[Bug testsuite/112786] New: [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[Bug testsuite/112786] New: [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

            Bug ID: 112786
           Summary: [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and
                    scev-5.c XPASSing on most ilp32 targets
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: testsuite-fail
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hp at gcc dot gnu.org
                CC: aoliva at gcc dot gnu.org
            Blocks: 96831
  Target Milestone: ---
            Target: cris-elf, m68k-linux-gnu, arm-eabi, pru-elf, ft32-elf,
                    c6x-elf, epiphany-elf, lm32-elf, microblaze-linux,
                    m32r-elf, mcore-elf, shle-linux

This tracks the three regressions for most ilp32 targets (see target field;
default configurations only) that were appearing with r14-5608-g69741355e6dbcf;
regressions because they didn't show up before, in particular as a XPASS.

For discussing underlying issues, PR96831 is probably a better choice.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96831
[Bug 96831] gcc.dg/tree-ssa/scev-[345].c FAIL on i?86 and arm

[Bug testsuite/112786] [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1
           Assignee|unassigned at gcc dot gnu.org      |hp at gcc dot gnu.org
   Last reconfirmed|                            |2023-11-30

[Bug testsuite/112786] [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch

--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
See URL field for patch alternative 1.
Alternative 2:
https://gcc.gnu.org/pipermail/gcc-patches/2023-December/638863.html

[Bug testsuite/112786] [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note they XPASS on the 13 branch as well IIRC.

[Bug testsuite/112786] [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

--- Comment #3 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
> Note they XPASS on the 13 branch as well IIRC.

XPASS without Alex patch?  Is that XPASS a typo for FAIL or PASS?

Either way, they FAIL, for ia32 say these results from gcc-testresults@:

i386-pc-solaris2.11
https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800123.html

x86_64-pc-linux-gnu -m32 (but not -mx32 nor default)
https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800107.html

i686-pc-linux-gnu
https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800113.html

And PASS for these:
sparc-sun-solaris2.11
https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800134.html

avr-unknown-none
https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800623.html

pru-unknown-elf
https://gcc.gnu.org/pipermail/gcc-testresults/2023-November/800630.html

[Bug testsuite/112786] [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Hans-Peter Nilsson <hp@gcc.gnu.org>:

https://gcc.gnu.org/g:0f3bac474e8f6563a59f814ccf7609ced48b1157

commit r14-6353-g0f3bac474e8f6563a59f814ccf7609ced48b1157
Author: Hans-Peter Nilsson <hp@axis.com>
Date:   Thu Dec 7 17:23:30 2023 +0100

    testsuite: Remove gcc.dg/tree-ssa/scev-3.c -4.c and 5.c

    These tests were recently xfailed on ilp32 targets though
    passing on almost all ilp32 targets (known exceptions: ia32
    and some arm subtargets).  They've been changed around too
    much to remain useful.

            PR testsuite/112786
            * gcc.dg/tree-ssa/scev-3.c, gcc.dg/tree-ssa/scev-4.c,
            gcc.dg/tree-ssa/scev-5.c: Remove.

[Bug testsuite/112786] [14 Regression] gcc.dg/tree-ssa/scev-3.c scev-4.c and scev-5.c XPASSing on most ilp32 targets

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112786

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #5 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
.