1 files changed, 67 insertions, 0 deletions
diff --git a/contrib/llvm/lib/MC/MCSymbol.cpp b/contrib/llvm/lib/MC/MCSymbol.cpp
new file mode 100644
index 0000000..07751f7
--- /dev/null
+++ b/contrib/llvm/lib/MC/MCSymbol.cpp
@@ -0,0 +1,67 @@
+//===- 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/MC/MCExpr.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::setVariableValue(const MCExpr *Value) {
+  assert(Value && "Invalid variable value!");
+  assert((isUndefined() || (isAbsolute() && isa<MCConstantExpr>(Value))) &&
+         "Invalid redefinition!");
+  this->Value = Value;
+
+  // Mark the variable as absolute as appropriate.
+  if (isa<MCConstantExpr>(Value))
+    setAbsolute();
+}
+
+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());
+}