Teach legalize how to handle condbranches
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19339 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 748ad3f..c8369aa 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -305,6 +305,16 @@
}
break;
+ case ISD::BRCOND:
+ Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
+ // FIXME: booleans might not be legal!
+ Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition.
+ // Basic block destination (Op#2) is always legal.
+ if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1))
+ Result = DAG.getNode(ISD::BRCOND, MVT::Other, Tmp1, Tmp2,
+ Node->getOperand(2));
+ break;
+
case ISD::LOAD:
Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer.