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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/99411] s311, s312, s31111, s31111, s3110,
 vsumr benchmark of TSVC is vectorized by clang better than by gcc
Date: Mon, 08 Mar 2021 08:24:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99411

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |53947
           Keywords|                            |missed-optimization
          Component|middle-end                  |tree-optimization

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
So clang uses a larger VF (unroll of the vectorized loop) here.  I think we
have another PR about this.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations=