[Bug target/63681] bfin-rtems ICE in cfg_layout_initialize, at cfgrtl.c:4233

[Bug target/63681] bfin-rtems ICE in cfg_layout_initialize, at cfgrtl.c:4233

[yselkowi at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63681

--- Comment #3 from Yaakov Selkowitz <yselkowi at redhat dot com> ---
I'm seeing an ICE in the same code on the tic6x-elf target as well.

[Bug target/63681] ICE in cfg_layout_initialize, at cfgrtl.c:4233

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63681

--- Comment #4 from Joel Sherrill <joel at gcc dot gnu.org> ---
Since this happens on two target architectures, could someone look at it enough
to put it in the right component. It could be the same type of defect on two
different targets but it could also be a more generic problem.

Thanks.

[Bug target/63681] ICE in cfg_layout_initialize, at cfgrtl.c:4233

[mikpelinux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63681

--- Comment #5 from Mikael Pettersson <mikpelinux at gmail dot com> ---
The ICE on bfin-elf started for 4.9 with r204985, and stopped for 5.0 with
r210683.  Backporting r210683 to current 4.9 branch is easy and fixes the ICE
there too.  I haven't checked c6x.

See also:
https://gcc.gnu.org/ml/gcc-patches/2014-01/msg00006.html
https://gcc.gnu.org/ml/gcc-patches/2014-05/msg01725.html

[Bug target/63681] ICE in cfg_layout_initialize, at cfgrtl.c:4233

[yselkowi at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63681

--- Comment #6 from Yaakov Selkowitz <yselkowi at redhat dot com> ---
(In reply to Mikael Pettersson from comment #5)
> The ICE on bfin-elf started for 4.9 with r204985, and stopped for 5.0 with
> r210683.  Backporting r210683 to current 4.9 branch is easy and fixes the
> ICE there too.  I haven't checked c6x.

r210683 fixes this particular issue in 4.9.2 for both bfin-elf and tic6x-elf. 
(There is another, seemingly unrelated issue with the latter, see bug 64451.) 
Any chance this could get into 4.9.3?

[Bug target/63681] ICE in cfg_layout_initialize, at cfgrtl.c:4233

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63681

--- Comment #7 from Joel Sherrill <joel at gcc dot gnu.org> ---
(In reply to Yaakov Selkowitz from comment #6)
> (In reply to Mikael Pettersson from comment #5)
> > The ICE on bfin-elf started for 4.9 with r204985, and stopped for 5.0 with
> > r210683.  Backporting r210683 to current 4.9 branch is easy and fixes the
> > ICE there too.  I haven't checked c6x.
> 
> r210683 fixes this particular issue in 4.9.2 for both bfin-elf and
> tic6x-elf.  (There is another, seemingly unrelated issue with the latter,
> see bug 64451.)  Any chance this could get into 4.9.3?

r210683 was by Bernd Schmidt. I added him to this PR.

Bernd... how about applying that fix to the 4.9 branch please so we can close
this PR?

Thanks.

[Bug target/63681] ICE in cfg_layout_initialize, at cfgrtl.c:4233

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63681

--- Comment #8 from Joel Sherrill <joel at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Did it work with 4.9.1?

No. Based on "git checkout gcc-4_9_1-release"

Ditto for 4.9.0.

Hopefully the recommended patch can be applied to the 4.9 branch.