diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index 9c8b5f1..b38bf6e 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -1695,6 +1695,7 @@
   case lltok::kw_coldcc:         CC = CallingConv::Cold; break;
   case lltok::kw_x86_stdcallcc:  CC = CallingConv::X86_StdCall; break;
   case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break;
+  case lltok::kw_x86_regcallcc:  CC = CallingConv::X86_RegCall; break;
   case lltok::kw_x86_thiscallcc: CC = CallingConv::X86_ThisCall; break;
   case lltok::kw_x86_vectorcallcc:CC = CallingConv::X86_VectorCall; break;
   case lltok::kw_arm_apcscc:     CC = CallingConv::ARM_APCS; break;