[Bug c/93953] New: ice during during GIMPLE pass: vect

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93953

            Bug ID: 93953
           Summary: ice during during GIMPLE pass: vect
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 47918
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47918&action=edit
C source code

For the attached C code, with recent gcc trunk
and compiler flag -O3, does this:

during GIMPLE pass: vect
../../../cl_screen.c: In function ‘CL_UpdateScreen’:
../../../cl_screen.c:2697:6: internal compiler error: Segmentation fault
0xee9b17 crash_signal
        ../../trunk.git/gcc/toplev.c:328
0x11c46b7 slp_copy_subtree
        ../../trunk.git/gcc/tree-vect-slp.c:1786
0x11c46ae slp_copy_subtree
        ../../trunk.git/gcc/tree-vect-slp.c:1785
0x11c46ae slp_copy_subtree
        ../../trunk.git/gcc/tree-vect-slp.c:1785

I'll have my usual go at finding a range where the problem
first starts and reducing the code.