fix the sparc codegen to not depend on the sparc asmprinter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73767 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcTargetMachine.h b/lib/Target/Sparc/SparcTargetMachine.h
index 40b44f2..8afcc73 100644
--- a/lib/Target/Sparc/SparcTargetMachine.h
+++ b/lib/Target/Sparc/SparcTargetMachine.h
@@ -35,6 +35,14 @@
 protected:
   virtual const TargetAsmInfo *createTargetAsmInfo() const;
   
+  // To avoid having target depend on the asmprinter stuff libraries, asmprinter
+  // set this functions to ctor pointer at startup time if they are linked in.
+  typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
+                                            TargetMachine &tm,
+                                            CodeGenOpt::Level OptLevel,
+                                            bool verbose);
+  static AsmPrinterCtorFn AsmPrinterCtor;
+  
 public:
   SparcTargetMachine(const Module &M, const std::string &FS);
 
@@ -56,6 +64,10 @@
   virtual bool addAssemblyEmitter(PassManagerBase &PM,
                                   CodeGenOpt::Level OptLevel,
                                   bool Verbose, raw_ostream &Out);
+  
+  static void registerAsmPrinter(AsmPrinterCtorFn F) {
+    AsmPrinterCtor = F;
+  }
 };
 
 } // end namespace llvm