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[Bug c++/80561] Missed optimization: std::array data is aligned if array is aligned
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 02 May 2017 08:27:29 +0000
- Subject: [Bug c++/80561] Missed optimization: std::array data is aligned if array is aligned
- Auto-submitted: auto-generated
- References: <bug-80561-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80561
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2017-05-02
Blocks| |53947
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
Known to fail| |7.1.0
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. It's odd, the alignment information seems to be present but the
vectorizer somehow ignores it. I'll have a look.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations