several major improvements to the sparc backend: support for weak linkage
and PIC codegen.  Patch by Venkatraman Govindaraju!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81877 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcISelLowering.h b/lib/Target/Sparc/SparcISelLowering.h
index 2d63d26..64b703c 100644
--- a/lib/Target/Sparc/SparcISelLowering.h
+++ b/lib/Target/Sparc/SparcISelLowering.h
@@ -35,7 +35,8 @@
       ITOF,        // Int to FP within a FP register.
 
       CALL,        // A call instruction.
-      RET_FLAG     // Return with a flag operand.
+      RET_FLAG,    // Return with a flag operand.
+      GLOBAL_BASE_REG // Global base reg for PIC
     };
   }
 
@@ -96,6 +97,9 @@
                   CallingConv::ID CallConv, bool isVarArg,
                   const SmallVectorImpl<ISD::OutputArg> &Outs,
                   DebugLoc dl, SelectionDAG &DAG);
+
+    SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
+    SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG);
   };
 } // end namespace llvm