Add support for AVX enhanced comparison predicates. Patch from Kay Tiong Khoo.

llvm-svn: 153935
diff --git a/llvm/utils/TableGen/EDEmitter.cpp b/llvm/utils/TableGen/EDEmitter.cpp
index 3eed07c..3809a45 100644
--- a/llvm/utils/TableGen/EDEmitter.cpp
+++ b/llvm/utils/TableGen/EDEmitter.cpp
@@ -287,6 +287,7 @@
   IMM("i64i8imm");
   IMM("i64i32imm");
   IMM("SSECC");
+  IMM("AVXCC");
 
   // all R, I, R, I, R
   MEM("i8mem");