Add instruction patterns and encodings for the x86 bt instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61400 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 398170e..3fda975 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -6513,6 +6513,7 @@
   case X86ISD::CALL:               return "X86ISD::CALL";
   case X86ISD::TAILCALL:           return "X86ISD::TAILCALL";
   case X86ISD::RDTSC_DAG:          return "X86ISD::RDTSC_DAG";
+  case X86ISD::BT:                 return "X86ISD::BT";
   case X86ISD::CMP:                return "X86ISD::CMP";
   case X86ISD::COMI:               return "X86ISD::COMI";
   case X86ISD::UCOMI:              return "X86ISD::UCOMI";