https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78985
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to rguent...@suse.de from comment #4) > On Fri, 20 Jan 2017, marxin at gcc dot gnu.org wrote: > > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78985 > > > > Martin Liška <marxin at gcc dot gnu.org> changed: > > > > What |Removed |Added > > ---------------------------------------------------------------------------- > > Status|UNCONFIRMED |NEW > > Last reconfirmed| |2017-01-20 > > Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot > > gnu.org > > Ever confirmed|0 |1 > > > > --- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> --- > > I'll try to bisect that, on aarch64 machine I see: > > > > ../../gcc/config/aarch64/cortex-a57-fma-steering.c: In member function ‘void > > func_fma_steering::analyze()’: > > ../../gcc/config/aarch64/cortex-a57-fma-steering.c:979:53: error: ‘head’ > > may be > > used uninitialized in this function [-Werror=maybe-uninitialized] > > this->analyze_fma_fmul_insn (forest, chain, head); > > ^ > > ../../gcc/config/aarch64/cortex-a57-fma-steering.c:979:53: error: ‘forest’ > > may > > be used uninitialized in this function [-Werror=maybe-uninitialized] > > ../../gcc/config/aarch64/cortex-a57-fma-steering.c:979:53: error: ‘chain’ > > may > > be used uninitialized in this function [-Werror=maybe-uninitialized] > > > > I'll try to bisect.. > > Yes, aarch64 has a similar issue. This is aarch64 machine :) Do you remember whether profiledbootstrap used to succeed (for bisect start)?
