[Bug target/81456] [7/8 Regression] x86-64 optimizer makes wrong decision when optimizing for size

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81456

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-07-17
                 CC|                            |jgreenhalgh at gcc dot gnu.org,
                   |                            |marxin at gcc dot gnu.org
      Known to work|                            |6.4.0
            Summary|x86-64 optimizer makes      |[7/8 Regression] x86-64
                   |wrong decision when         |optimizer makes wrong
                   |optimizing for size         |decision when optimizing
                   |                            |for size
     Ever confirmed|0                           |1
      Known to fail|                            |7.1.0, 8.0

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with r238594.