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Fix custom target lowering for zero/any/sign_extend: make sure that

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DAG.UpdateNodeOperands() is called before (not after) the call to
TLI.LowerOperation().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50461 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Scott Michel 2008-04-30 00:26:38 +00:00
parent 7b251e0474
commit 82747a5484
1 changed files with 3 additions and 5 deletions
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8
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -3874,14 +3874,12 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
case Expand: assert(0 && "Shouldn't need to expand other operators here!");
case Legal:
Tmp1 = LegalizeOp(Node->getOperand(0));
Result = DAG.UpdateNodeOperands(Result, Tmp1);
if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) ==
TargetLowering::Custom) {
Tmp2 = TLI.LowerOperation(Result, DAG);
if (Tmp2.Val) {
Tmp1 = Tmp2;
}
Tmp1 = TLI.LowerOperation(Result, DAG);
if (Tmp1.Val) Result = Tmp1;
}
Result = DAG.UpdateNodeOperands(Result, Tmp1);
break;
case Promote:
switch (Node->getOpcode()) {