Jimptables working again on alpha.

As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 7 insertions, 13 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index d6b07a0f1b..b7262d653f 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -534,6 +534,7 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
   case ISD::SRCVALUE:
   case ISD::STRING:
   case ISD::CONDCODE:
+  case ISD::GLOBAL_OFFSET_TABLE:
     // Primitives must all be legal.
     assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) &&
            "This must be legal!");
@@ -558,17 +559,6 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
 #endif
     assert(0 && "Do not know how to legalize this operator!");
     abort();
-  case ISD::JumpTableRelocBase:
-    switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) {
-    case TargetLowering::Custom:
-      Tmp1 = TLI.LowerOperation(Op, DAG);
-      if (Tmp1.Val) Result = Tmp1;
-      break;
-    default:
-      Result = LegalizeOp(Node->getOperand(0));
-      break;
-    }
-    break;
   case ISD::GlobalAddress:
   case ISD::ExternalSymbol:
   case ISD::ConstantPool:
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 895ae47f99..f2e14231d4 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2454,7 +2454,7 @@ const char *SDNode::getOperationName(const SelectionDAG *G) const {
   case ISD::GlobalAddress: return "GlobalAddress";
   case ISD::FrameIndex:    return "FrameIndex";
   case ISD::JumpTable:     return "JumpTable";
-  case ISD::JumpTableRelocBase: return "JumpTableRelocBase";
+  case ISD::GLOBAL_OFFSET_TABLE: return "GLOBAL_OFFSET_TABLE";
   case ISD::ConstantPool:  return "ConstantPool";
   case ISD::ExternalSymbol: return "ExternalSymbol";
   case ISD::INTRINSIC_WO_CHAIN: {
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index cbe55109f4..ee4a0ea713 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -864,7 +864,11 @@ void SelectionDAGLowering::visitJumpTable(SelectionDAGISel::JumpTable &JT) {
     // For Pic, the sequence is:
     // BRIND(load(Jumptable + index) + RelocBase)
     // RelocBase is the JumpTable on PPC and X86, GOT on Alpha
-    SDOperand Reloc = DAG.getNode(ISD::JumpTableRelocBase, PTy, TAB);
+    SDOperand Reloc;
+    if (TLI.usesGlobalOffsetTable())
+      Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy);
+    else
+      Reloc = TAB;
     ADD = DAG.getNode(ISD::ADD, PTy,
         ((PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD), Reloc);
     DAG.setRoot(DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), ADD));