[Bug tree-optimization/111917] [11/12/13/14 Regression] ICE in as_a, at is-a.h:255 since GCC-8

2023-10-22 Thread pinskia at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111917

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||needs-bisection
   Target Milestone|14.0|11.5
 Status|UNCONFIRMED |NEW
  Known to work||6.4.0
 Ever confirmed|0   |1
   Last reconfirmed||2023-10-22

--- Comment #2 from Andrew Pinski  ---
Confirmed. Dates to between 6 and 7.

[Bug tree-optimization/111917] [11/12/13/14 Regression] ICE in as_a, at is-a.h:255 since GCC-8

2023-10-22 Thread tkoenig at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111917

Thomas Koenig  changed:

   What|Removed |Added

   Keywords||ice-on-valid-code
Summary|ICE in as_a, at is-a.h:255  |[11/12/13/14 Regression]
   |since GCC-8 |ICE in as_a, at is-a.h:255
   ||since GCC-8
   Target Milestone|--- |14.0
 CC||tkoenig at gcc dot gnu.org

--- Comment #1 from Thomas Koenig  ---
Works for 4.8.5, must be a not-so-recent regression.

Note that with gcc (GCC) 11.3.1 20221121 (Red Hat 11.3.1-4) on POWER,
the error is different:

x.c: In function ‘main’:
x.c:15:5: internal compiler error: in mark_stmt_if_obviously_necessary, at
tree-ssa-dce.c:295
   15 | int main() { d(); }
  | ^~~~
Please submit a full bug report,