[Bug other/101110] New: [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[Bug other/101110] New: [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

            Bug ID: 101110
           Summary: [12 regression] gcc.c-torture/execute/950704-1.c fails
                    after r12-1546
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:786188e8b8cab47cb31177c6f4ab1a1578a607c3, r12-1546
make  -k check-gcc RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/950704-1.c"
FAIL: gcc.c-torture/execute/950704-1.c   -O2  execution test
FAIL: gcc.c-torture/execute/950704-1.c   -O3 -g  execution test
FAIL: gcc.c-torture/execute/950704-1.c   -Os  execution test
FAIL: gcc.c-torture/execute/950704-1.c   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  execution test
FAIL: gcc.c-torture/execute/950704-1.c   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects  execution test
# of expected passes            9
# of unexpected failures        5

The runs don't provide any info on what failed:

spawn [open ...]
FAIL: gcc.c-torture/execute/950704-1.c   -O2  execution test


commit 786188e8b8cab47cb31177c6f4ab1a1578a607c3
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Wed Jun 16 18:08:03 2021 -0400

    Add recomputation to outgoing_edge_range.

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|other                       |tree-optimization
   Target Milestone|---                         |12.0

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

Christophe Lyon <clyon at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |clyon at gcc dot gnu.org
             Target|powerpc64-linux-gnu,        |powerpc64-linux-gnu,
                   |powerpc64le-linux-gnu       |powerpc64le-linux-gnu arm

--- Comment #1 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Seen on some arm configurations when generating thumb code too.

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[amacleod at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

--- Comment #2 from Andrew Macleod <amacleod at redhat dot com> ---
I think the patch for PR 101014 resolves this testcase...  Let me know if this
is fixed on trunk now.

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[xry111 at mengyan1223 dot wang]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

Xi Ruoyao <xry111 at mengyan1223 dot wang> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |xry111 at mengyan1223 dot wang

--- Comment #3 from Xi Ruoyao <xry111 at mengyan1223 dot wang> ---
(In reply to Andrew Macleod from comment #2)
> I think the patch for PR 101014 resolves this testcase...  Let me know if
> this is fixed on trunk now.

This is still failing on mips64el.  And there is really an UB (signed overflow)
in the test:

950704-1.c:9:5: runtime error: signed integer overflow: -9223372036854775808 +
-9223372036854775808 cannot be represented in type 'long long int'

maybe we should add -fwrapv for this test.

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[amacleod at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

--- Comment #4 from Andrew Macleod <amacleod at redhat dot com> ---
Does this still fail?  When i look at a cross compiler listing I do not see any
differences from ranger in the listing.

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[xry111 at mengyan1223 dot wang]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

--- Comment #5 from Xi Ruoyao <xry111 at mengyan1223 dot wang> ---
(In reply to Andrew Macleod from comment #4)
> Does this still fail?  When i look at a cross compiler listing I do not see
> any differences from ranger in the listing.

Should be fixed at d48320083c9a2bdf0ddac693f9d523755b8b29ec.

Sorry for forgetting to mention the PR number in the commit.

[Bug tree-optimization/101110] [12 regression] gcc.c-torture/execute/950704-1.c fails after r12-1546

[amacleod at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101110

Andrew Macleod <amacleod at redhat dot com> changed:

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

--- Comment #6 from Andrew Macleod <amacleod at redhat dot com> ---
fixed.