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.