Enabling the target-independent garbage collection infrastructure by hooking it

up to the various compiler pipelines.

This doesn't actually add support for any GC algorithms, which means it 
temporarily breaks a few tests. To be fixed shortly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45669 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/AsmPrinter.h

@@ -118,6 +118,10 @@ namespace llvm {
     std::string getCurrentFunctionEHName(const MachineFunction *MF);
 
   protected:
+    /// getAnalysisUsage - Record analysis usage.
+    /// 
+    void getAnalysisUsage(AnalysisUsage &AU) const;
+    
     /// doInitialization - Set up the AsmPrinter when we are working on a new
     /// module.  If your pass overrides this, it must make sure to explicitly
     /// call this implementation.