================ Comment at: lib/MC/MCParser/AsmParser.cpp:2129 @@ -2122,2 +2128,3 @@ + if (PrefixLoc.getPointer() + 1 != getTok().getLoc().getPointer()) return true; ---------------- Should this be gated on `doesAllowAtInName`? http://llvm-reviews.chandlerc.com/D1978