[Bug tree-optimization/96208] non-power-of-2 group size can be vectorized for 2-element vectors case

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Jul 17 06:44:14 GMT 2020


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

           What    |Removed                     |Added
                 CC|                            |rguenth at gcc dot gnu.org
            Version|unknown                     |11.0
             Blocks|                            |53947
           Keywords|                            |missed-optimization

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note the code path you are changing will go away and "improving" it puts burden
onto the replacement implementation ...

The testcase suggests the issue is missing SLP support for the not grouped
load of *k, something I've been looking at recently.

Referenced Bugs:

[Bug 53947] [meta-bug] vectorizer missed-optimizations

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