Support Custom lowering of a few more operations.
Alpha needs to custom lower *DIV and *REM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index af1d476..1d68419 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -537,6 +537,7 @@
case ISD::GlobalAddress:
case ISD::TargetGlobalAddress:
case ISD::ExternalSymbol:
+ case ISD::TargetExternalSymbol:
case ISD::ConstantPool: // Nothing to do.
case ISD::BasicBlock:
case ISD::CONDCODE:
@@ -1954,9 +1955,25 @@
Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS.
break;
}
- if (Tmp1 != Node->getOperand(0) ||
- Tmp2 != Node->getOperand(1))
- Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1,Tmp2);
+ switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) {
+ case TargetLowering::Legal:
+ if (Tmp1 != Node->getOperand(0) ||
+ Tmp2 != Node->getOperand(1))
+ Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1,Tmp2);
+ break;
+ case TargetLowering::Custom: {
+ Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1, Tmp2);
+ SDOperand Tmp = TLI.LowerOperation(Result, DAG);
+ if (Tmp.Val) {
+ Tmp = LegalizeOp(Tmp); // Relegalize input.
+ AddLegalizedOperand(Op, Tmp);
+ return Tmp;
+ }
+ break;
+ }
+ default:
+ assert(0 && "Operation not supported");
+ }
break;
case ISD::BUILD_PAIR: {
@@ -1997,8 +2014,17 @@
Tmp2);
break;
case TargetLowering::Promote:
- case TargetLowering::Custom:
- assert(0 && "Cannot promote/custom handle this yet!");
+ assert(0 && "Cannot promote handle this yet!");
+ case TargetLowering::Custom: {
+ Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1, Tmp2);
+ SDOperand Tmp = TLI.LowerOperation(Result, DAG);
+ if (Tmp.Val) {
+ Tmp = LegalizeOp(Tmp); // Relegalize input.
+ AddLegalizedOperand(Op, Tmp);
+ return Tmp;
+ }
+ break;
+ }
case TargetLowering::Expand:
if (MVT::isInteger(Node->getValueType(0))) {
MVT::ValueType VT = Node->getValueType(0);