Add X86 instruction printer support for printing MCValue operands.

[oota-llvm.git] / lib / VMCore / Mangler.cpp

diff --git a/lib/VMCore/Mangler.cpp b/lib/VMCore/Mangler.cpp
index a01f0f1540e0282f99a20d74ba00d3503b42f372..44cf77826629546e4c35d25d9c92824ed575ad56 100644 (file)
--- a/lib/VMCore/Mangler.cpp
+++ b/lib/VMCore/Mangler.cpp
@@ -31,13 +31,9 @@ static std::string MangleLetter(unsigned char C) {
 /// makeNameProper - We don't want identifier names non-C-identifier characters
 /// in them, so mangle them as appropriate.
 ///
-std::string Mangler::makeNameProper(const std::string &X, const char *Prefix,
-                                    const char *PrivatePrefix) {
-  if (X.empty()) return X;  // Empty names are uniqued by the caller.
-  
-  // If PreserveAsmNames is set, names with asm identifiers are not modified. 
-  if (PreserveAsmNames && X[0] == 1)
-    return X;
+std::string Mangler::makeNameProper(const std::string &X,
+                                    ManglerPrefixTy PrefixTy) {
+  assert(!X.empty() && "Cannot mangle empty strings");
   
   if (!UseQuotes) {
     std::string Result;
@@ -62,11 +58,14 @@ std::string Mangler::makeNameProper(const std::string &X, const char *Prefix,
     }
 
     if (NeedPrefix) {
-      if (Prefix)
-        Result = Prefix + Result;
-      if (PrivatePrefix)
+      Result = Prefix + Result;
+
+      if (PrefixTy == Mangler::Private)
         Result = PrivatePrefix + Result;
+      else if (PrefixTy == Mangler::LinkerPrivate)
+        Result = LinkerPrivatePrefix + Result;
     }
+
     return Result;
   }
 
@@ -94,17 +93,20 @@ std::string Mangler::makeNameProper(const std::string &X, const char *Prefix,
     
   // In the common case, we don't need quotes.  Handle this quickly.
   if (!NeedQuotes) {
-    if (NeedPrefix) {
-      if (Prefix)
-        Result = Prefix + X;
-      else
-        Result = X;
-      if (PrivatePrefix)
-        Result = PrivatePrefix + Result;
-      return Result;
-    } else
-      return X.substr(1);
+    if (!NeedPrefix)
+      return X.substr(1);   // Strip off the \001.
+    
+    Result = Prefix + X;
+
+    if (PrefixTy == Mangler::Private)
+      Result = PrivatePrefix + Result;
+    else if (PrefixTy == Mangler::LinkerPrivate)
+      Result = LinkerPrivatePrefix + Result;
+
+    return Result;
   }
+  
+  Result = X.substr(0, I-X.begin());
     
   // Otherwise, construct the string the expensive way.
   for (std::string::const_iterator E = X.end(); I != E; ++I) {
@@ -117,26 +119,34 @@ std::string Mangler::makeNameProper(const std::string &X, const char *Prefix,
   }
 
   if (NeedPrefix) {
-    if (Prefix)
-      Result = Prefix + X;
-    else
-      Result = X;
-    if (PrivatePrefix)
+    Result = Prefix + Result;
+
+    if (PrefixTy == Mangler::Private)
       Result = PrivatePrefix + Result;
+    else if (PrefixTy == Mangler::LinkerPrivate)
+      Result = LinkerPrivatePrefix + Result;
   }
+
   Result = '"' + Result + '"';
   return Result;
 }
 
-std::string Mangler::getValueName(const GlobalValue *GV, const char *Suffix) {
+/// getMangledName - Returns the mangled name of V, an LLVM Value,
+/// in the current module.  If 'Suffix' is specified, the name ends with the
+/// specified suffix.  If 'ForcePrivate' is specified, the label is specified
+/// to have a private label prefix.
+///
+std::string Mangler::getMangledName(const GlobalValue *GV, const char *Suffix,
+                                    bool ForcePrivate) {
   assert((!isa<Function>(GV) || !cast<Function>(GV)->isIntrinsic()) &&
          "Intrinsic functions cannot be mangled by Mangler");
-  
-  if (GV->hasName()) {
-    if (GV->hasPrivateLinkage())
-      return makeNameProper(GV->getName() + Suffix, Prefix, PrivatePrefix);
-    return makeNameProper(GV->getName() + Suffix, Prefix);
-  }
+
+  ManglerPrefixTy PrefixTy =
+    (GV->hasPrivateLinkage() || ForcePrivate) ? Mangler::Private :
+      GV->hasLinkerPrivateLinkage() ? Mangler::LinkerPrivate : Mangler::Default;
+
+  if (GV->hasName())
+    return makeNameProper(GV->getNameStr() + Suffix, PrefixTy);
   
   // Get the ID for the global, assigning a new one if we haven't got one
   // already.
@@ -144,12 +154,14 @@ std::string Mangler::getValueName(const GlobalValue *GV, const char *Suffix) {
   if (ID == 0) ID = NextAnonGlobalID++;
   
   // Must mangle the global into a unique ID.
-  return "__unnamed_" + utostr(ID) + Suffix;
+  return makeNameProper("__unnamed_" + utostr(ID) + Suffix, PrefixTy);
 }
 
-Mangler::Mangler(Module &M, const char *prefix, const char *privatePrefix)
-  : Prefix(prefix), PrivatePrefix (privatePrefix), UseQuotes(false),
-    PreserveAsmNames(false), NextAnonGlobalID(1) {
+Mangler::Mangler(Module &M, const char *prefix, const char *privatePrefix,
+                 const char *linkerPrivatePrefix)
+  : Prefix(prefix), PrivatePrefix(privatePrefix),
+    LinkerPrivatePrefix(linkerPrivatePrefix), UseQuotes(false),
+    NextAnonGlobalID(1) {
   std::fill(AcceptableChars, array_endof(AcceptableChars), 0);
 
   // Letters and numbers are acceptable.