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FIX PR7158. SimplifyVBinOp was asserting when it fails to constant fold (op (build_vector), (build_vector)).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104004 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2010-05-18 00:03:40 +00:00
parent 535af4a320
commit a083988c8a
2 changed files with 25 additions and 7 deletions
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15
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@@ -6344,13 +6344,14 @@ SDValue DAGCombiner::SimplifyVBinOp(SDNode *N) {
break;
}
Ops.push_back(DAG.getNode(N->getOpcode(), LHS.getDebugLoc(),
EltType, LHSOp, RHSOp));
AddToWorkList(Ops.back().getNode());
assert((Ops.back().getOpcode() == ISD::UNDEF ||
Ops.back().getOpcode() == ISD::Constant ||
Ops.back().getOpcode() == ISD::ConstantFP) &&
"Scalar binop didn't fold!");
SDValue FoldOp = DAG.getNode(N->getOpcode(), LHS.getDebugLoc(), EltType,
LHSOp, RHSOp);
if (FoldOp.getOpcode() != ISD::UNDEF &&
FoldOp.getOpcode() != ISD::Constant &&
FoldOp.getOpcode() != ISD::ConstantFP)
break;
Ops.push_back(FoldOp);
AddToWorkList(FoldOp.getNode());
}
if (Ops.size() == LHS.getNumOperands()) {