+const MCExpr *
+MCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym,
+ unsigned Encoding,
+ MCStreamer &Streamer) const {
+ if (!(Encoding & dwarf::DW_EH_PE_pcrel))
+ return MCSymbolRefExpr::create(Sym, Streamer.getContext());
+
+ MCContext &Context = Streamer.getContext();
+ const MCExpr *Res = MCSymbolRefExpr::create(Sym, Context);
+ MCSymbol *PCSym = Context.createTempSymbol();
+ Streamer.EmitLabel(PCSym);
+ const MCExpr *PC = MCSymbolRefExpr::create(PCSym, Context);
+ return MCBinaryExpr::createSub(Res, PC, Context);
+}
+
+static bool isAcceptableChar(char C) {
+ return (C >= 'a' && C <= 'z') || (C >= 'A' && C <= 'Z') ||
+ (C >= '0' && C <= '9') || C == '_' || C == '$' || C == '.' || C == '@';
+}
+
+bool MCAsmInfo::isValidUnquotedName(StringRef Name) const {
+ if (Name.empty())
+ return false;
+
+ // If any of the characters in the string is an unacceptable character, force
+ // quotes.
+ for (char C : Name) {
+ if (!isAcceptableChar(C))
+ return false;
+ }