- Allow custom lowering for CTPOP, CTTZ, CTLZ.
- Fixed an existing unexpanded tab.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40605 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 078cbf3..3ca30dd 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2738,9 +2738,16 @@
case ISD::CTLZ:
Tmp1 = LegalizeOp(Node->getOperand(0)); // Op
switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) {
- case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!");
+ case TargetLowering::Custom:
case TargetLowering::Legal:
Result = DAG.UpdateNodeOperands(Result, Tmp1);
+ if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) ==
+ TargetLowering::Custom) {
+ Tmp1 = TLI.LowerOperation(Result, DAG);
+ if (Tmp1.Val) {
+ Result = Tmp1;
+ }
+ }
break;
case TargetLowering::Promote: {
MVT::ValueType OVT = Tmp1.getValueType();
@@ -2760,7 +2767,7 @@
DAG.getConstant(MVT::getSizeInBits(NVT), NVT),
ISD::SETEQ);
Result = DAG.getNode(ISD::SELECT, NVT, Tmp2,
- DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1);
+ DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1);
break;
case ISD::CTLZ:
// Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT))