Check for invalid cc's in f80 select.

llvm-svn: 43033
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 53bb81d..9378f68 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -4139,6 +4139,8 @@
       IllegalFPCMov = !hasFPCMov(cast<ConstantSDNode>(CC)->getSignExtended());
     else if (VT == MVT::f64 && !X86ScalarSSEf64)
       IllegalFPCMov = !hasFPCMov(cast<ConstantSDNode>(CC)->getSignExtended());
+    else if (VT == MVT::f80)
+      IllegalFPCMov = !hasFPCMov(cast<ConstantSDNode>(CC)->getSignExtended());
     if ((Opc == X86ISD::CMP ||
          Opc == X86ISD::COMI ||
          Opc == X86ISD::UCOMI) && !IllegalFPCMov) {