Index: llvm/lib/MC/MCParser/AsmParser.cpp
===================================================================
--- llvm/lib/MC/MCParser/AsmParser.cpp
+++ llvm/lib/MC/MCParser/AsmParser.cpp
@@ -1115,7 +1115,7 @@
     // Lookup the symbol variant if used.
     if (!Split.second.empty()) {
       Variant = MCSymbolRefExpr::getVariantKindForName(Split.second);
-      if (Variant != MCSymbolRefExpr::VK_Invalid) {
+      if (Variant != MCSymbolRefExpr::VK_Invalid && !Split.first.empty()) {
         SymbolName = Split.first;
       } else if (MAI.doesAllowAtInName() && !MAI.useParensForSymbolVariant()) {
         Variant = MCSymbolRefExpr::VK_None;