[Bug tree-optimization/115197] [13/14/15 Regression] ICE on valid code at -O{1,2} with "-fno-tree-scev-cprop -ftree-pre -ftree-loop-distribute-patterns" on x86_64-linux-gnu: Segmentation fault

2024-05-23 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115197

--- Comment #3 from GCC Commits  ---
The master branch has been updated by Richard Biener :

https://gcc.gnu.org/g:2b2476d4d18c92b8aba3567ebccd2100c2f7c258

commit r15-793-g2b2476d4d18c92b8aba3567ebccd2100c2f7c258
Author: Richard Biener 
Date:   Thu May 23 14:36:39 2024 +0200

tree-optimization/115197 - fix ICE w/ constant in LC PHI and loop
distribution

Forgot a check for an SSA name before trying to replace a PHI arg with
its current definition.

PR tree-optimization/115197
* tree-loop-distribution.cc (copy_loop_before): Constant PHI
args remain the same.

* gcc.dg/pr115197.c: New testcase.

[Bug tree-optimization/115197] [13/14/15 Regression] ICE on valid code at -O{1,2} with "-fno-tree-scev-cprop -ftree-pre -ftree-loop-distribute-patterns" on x86_64-linux-gnu: Segmentation fault

2024-05-23 Thread rguenth at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115197

Richard Biener  changed:

   What|Removed |Added

   Priority|P3  |P2
   Keywords|needs-bisection |

--- Comment #2 from Richard Biener  ---
Caused by r13-1728-gce92603fbe3b48, testing trivial fix.

[Bug tree-optimization/115197] [13/14/15 Regression] ICE on valid code at -O{1,2} with "-fno-tree-scev-cprop -ftree-pre -ftree-loop-distribute-patterns" on x86_64-linux-gnu: Segmentation fault

2024-05-23 Thread rguenth at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115197

Richard Biener  changed:

   What|Removed |Added

  Known to work||12.3.0
Version|unknown |13.3.1
  Known to fail||13.3.0
   Assignee|unassigned at gcc dot gnu.org  |rguenth at gcc dot 
gnu.org
 Status|UNCONFIRMED |ASSIGNED
Summary|ICE on valid code at|[13/14/15 Regression] ICE
   |-O{1,2} with|on valid code at -O{1,2}
   |"-fno-tree-scev-cprop   |with "-fno-tree-scev-cprop
   |-ftree-pre  |-ftree-pre
   |-ftree-loop-distribute-patt |-ftree-loop-distribute-patt
   |erns" on x86_64-linux-gnu:  |erns" on x86_64-linux-gnu:
   |Segmentation fault  |Segmentation fault
 Ever confirmed|0   |1
   Keywords||ice-on-valid-code,
   ||needs-bisection
   Last reconfirmed||2024-05-23
   Target Milestone|--- |13.4

--- Comment #1 from Richard Biener  ---
I'll have a look.