwoAddr(OutMI, X86::VPXORrr); break;
   case X86::V_SET0PS:      LowerUnaryToTwoAddr(OutMI, X86::XORPSrr); break;
   case X86::V_SET0PD:      LowerUnaryToTwoAddr(OutMI, X86::XORPDrr); break;
   case X86::V_SET0PI:      LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;