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Add some legality checks for SETCC before introducing it in the DAG combiner post-operand legalization.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175149 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2013-02-14 09:07:33 +00:00
parent c8c82dc1cc
commit 39125d9a3a
1 changed files with 6 additions and 2 deletions
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8
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -2634,7 +2634,9 @@ SDValue DAGCombiner::visitAND(SDNode *N) {
ISD::CondCode Result = ISD::getSetCCAndOperation(Op0, Op1, isInteger);
if (Result != ISD::SETCC_INVALID &&
(!LegalOperations ||
TLI.isCondCodeLegal(Result, LL.getSimpleValueType())))
(TLI.isCondCodeLegal(Result, LL.getSimpleValueType()) &&
TLI.isOperationLegal(ISD::SETCC,
TLI.getSetCCResultType(N0.getSimpleValueType())))))
return DAG.getSetCC(N->getDebugLoc(), N0.getValueType(),
LL, LR, Result);
}
@ -3144,7 +3146,9 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
ISD::CondCode Result = ISD::getSetCCOrOperation(Op0, Op1, isInteger);
if (Result != ISD::SETCC_INVALID &&
(!LegalOperations ||
TLI.isCondCodeLegal(Result, LL.getSimpleValueType())))
(TLI.isCondCodeLegal(Result, LL.getSimpleValueType()) &&
TLI.isOperationLegal(ISD::SETCC,
TLI.getSetCCResultType(N0.getValueType())))))
return DAG.getSetCC(N->getDebugLoc(), N0.getValueType(),
LL, LR, Result);
}