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fix expansion of ct[lt]z nodes 

llvm-svn: 21896
This commit is contained in:
Chris Lattner 2005-05-12 19:27:51 +00:00
parent cf5f6b0ccb
commit 0bfd177e89
1 changed files with 2 additions and 0 deletions
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2
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -2287,6 +2287,7 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
case ISD::CTLZ: {
// ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32)
ExpandOp(Node->getOperand(0), Lo, Hi);
SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT);
SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi);
SDOperand TopNotZero = DAG.getSetCC(ISD::SETNE, TLI.getSetCCResultTy(),
@ -2301,6 +2302,7 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
case ISD::CTTZ: {
// cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32)
ExpandOp(Node->getOperand(0), Lo, Hi);
SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT);
SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo);
SDOperand BotNotZero = DAG.getSetCC(ISD::SETNE, TLI.getSetCCResultTy(),