Dan Gohman a7a841adb8 When decling to reuse existing expressions that involve casts, ignore ...

bitcasts, which are really no-ops here. This fixes slowdowns on
MultiSource/Applications/aha and others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127031 91177308-0d34-0410-b5e6-96231b3b80d8

2011-03-04 20:46:46 +00:00

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