https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81155
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-14
CC| |hjl at gcc dot gnu.org,
| |hubicka at gcc dot gnu.org
Target Milestone|--- |8.0
Summary|Debug make check |[8 Regression] Debug make
|regressions in GCC 8.0 |check regressions in GCC
| |8.0
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, confirmed. Before Honzas change flag_split_stack was -1 (aka default which
is supposed to mean 'off' if the target doesn't override that). That caused
reorder-and-partition to be disabled if not explicitely enabled.
The new guality FAILs happen for all option flags, not just LTO (this was what
confused me).
FAIL: gcc.dg/guality/pr45882.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects line 16 d == 112
FAIL: gcc.dg/guality/pr45882.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects line 16 e == 142
is present even before the change.
Adding -fno-reorder-blocks-and-partition to the test fixes things but I wonder
what causes the debug info to degrade (or gdb to barf). I think HJs pending
patch in this area might fix things?
