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* [Bug tree-optimization/102400] New: Field might miss initialization in vn_reference_insert_pieces()
@ 2021-09-18 14:27 fxue at os dot amperecomputing.com
  2021-09-20  8:50 ` [Bug tree-optimization/102400] " rguenth at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: fxue at os dot amperecomputing.com @ 2021-09-18 14:27 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102400

            Bug ID: 102400
           Summary: Field might miss initialization in
                    vn_reference_insert_pieces()
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: fxue at os dot amperecomputing.com
  Target Milestone: ---

There is no initialization for vr1->result_vdef, and it may contain non-zero
garbage value.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/102400] Field might miss initialization in vn_reference_insert_pieces()
  2021-09-18 14:27 [Bug tree-optimization/102400] New: Field might miss initialization in vn_reference_insert_pieces() fxue at os dot amperecomputing.com
@ 2021-09-20  8:50 ` rguenth at gcc dot gnu.org
  2021-09-24  3:05 ` cvs-commit at gcc dot gnu.org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-09-20  8:50 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102400

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-09-20
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed, it should be safe to zero initialize it (the field was added late).

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/102400] Field might miss initialization in vn_reference_insert_pieces()
  2021-09-18 14:27 [Bug tree-optimization/102400] New: Field might miss initialization in vn_reference_insert_pieces() fxue at os dot amperecomputing.com
  2021-09-20  8:50 ` [Bug tree-optimization/102400] " rguenth at gcc dot gnu.org
@ 2021-09-24  3:05 ` cvs-commit at gcc dot gnu.org
  2021-09-24  3:33 ` cvs-commit at gcc dot gnu.org
  2021-09-24  4:26 ` fxue at os dot amperecomputing.com
  3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-09-24  3:05 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102400

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Feng Xue <fxue@gcc.gnu.org>:

https://gcc.gnu.org/g:29c92857039d0a105281be61c10c9e851aaeea4a

commit r12-3875-g29c92857039d0a105281be61c10c9e851aaeea4a
Author: Feng Xue <fxue@os.amperecomputing.com>
Date:   Thu Sep 23 09:14:33 2021 +0800

    Fix value uninitialization in vn_reference_insert_pieces [PR102400]

    2021-09-23  Feng Xue  <fxue@os.amperecomputing.com>

    gcc/
            PR tree-optimization/102400
            * tree-ssa-sccvn.c (vn_reference_insert_pieces): Initialize
            result_vdef to zero value.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/102400] Field might miss initialization in vn_reference_insert_pieces()
  2021-09-18 14:27 [Bug tree-optimization/102400] New: Field might miss initialization in vn_reference_insert_pieces() fxue at os dot amperecomputing.com
  2021-09-20  8:50 ` [Bug tree-optimization/102400] " rguenth at gcc dot gnu.org
  2021-09-24  3:05 ` cvs-commit at gcc dot gnu.org
@ 2021-09-24  3:33 ` cvs-commit at gcc dot gnu.org
  2021-09-24  4:26 ` fxue at os dot amperecomputing.com
  3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-09-24  3:33 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102400

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Feng Xue <fxue@gcc.gnu.org>:

https://gcc.gnu.org/g:210c3901749a245dc45f04da3dac70ef126e6762

commit r11-9030-g210c3901749a245dc45f04da3dac70ef126e6762
Author: Feng Xue <fxue@os.amperecomputing.com>
Date:   Thu Sep 23 09:14:33 2021 +0800

    Fix value uninitialization in vn_reference_insert_pieces [PR102400]

    2021-09-23  Feng Xue  <fxue@os.amperecomputing.com>

    gcc/
            PR tree-optimization/102400
            * tree-ssa-sccvn.c (vn_reference_insert_pieces): Initialize
            result_vdef to zero value.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/102400] Field might miss initialization in vn_reference_insert_pieces()
  2021-09-18 14:27 [Bug tree-optimization/102400] New: Field might miss initialization in vn_reference_insert_pieces() fxue at os dot amperecomputing.com
                   ` (2 preceding siblings ...)
  2021-09-24  3:33 ` cvs-commit at gcc dot gnu.org
@ 2021-09-24  4:26 ` fxue at os dot amperecomputing.com
  3 siblings, 0 replies; 5+ messages in thread
From: fxue at os dot amperecomputing.com @ 2021-09-24  4:26 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102400

Feng Xue <fxue at os dot amperecomputing.com> changed:

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

--- Comment #4 from Feng Xue <fxue at os dot amperecomputing.com> ---
Fixed

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-09-24  4:26 UTC | newest]

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2021-09-18 14:27 [Bug tree-optimization/102400] New: Field might miss initialization in vn_reference_insert_pieces() fxue at os dot amperecomputing.com
2021-09-20  8:50 ` [Bug tree-optimization/102400] " rguenth at gcc dot gnu.org
2021-09-24  3:05 ` cvs-commit at gcc dot gnu.org
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