http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61047
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu.org
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Note how the load at insn 28 is guarded by comparing ax against #2837. CE3
> transforms that into an unconditional load and we blow up reading the
> out-of-range stack slot.
>
> This isn't a threading issue, but a latent bug in CE as far as I can tell.
Right, see PR rtl-optimization/60452 for an earlier example. IMO a pretty
useless series of artificial testcases...