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* [Bug c/97763] New: valgrind error in ./gcc.dg/vect/vect-nest-cycle-3.c
@ 2020-11-09  8:24 dcb314 at hotmail dot com
  2020-11-09  8:54 ` [Bug c/97763] " marxin at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: dcb314 at hotmail dot com @ 2020-11-09  8:24 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97763

            Bug ID: 97763
           Summary: valgrind error in ./gcc.dg/vect/vect-nest-cycle-3.c
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

I just tried out testsuite file ./gcc.dg/vect/vect-nest-cycle-3.c
with a valgrind version of gcc trunk and compiler flag -O3.

It said:

./gcc.dg/vect/vect-nest-cycle-3.c
==309158== Use of uninitialised value of size 8
==309158==    at 0x1170D0F: constant_for_folding (gimple-match-head.c:79)
==309158==    by 0x1170D0F: gimple_simplify(tree_code, tree_node*, tree_node*,
tree_node*, gimple**, tree_node* (*)(tree_node*)) (gimple-match-head.c:697)
==309158==    by 0x9039AA: gimple_build(gimple**, unsigned int, tree_code,
tree_node*, tree_node*, tree_node*) (gimple-fold.c:7654)
==309158==    by 0xE47018: gimple_build (gimple-fold.h:83)

This first seems to go wrong sometime between 20201023 and 20201107.

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug c/97763] valgrind error in ./gcc.dg/vect/vect-nest-cycle-3.c
  2020-11-09  8:24 [Bug c/97763] New: valgrind error in ./gcc.dg/vect/vect-nest-cycle-3.c dcb314 at hotmail dot com
@ 2020-11-09  8:54 ` marxin at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-11-09  8:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97763

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
                 CC|                            |marxin at gcc dot gnu.org
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Dup.

*** This bug has been marked as a duplicate of bug 97753 ***

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2020-11-09  8:24 [Bug c/97763] New: valgrind error in ./gcc.dg/vect/vect-nest-cycle-3.c dcb314 at hotmail dot com
2020-11-09  8:54 ` [Bug c/97763] " marxin at gcc dot gnu.org

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