Add support for other relocation bases to jump tables, as well as custom asm directives

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30593 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/SelectionDAGNodes.h

@@ -82,6 +82,9 @@ namespace ISD {
     Constant, ConstantFP,
     GlobalAddress, FrameIndex, JumpTable, ConstantPool, ExternalSymbol,
 
+    // The relocation value to add to the value loaded from a jump table
+    JumpTableRelocBase,
+
     // TargetConstant* - Like Constant*, but the DAG does not do any folding or
     // simplification of the constant.
     TargetConstant,