[Bug lto/82229] GCC7's LTO underperforms compared to GCC6

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82229

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |lto, missed-optimization
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2017-09-18
     Ever confirmed|0                           |1

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
I suspect changes in cross-module inlining causing the issue.  Without some
analysis from your side it's really hard to do anything about this.  A good
start is to do some profiling.