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Port the fix for the select operator from instcombine's

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ComputeNumSignBits to SelectionDAG's ComputeNumSignBits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51348 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-05-20 20:59:51 +00:00
parent 1fdfa6aabf
commit c84941be0a
1 changed files with 2 additions and 2 deletions
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4
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -1690,9 +1690,9 @@ unsigned SelectionDAG::ComputeNumSignBits(SDOperand Op, unsigned Depth) const{
return std::min(Tmp, Tmp2);
case ISD::SELECT:
Tmp = ComputeNumSignBits(Op.getOperand(0), Depth+1);
Tmp = ComputeNumSignBits(Op.getOperand(1), Depth+1);
if (Tmp == 1) return 1; // Early out.
Tmp2 = ComputeNumSignBits(Op.getOperand(1), Depth+1);
Tmp2 = ComputeNumSignBits(Op.getOperand(2), Depth+1);
return std::min(Tmp, Tmp2);
case ISD::SETCC: