fix rdar://8470918 - llvm-mc can't assemble smovl


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114819 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 698e282..8252ea9 100644
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -634,6 +634,10 @@
     .Case("repnz", "repne")
     .Case("iret", "iretl")
     .Case("sysret", "sysretl")
+    .Case("smovb", "movsb")
+    .Case("smovw", "movsw")
+    .Case("smovl", "movsl")
+    .Case("smovq", "movsq")
     .Case("push", Is64Bit ? "pushq" : "pushl")
     .Case("pop", Is64Bit ? "popq" : "popl")
     .Case("pushf", Is64Bit ? "pushfq" : "pushfl")