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Commit dbe2bdf9 authored by Andrew Trick's avatar Andrew Trick
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Indvars: guard against exponential behavior in isHighCostExpansion. 

This should always be done as a matter of principal. I don't have a
case that exposes the problem. I just noticed this recently while
scanning the code and realized I meant to fix it long ago.

llvm-svn: 146438
parent e29ffffa
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