https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69393
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2016-01-21
CC| |rguenth at gcc dot gnu.org
Target Milestone|--- |6.0
Summary|ICE in dwarf2out_finish, at |[6 Regression] ICE in
|dwarf2out.c:27175 with LTO |dwarf2out_finish, at
| |dwarf2out.c:27175 with LTO
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Sounds possibly related to PR69137 as that has changes to deferred_asm_name
creation points (you can try confirming this by reverting the change).
You reduce the testcase by adding -r -nostdlib to the link line and "bisect"
the object files needed to trigger the bug. If -flto-partition=1to1 reproduces
the bug as well then do the reduction with that option active. Then if you
reached a minimal set substitute preprocessed source for the object file inputs
and attach those (those you can then reduce further if you like).
Thus waiting for a testcase.