[Bug middle-end/64545] New: failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[Bug middle-end/64545] New: failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[mikulas at artax dot karlin.mff.cuni.cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

            Bug ID: 64545
           Summary: failed gcc build: internal compiler error: in
                    inline_small_functions, at ipa-inline.c:1693
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mikulas at artax dot karlin.mff.cuni.cz
              Host: x86_64-unknown-linux-gnu
            Target: x86_64-unknown-linux-gnu
             Build: x86_64-unknown-linux-gnu

Created attachment 34408
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34408&action=edit
failed build log

ICE when building gcc revision r219330 on Debian Wheezy. Build script:

CFLAGS="-O2 -march=barcelona -fomit-frame-pointer"
export CFLAGS
CXXFLAGS="$CFLAGS"
export CXXFLAGS
MAKEFLAGS=-j12
export MAKEFLAGS
../gcc-svn/configure                                                    \
        --prefix=/usr/local/gcc-svn/                                    \
        --enable-lto                                                    \
        --with-system-zlib                                              \
        --enable-languages=c                                            \
        --enable-multilib                                               \
        --with-multilib-list=m32,m64                                    \
        --disable-werror                                                \
        --enable-checking=yes                                           \
        &&
nice -n 20 make BOOT_CFLAGS="$CFLAGS" profiledbootstrap

[Bug middle-end/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[mikulas at artax dot karlin.mff.cuni.cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

--- Comment #1 from mikulas at artax dot karlin.mff.cuni.cz ---
It is caused by profiledbootstrap, when I change it to boostrap, the build
succeeds.

[Bug middle-end/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Could be a dup of PR 63967.

[Bug ipa/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
1653       int old_hints_est = estimate_edge_hints (edge); 

old_hints_est = 288 
estimate_edge_hints (edge) = 32

[Bug ipa/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
1660       gcc_assert (old_hints_est == estimate_edge_hints (edge));

[Bug ipa/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Hmm, that is same_scc hint. It would be great to have smaller testcase. I will
look into that tomorrow morning.

Honza

[Bug ipa/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com

--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
Also breaks profiledbootstrap autotester [1].

[1] https://gcc.gnu.org/ml/gcc-regression/2015-01/msg00258.html
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Subject: [Bug debug/64511] [5 Regression] ICE at -O3 with -g enabled on x86_64-linux-gnu
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd511

--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> ---
On Tue, 13 Jan 2015, jakub at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?idd511
>
> Jakub Jelinek <jakub at gcc dot gnu.org> changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |jakub at gcc dot gnu.org
>
> --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> x % x for x == 0 is undefined behavior, so perhaps with the exception of
> sanitization we can just assume it is not 0 and thus fold x % x to 0.
> Or does e.g. Ada/Java require something different?

See the inconsistent handing of % vs. / in fold (we fold 0 % x to 0
but preserve literal 0 % 0 - we don't fold 0 / x to 0).

In my view we should just go ahead and fold, though with
-fnon-call-exceptions one may do

 try {
  x % x
  abort ();
 } catch (...) {
 }

and throw from inside a trap handler.  Which means that one can
catch undefined behavior.  IMHO -fnon-call-exceptions and sub-flags
like -ftrapv tell GCC to treat the specific undefined behavior as
defined - namely trapping.  We don't have a special flag for
divide-by-zero-traps though (it's not exactly "overflow").

So maybe with making the folding more consistent we should simply
add such flag, -fdivide-by-zero-traps which also makes modulo-by-zero
trap?

[Bug ipa/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Curious it happens only with FDO... I am looking into that now.

[Bug ipa/64545] failed gcc build: internal compiler error: in inline_small_functions, at ipa-inline.c:1693

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64545

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|NEW                         |RESOLVED

--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup. been fixed a long time ago.

*** This bug has been marked as a duplicate of bug 64565 ***