Check in LLVM r95781.
diff --git a/lib/MC/MCSymbol.cpp b/lib/MC/MCSymbol.cpp
new file mode 100644
index 0000000..3fb1233
--- /dev/null
+++ b/lib/MC/MCSymbol.cpp
@@ -0,0 +1,55 @@
+//===- lib/MC/MCSymbol.cpp - MCSymbol implementation ----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+// Sentinel value for the absolute pseudo section.
+const MCSection *MCSymbol::AbsolutePseudoSection =
+ reinterpret_cast<const MCSection *>(1);
+
+static bool isAcceptableChar(char C) {
+ if ((C < 'a' || C > 'z') &&
+ (C < 'A' || C > 'Z') &&
+ (C < '0' || C > '9') &&
+ C != '_' && C != '$' && C != '.' && C != '@')
+ return false;
+ return true;
+}
+
+/// NameNeedsQuoting - Return true if the identifier \arg Str needs quotes to be
+/// syntactically correct.
+static bool NameNeedsQuoting(StringRef Str) {
+ assert(!Str.empty() && "Cannot create an empty MCSymbol");
+
+ // If any of the characters in the string is an unacceptable character, force
+ // quotes.
+ for (unsigned i = 0, e = Str.size(); i != e; ++i)
+ if (!isAcceptableChar(Str[i]))
+ return true;
+ return false;
+}
+
+void MCSymbol::print(raw_ostream &OS) const {
+ // The name for this MCSymbol is required to be a valid target name. However,
+ // some targets support quoting names with funny characters. If the name
+ // contains a funny character, then print it quoted.
+ if (!NameNeedsQuoting(getName())) {
+ OS << getName();
+ return;
+ }
+
+ OS << '"' << getName() << '"';
+}
+
+void MCSymbol::dump() const {
+ print(dbgs());
+}