[Bug target/86763] [8/9 Regression] Wrong code comparing member of copy of a 237 byte object with nontrivial default constructor on x86-64 arch

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86763

Marc Glisse <glisse at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2018-07-31
            Summary|Wrong code comparing member |[8/9 Regression] Wrong code
                   |of copy of a 237 byte       |comparing member of copy of
                   |object with nontrivial      |a 237 byte object with
                   |default constructor on      |nontrivial default
                   |x86-64 arch                 |constructor on x86-64 arch
     Ever confirmed|0                           |1

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
gimple is the same for -O vs -O2, so the issue is either RTL or target.