1 files changed, 24 insertions, 4 deletions
diff --git a/contrib/llvm/lib/MC/MCAsmInfo.cpp b/contrib/llvm/lib/MC/MCAsmInfo.cpp
index b61f5b1..100dc7c 100644
--- a/contrib/llvm/lib/MC/MCAsmInfo.cpp
+++ b/contrib/llvm/lib/MC/MCAsmInfo.cpp
@@ -50,6 +50,7 @@ MCAsmInfo::MCAsmInfo() {
   Code64Directive = ".code64";
   AssemblerDialect = 0;
   AllowAtInName = false;
+  SupportsQuotedNames = true;
   UseDataRegionDirectives = false;
   ZeroDirective = "\t.zero\t";
   AsciiDirective = "\t.ascii\t";
@@ -128,12 +129,31 @@ MCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym,
                                unsigned Encoding,
                                MCStreamer &Streamer) const {
   if (!(Encoding & dwarf::DW_EH_PE_pcrel))
-    return MCSymbolRefExpr::Create(Sym, Streamer.getContext());
+    return MCSymbolRefExpr::create(Sym, Streamer.getContext());
 
   MCContext &Context = Streamer.getContext();
-  const MCExpr *Res = MCSymbolRefExpr::Create(Sym, Context);
+  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);
+  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;
+  }
+
+  return true;
 }