[Bug target/98341] New: [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[Bug target/98341] New: [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

            Bug ID: 98341
           Summary: [11 Regression] Ada bootstrap fails with Storage_Error
                    stack overflow or erroneous memory access on m68k
           Product: gcc
           Version: 11.0
               URL: https://buildd.debian.org/status/fetch.php?pkg=gcc-sna
                    pshot&arch=m68k&ver=1%3A20201214-1&stamp=1608126919&ra
                    w=0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: glaubitz at physik dot fu-berlin.de
  Target Milestone: ---
            Target: m68k-*-*

Bootstrapping Ada works fine with gcc-10, but is broken with gcc-11/trunk:

+===========================GNAT BUG DETECTED==============================+
| 11.0.0 20201214 (experimental) [master revision
cf7efe2d36f:0bf15ad54b9:ab28eac607637a641fbec27c5f6bbe9b6197c80f]
(m68k-linux-gnu) |
| Storage_Error stack overflow or erroneous memory access                  |
| No source file position information available                            |
| Please submit a bug report; see https://gcc.gnu.org/bugs/ .              |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact command that you entered.                              |
| Also include sources listed below.                                       |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

../../src/gcc/ada/gcc-interface/system.ads
../../src/gcc/ada/sem_aggr.adb
../../src/gcc/ada/sem_aggr.ads
../../src/gcc/ada/types.ads
../../src/gcc/ada/libgnat/unchconv.ads
../../src/gcc/ada/libgnat/unchdeal.ads
../../src/gcc/ada/aspects.ads
../../src/gcc/ada/namet.ads
../../src/gcc/ada/alloc.ads
../../src/gcc/ada/hostparm.ads
../../src/gcc/ada/table.ads
ada/snames.ads
../../src/gcc/ada/atree.ads
../../src/gcc/ada/sinfo.ads
../../src/gcc/ada/uintp.ads
../../src/gcc/ada/urealp.ads
../../src/gcc/ada/einfo.ads
../../src/gcc/ada/checks.ads
../../src/gcc/ada/errout.ads
../../src/gcc/ada/err_vars.ads
../../src/gcc/ada/erroutc.ads
../../src/gcc/ada/elists.ads
../../src/gcc/ada/expander.ads
../../src/gcc/ada/exp_ch6.ads
../../src/gcc/ada/exp_tss.ads
../../src/gcc/ada/exp_util.ads
../../src/gcc/ada/rtsfind.ads
../../src/gcc/ada/freeze.ads
../../src/gcc/ada/itypes.ads
../../src/gcc/ada/sem_util.ads
../../src/gcc/ada/opt.ads
../../src/gcc/ada/libgnat/s-string.ads
../../src/gcc/ada/libgnat/ada.ads
../../src/gcc/ada/libgnat/a-uncdea.ads
../../src/gcc/ada/libgnat/s-wchcon.ads
../../src/gcc/ada/lib.ads
../../src/gcc/ada/libgnat/gnat.ads
../../src/gcc/ada/libgnat/g-htable.ads
../../src/gcc/ada/libgnat/s-htable.ads
../../src/gcc/ada/lib-xref.ads
../../src/gcc/ada/spark_xrefs.ads
../../src/gcc/ada/namet-sp.ads
ada/nmake.ads
../../src/gcc/ada/nlists.ads
../../src/gcc/ada/restrict.ads
../../src/gcc/ada/rident.ads
../../src/gcc/ada/libgnat/s-rident.ads
../../src/gcc/ada/sem.ads
../../src/gcc/ada/sem_aux.ads
../../src/gcc/ada/sem_cat.ads
../../src/gcc/ada/sem_ch3.ads
../../src/gcc/ada/sem_ch5.ads
../../src/gcc/ada/sem_ch8.ads
../../src/gcc/ada/sem_ch13.ads
../../src/gcc/ada/sem_disp.ads
../../src/gcc/ada/sem_dim.ads
../../src/gcc/ada/sem_eval.ads
../../src/gcc/ada/sem_res.ads
../../src/gcc/ada/sem_type.ads
../../src/gcc/ada/sem_warn.ads
../../src/gcc/ada/stringt.ads
../../src/gcc/ada/stand.ads
../../src/gcc/ada/style.ads
../../src/gcc/ada/styleg.ads
../../src/gcc/ada/targparm.ads
../../src/gcc/ada/tbuild.ads
../../src/gcc/ada/ttypes.ads
../../src/gcc/ada/set_targ.ads
../../src/gcc/ada/libgnat/s-stalib.ads
../../src/gcc/ada/libgnat/a-unccon.ads
../../src/gcc/ada/libgnat/s-exctab.ads
../../src/gcc/ada/libgnat/s-unstyp.ads
../../src/gcc/ada/libgnat/s-conca2.ads
../../src/gcc/ada/libgnat/s-assert.ads
../../src/gcc/ada/libgnat/a-except.ads
../../src/gcc/ada/libgnat/s-parame.ads
../../src/gcc/ada/libgnat/s-traent.ads
../../src/gcc/ada/atree.adb
../../src/gcc/ada/debug.ads
../../src/gcc/ada/output.ads
../../src/gcc/ada/libgnat/s-os_lib.ads
../../src/gcc/ada/sinput.ads
../../src/gcc/ada/casing.ads
../../src/gcc/ada/libgnat/g-hesorg.ads

compilation abandoned
make[5]: *** [../../src/gcc/ada/gcc-interface/Make-lang.in:139: ada/sem_aggr.o]
Error 1
make[5]: *** Waiting for unfinished jobs....
rm gpl.pod cpp.pod fsf-funding.pod gcc.pod gfdl.pod gcov-tool.pod lto-dump.pod
gcov.pod gcov-dump.pod gdc.pod gfortran.pod

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[mikpelinux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Mikael Pettersson <mikpelinux at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikpelinux at gmail dot com

--- Comment #1 from Mikael Pettersson <mikpelinux at gmail dot com> ---
I recently got a similar error which I'm currently trying to bisect.
gcc-11-20201018 was Ok.

+===========================GNAT BUG DETECTED==============================+
| 11.0.0 20201206 (experimental) (m68k-unknown-linux-gnu) Storage_Error stack
overflow or erroneous memory access|
| No source file position information available                            |
| Please submit a bug report; see https://gcc.gnu.org/bugs/ .              |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact command that you entered.                              |
| Also include sources listed below.                                       |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

/mnt/scratch/gcc-11-20201206/gcc/ada/gcc-interface/system.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-except.adb
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-except.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/ada.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-parame.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-stalib.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-unccon.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-traent.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-except.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-excdeb.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-soflin.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-secsta.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-stoele.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-stache.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-wchcon.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-wchstw.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-traceb.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-trasym.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-exctab.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-excach.adb
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-exexda.adb
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-exexpr.adb
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-uncdea.ads
ada/libgnat/s-excmac.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-exextr.adb
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-elchha.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-imgint.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-imagei.ads
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/a-exstat.adb
/mnt/scratch/gcc-11-20201206/gcc/ada/libgnat/s-stoele.adb

compilation abandoned
make[3]: ***
[/mnt/scratch/gcc-11-20201206/gcc/ada/gcc-interface/Make-lang.in:1053:
ada/libgnat/a-except.o] Error 1
make[3]: Leaving directory '/mnt/scratch/objdir11/gcc'
make[2]: *** [Makefile:4820: all-stage3-gcc] Error 2
make[2]: Leaving directory '/mnt/scratch/objdir11'
make[1]: *** [Makefile:20508: stage3-bubble] Error 2
make[1]: Leaving directory '/mnt/scratch/objdir11'
make: *** [Makefile:20572: bootstrap] Error 2

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #2 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
I have started to bisect this now. aa80d0650ce612d88a62d072b63c2523d547fca8 is
still good while HEAD is broken.

It will take a while until I have a result as I have to perform this bisecting
on qemu-user.

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[mhillen at linux dot ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #3 from Marius Hillenbrand <mhillen at linux dot ibm.com> ---
Potential duplicate: I have seen very similar errors on s390x while reproducing
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98228

There, bisecting lead back to d119f34c952f ("New modref/ipa_modref optimization
passes"). In my tests, the first stage that is compiled with -flto then later
fails with errors of that kind (e.g., stage3 with config bootstrap-lto-lean).


.../gcc/build-ada3/./prev-gcc/xgcc -B/.../gcc/build-ada3/./prev-gcc/ 
-fchecking=1 -c -g -O2 -fchecking=1 -flto=jobserver -frandom-seed=1  -gnatpg
-gnata -W -Wall -nostdinc -I- -I. -Iada/generated -Iada -Iada/gcc-interface
-I..
/../gcc/ada -I../../gcc/ada/gcc-interface -Iada/libgnat -I../../gcc/ada/libgnat
../../gcc/ada/libgnat/a-elchha.adb -o ada/libgnat/a-elchha.o
+===========================GNAT BUG DETECTED==============================+
| 11.0.0 20201218 (experimental) (s390x-linux-gnu) Storage_Error stack overflow
or erroneous memory access|
| Error detected at a-elchha.adb:144:20                                    |
| Please submit a bug report; see https://gcc.gnu.org/bugs/ .              |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact command that you entered.                              |
| Also include sources listed below.                                       |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

../../gcc/ada/gcc-interface/system.ads
../../gcc/ada/libgnat/a-elchha.adb
../../gcc/ada/libgnat/a-elchha.ads
../../gcc/ada/libgnat/a-except.ads
../../gcc/ada/libgnat/ada.ads
../../gcc/ada/libgnat/s-parame.ads
../../gcc/ada/libgnat/s-stalib.ads
../../gcc/ada/libgnat/a-unccon.ads
../../gcc/ada/libgnat/s-traent.ads
../../gcc/ada/libgnat/s-soflin.ads
../../gcc/ada/libgnat/s-secsta.ads
../../gcc/ada/libgnat/s-stoele.ads
../../gcc/ada/libgnat/s-stache.ads


and
.../gcc/build-ada3/./prev-gcc/xgcc -B/.../gcc/build-ada3/./prev-gcc/ 
-fchecking=1 -c -g -O2 -fchecking=1 -flto=jobserver -frandom-seed=1  -gnatpg
-gnata -W -Wall -g -O1 -fno-inline \
 -nostdinc -I- -I. -Iada/generated -Iada -Iada/gcc-interface -I../../gcc/ada
-I../../gcc/ada/gcc-interface -Iada/libgnat -I../
../gcc/ada/libgnat ../../gcc/ada/libgnat/a-except.adb -o ada/libgnat/a-except.o
+===========================GNAT BUG DETECTED==============================+
| 11.0.0 20201218 (experimental) (s390x-linux-gnu) Storage_Error stack overflow
or erroneous memory access|
| Error detected at a-exexda.adb:472:23                                    |
| Please submit a bug report; see https://gcc.gnu.org/bugs/ .              |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact command that you entered.                              |
| Also include sources listed below.                                       |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

../../gcc/ada/gcc-interface/system.ads
../../gcc/ada/libgnat/a-except.adb
../../gcc/ada/libgnat/a-except.ads
../../gcc/ada/libgnat/ada.ads
../../gcc/ada/libgnat/s-parame.ads
../../gcc/ada/libgnat/s-stalib.ads
../../gcc/ada/libgnat/a-unccon.ads
../../gcc/ada/libgnat/s-traent.ads
../../gcc/ada/libgnat/s-except.ads
../../gcc/ada/libgnat/s-excdeb.ads
../../gcc/ada/libgnat/s-soflin.ads
../../gcc/ada/libgnat/s-secsta.ads
../../gcc/ada/libgnat/s-stoele.ads
../../gcc/ada/libgnat/s-stache.ads
../../gcc/ada/libgnat/s-wchcon.ads
../../gcc/ada/libgnat/s-wchstw.ads
../../gcc/ada/libgnat/s-traceb.ads
../../gcc/ada/libgnat/s-trasym.ads
../../gcc/ada/libgnat/s-exctab.ads
../../gcc/ada/libgnat/a-excach.adb
../../gcc/ada/libgnat/a-exexda.adb

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #4 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
This regression was introduced by:

commit d7e20130650fb46d71e0403652e4e07bc14f9775 (refs/bisect/bad)
Author: Justin Squirek <squirek@adacore.com>
Date:   Mon Aug 10 12:05:07 2020 -0400

    [Ada] Reimplementation of accessibility checking

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.0

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[mikpelinux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #5 from Mikael Pettersson <mikpelinux at gmail dot com> ---
(In reply to John Paul Adrian Glaubitz from comment #4)
> This regression was introduced by:
> 
> commit d7e20130650fb46d71e0403652e4e07bc14f9775 (refs/bisect/bad)
> Author: Justin Squirek <squirek@adacore.com>
> Date:   Mon Aug 10 12:05:07 2020 -0400
> 
>     [Ada] Reimplementation of accessibility checking

My git bisect landed on this commit too.

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #6 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to Mikael Pettersson from comment #5)
> My git bisect landed on this commit too.

I just pinged Justin again. He unfortunately doesn't seem to have a Bugzilla
account, so we can't add him in the CC list of this bug report.

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[charlet at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Arnaud Charlet <charlet at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |charlet at gcc dot gnu.org

--- Comment #7 from Arnaud Charlet <charlet at gcc dot gnu.org> ---
Well the change was a big change so it's hard to guess why it caused this issue
but it's quite possible that this change is fine on its own and exposing a
latent issue.

In other words, the bisect result isn't very useful here and I'd recommend
investigating this change from scratch, getting a useful backtrace from gdb and
understanding where this is crashing and then why.

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #8 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to Arnaud Charlet from comment #7)
> In other words, the bisect result isn't very useful here and I'd recommend
> investigating this change from scratch, getting a useful backtrace from gdb
> and understanding where this is crashing and then why.

I can certainly generate a backtrace in GDB, but I'm not an Ada expert which is
why I reported the issue and hoped that the author of the change would be able
to understand what the problem is.

It could also be possible that the change makes some assumptions of the
underlying ABI that may well be true for x86_64 but not m68k.

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[charlet at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #9 from Arnaud Charlet <charlet at gcc dot gnu.org> ---
The problem is somehow specific to m68k, for some unknown reason. There is
nothing target specific in the change, no assumption is made on the underlying
target.

What we need now is a debugging session from someone who has a setup to
reproduce.

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #10 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to Arnaud Charlet from comment #9)
> The problem is somehow specific to m68k, for some unknown reason. There is
> nothing target specific in the change, no assumption is made on the
> underlying target.
> 
> What we need now is a debugging session from someone who has a setup to
> reproduce.

See here on how to set up a qemu environment:
https://wiki.debian.org/M68k/QemuSystemM68k

[Bug target/98341] [11 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.0                        |11.2

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 11.1 has been released, retargeting bugs to GCC 11.2.

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[reiter.christoph at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Christoph Reiter <reiter.christoph at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reiter.christoph at gmail dot com

--- Comment #12 from Christoph Reiter <reiter.christoph at gmail dot com> ---
Note sure if this is related, but the 32bit Windows build of 11.1.0 fails in a
similar way:

gnat1.exe: warning: command-line option '-Wno-pedantic-ms-format' is valid for
C/C++/ObjC/ObjC++ but not for Ada
make[3]: *** [../../gcc-11.1.0/gcc/ada/gcc-interface/Make-lang.in:1052:
ada/libgnat/a-except.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm gcc.pod gfortran.pod
make[3]: Leaving directory '/C/_/mingw-w64-gcc/src/build-i686-w64-mingw32/gcc'
make[2]: *** [Makefile:4833: all-stage2-gcc] Error 2
make[2]: Leaving directory '/C/_/mingw-w64-gcc/src/build-i686-w64-mingw32'
make[1]: *** [Makefile:26006: stage2-bubble] Error 2
make[1]: Leaving directory '/C/_/mingw-w64-gcc/src/build-i686-w64-mingw32'
make: *** [Makefile:1013: all] Error 2

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with Storage_Error stack overflow or erroneous memory access on m68k

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #13 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Note sure if this is related, but the 32bit Windows build of 11.1.0 fails in
> a similar way:

Not all build failures are similar because they affect the Ada compiler! 
Please open a separate TN for your problem, this one is for m68k.  Thanks in
advance.

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[11/12 Regression] Ada      |[11/12 Regression] Ada
                   |bootstrap fails with        |bootstrap fails with
                   |Storage_Error stack         |erroneous memory access on
                   |overflow or erroneous       |m68k
                   |memory access on m68k       |
   Last reconfirmed|                            |2021-05-02
             Status|UNCONFIRMED                 |WAITING
     Ever confirmed|0                           |1

--- Comment #14 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
We need at least a backtrace.

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.2                        |11.3

--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 11.2 is being released, retargeting bugs to GCC 11.3

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #16 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
Just as a heads-up: This has been fixed for me with gcc-12. I can successfully
bootstrap Ada in gcc-12 with gnat-10.

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #17 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Just as a heads-up: This has been fixed for me with gcc-12. I can
> successfully bootstrap Ada in gcc-12 with gnat-10.

Great.  What about gcc-11?

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #18 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to Eric Botcazou from comment #17)
> > Just as a heads-up: This has been fixed for me with gcc-12. I can
> > successfully bootstrap Ada in gcc-12 with gnat-10.
> 
> Great.  What about gcc-11?

The git snapshot 20220130 from the gcc-11 branch still fails. However, since
Matthias just uploaded 20220222, I can try that as well and report back.

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #19 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to John Paul Adrian Glaubitz from comment #18)
> The git snapshot 20220130 from the gcc-11 branch still fails. However, since
> Matthias just uploaded 20220222, I can try that as well and report back.

gcc-11 is still affected.

[Bug target/98341] [11/12 Regression] Ada bootstrap fails with erroneous memory access on m68k

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.3                        |11.4

--- Comment #20 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 11.3 is being released, retargeting bugs to GCC 11.4.

[Bug target/98341] [11/12/13 Regression] Ada bootstrap fails with erroneous memory access on m68k

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

--- Comment #21 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
This issue is fixed in 12 and presumably also in version 13. So the title is
misleading.

[Bug target/98341] [11 Regression] Ada bootstrap fails with erroneous memory access on m68k

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |egallager at gcc dot gnu.org
            Summary|[11/12/13 Regression] Ada   |[11 Regression] Ada
                   |bootstrap fails with        |bootstrap fails with
                   |erroneous memory access on  |erroneous memory access on
                   |m68k                        |m68k

--- Comment #22 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to John Paul Adrian Glaubitz from comment #21)
> This issue is fixed in 12 and presumably also in version 13. So the title is
> misleading.

It is? OK, I'll retitle then...

[Bug target/98341] [11 Regression] Ada bootstrap fails with erroneous memory access on m68k

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98341

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.4                        |11.5

--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 11.4 is being released, retargeting bugs to GCC 11.5.