[Bug bootstrap/61763] [4.9 Regression] bootstrap with -O3 gives comparison failure

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61763

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-11-09
                 CC|                            |fxcoudert at gcc dot gnu.org
            Summary|[4.9 Regression] gcc-4.9.0  |[4.9 Regression] bootstrap
                   |4.9.1 "Bootstrap comparison |with -O3 gives comparison
                   |failure!" when              |failure
                   |bootstrapping with -O3      |
     Ever confirmed|0                           |1

--- Comment #7 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
I'm not sure what we want to do here… on one hand, bootstrapping with -O3 is
asking for trouble, but on the other hand I'm not sure it's explicitly
unsupported.