[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


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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