stub out a new target hook, need some refactoring before I can

implement it.

llvm-svn: 94521

llvm/include/llvm/Target/TargetLowering.h

@@ -772,6 +772,13 @@ public:
   virtual SDValue getPICJumpTableRelocBase(SDValue Table,
                                            SelectionDAG &DAG) const;
 
+  /// getPICJumpTableRelocBaseExpr - This returns the relocation base for the
+  /// given PIC jumptable, the same as getPICJumpTableRelocBase, but as an
+  /// MCExpr.
+  virtual const MCExpr *
+  getPICJumpTableRelocBaseExpr(const MachineJumpTableInfo *MJTI,
+                               unsigned JTI, MCContext &Ctx) const;
+  
   /// isOffsetFoldingLegal - Return true if folding a constant offset
   /// with the given GlobalAddress is legal.  It is frequently not legal in
   /// PIC relocation models.

llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp

@@ -817,6 +817,17 @@ SDValue TargetLowering::getPICJumpTableRelocBase(SDValue Table,
   return Table;
 }
 
+/// getPICJumpTableRelocBaseExpr - This returns the relocation base for the
+/// given PIC jumptable, the same as getPICJumpTableRelocBase, but as an
+/// MCExpr.
+const MCExpr *
+TargetLowering::getPICJumpTableRelocBaseExpr(const MachineJumpTableInfo *MJTI,
+                                             unsigned JTI,
+                                             MCContext &Ctx) const {
+  assert(0 && "FIXME: IMPLEMENT ME");
+}
+
+
 bool
 TargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
   // Assume that everything is safe in static mode.