[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2023-05-29 Thread jakub at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397

Jakub Jelinek  changed:

   What|Removed |Added

   Target Milestone|11.4|11.5

--- Comment #10 from Jakub Jelinek  ---
GCC 11.4 is being released, retargeting bugs to GCC 11.5.

[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2022-04-21 Thread rguenth at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|11.3|11.4

--- Comment #9 from Richard Biener  ---
GCC 11.3 is being released, retargeting bugs to GCC 11.4.

[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2021-12-09 Thread msebor at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397
Bug 101397 depends on bug 103143, which changed state.

Bug 103143 Summary: [12 Regression] ICE due to infinite recursion in 
pointer-query.cc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2021-11-08 Thread msebor at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397

Martin Sebor  changed:

   What|Removed |Added

 Depends on||103143

--- Comment #8 from Martin Sebor  ---
(In reply to Siddhesh Poyarekar from comment #7)

Thanks.  I opened pr103143 for this GCC 12 regression.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
[Bug 103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc

[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2021-10-26 Thread siddhesh at gotplt dot org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397

Siddhesh Poyarekar  changed:

   What|Removed |Added

 CC||siddhesh at gotplt dot org

--- Comment #7 from Siddhesh Poyarekar  ---
(In reply to CVS Commits from comment #4)
> The master branch has been updated by Martin Sebor :
> 
> https://gcc.gnu.org/g:8bf5b49ebd2176b8c535147377381dd07fbdd643
> 
> commit r12-2422-g8bf5b49ebd2176b8c535147377381dd07fbdd643
> Author: Martin Sebor 
> Date:   Tue Jul 20 13:48:20 2021 -0600
> 
> Correct stpcpy offset computation for -Warray-bounds et al. [PR101397].

This causes a crash with the following program due to an infinite recursion:

typedef __SIZE_TYPE__ size_t;

void
__attribute__ ((noinline))
foo (size_t x)
{
  struct T { char buf[64]; char buf2[64]; } t;
  char *p = [8];
  char *r = t.buf2;
  size_t i;

  for (i = 0; i < x; i++)
{
  r = __builtin_mempcpy (r, p, i);
  p = r + 1;
}
}

$ cc1.r12-2422 -quiet -o - repro.c 
.file   "repro.c"
.text
Segmentation fault (core dumped)

[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2021-07-28 Thread rguenth at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|11.2|11.3

--- Comment #6 from Richard Biener  ---
GCC 11.2 is being released, retargeting bugs to GCC 11.3

[Bug middle-end/101397] [11 Regression] spurious warning writing to the result of stpcpy minus 1

2021-07-20 Thread msebor at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101397

Martin Sebor  changed:

   What|Removed |Added

  Known to fail||11.1.0
Summary|[11/12 Regression] spurious |[11 Regression] spurious
   |warning writing to the  |warning writing to the
   |result of stpcpy minus 1|result of stpcpy minus 1

--- Comment #5 from Martin Sebor  ---
Fixed in GCC 12.0.  Will backport to 11 after a bit.