Revert r308329: llvm: add llvm-dlltool support to the archiver

This reverts commit r308329 because it broke buildbots.

llvm-svn: 308374

llvm/lib/Object/COFFModuleDefinition.cpp

@@ -55,10 +55,8 @@ struct Token {
   StringRef Value;
 };
 
-static bool isDecorated(StringRef Sym, bool MingwDef) {
-  // mingw does not prepend "_".
-  return (!MingwDef && Sym.startswith("_")) || Sym.startswith("@") ||
-         Sym.startswith("?");
+static bool isDecorated(StringRef Sym) {
+  return Sym.startswith("_") || Sym.startswith("@") || Sym.startswith("?");
 }
 
 static Error createError(const Twine &Err) {
@@ -85,9 +83,6 @@ public:
     }
     case '=':
       Buf = Buf.drop_front();
-      // GNU dlltool accepts both = and ==.
-      if (Buf.startswith("="))
-        Buf = Buf.drop_front();
       return Token(Equal, "=");
     case ',':
       Buf = Buf.drop_front();
@@ -125,8 +120,7 @@ private:
 
 class Parser {
 public:
-  explicit Parser(StringRef S, MachineTypes M, bool B)
-      : Lex(S), Machine(M), MingwDef(B) {}
+  explicit Parser(StringRef S, MachineTypes M) : Lex(S), Machine(M) {}
 
   Expected<COFFModuleDefinition> parse() {
     do {
@@ -219,9 +213,9 @@ private:
     }
 
     if (Machine == IMAGE_FILE_MACHINE_I386) {
-      if (!isDecorated(E.Name, MingwDef))
+      if (!isDecorated(E.Name))
         E.Name = (std::string("_").append(E.Name));
-      if (!E.ExtName.empty() && !isDecorated(E.ExtName, MingwDef))
+      if (!E.ExtName.empty() && !isDecorated(E.ExtName))
         E.ExtName = (std::string("_").append(E.ExtName));
     }
 
@@ -314,13 +308,11 @@ private:
   std::vector<Token> Stack;
   MachineTypes Machine;
   COFFModuleDefinition Info;
-  bool MingwDef;
 };
 
 Expected<COFFModuleDefinition> parseCOFFModuleDefinition(MemoryBufferRef MB,
-                                                         MachineTypes Machine,
-                                                         bool MingwDef) {
-  return Parser(MB.getBuffer(), Machine, MingwDef).parse();
+                                                         MachineTypes Machine) {
+  return Parser(MB.getBuffer(), Machine).parse();
 }
 
 } // namespace object