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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109029] __builtin_signbit for 64bit fp does
 not vectorize
Date: Sun, 05 Mar 2023 19:18:05 +0000
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X-Bugzilla-Component: tree-optimization
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X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109029

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
             Blocks|                            |53947
            Summary|std::signbit(double)        |__builtin_signbit for 64bit
                   |generates very inefficient  |fp does not vectorize
                   |code                        |
          Component|target                      |tree-optimization
   Last reconfirmed|                            |2023-03-05
     Ever confirmed|0                           |1

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
missed:   mismatched vector sizes const vector(2) double and vector(2) int


Referenced Bugs:

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