[LLVMbugs] [Bug 14985] Be more careful about vectorizing divs.
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Sat Apr 26 08:00:52 PDT 2014
http://llvm.org/bugs/show_bug.cgi?id=14985
Benjamin Kramer <benny.kra at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Benjamin Kramer <benny.kra at gmail.com> ---
The really high cost for div was added a while ago. We also know how to lower
vector div by constant efficiently on x86 now.
The example loop gets vectorized nicely with trunk (except for some
over-unrolling, but that's a different issue)
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