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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/99117] [9/10/11 Regression] cannot accumulate
 std::valarray
Date: Tue, 16 Feb 2021 07:43:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99117

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
          Component|c++                         |middle-end
   Last reconfirmed|                            |2021-02-16
   Target Milestone|---                         |9.4
     Ever confirmed|0                           |1
      Known to fail|                            |10.2.1, 11.0
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |7.5.0, 8.4.0
           Keywords|                            |needs-reduction, wrong-code
            Summary|cannot accumulate           |[9/10/11 Regression] cannot
                   |std::valarray               |accumulate std::valarray

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  If I disable SRA it works but I haven't looked closer yet.=