[Bug c/108482] New: ice in expand_LOOP_DIST_ALIAS, at internal-fn.cc:2737

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108482

            Bug ID: 108482
           Summary: ice in expand_LOOP_DIST_ALIAS, at internal-fn.cc:2737
           Product: gcc
           Version: 13.0
            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 54317
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54317&action=edit
C source code

For the attached C code, compiled as follows:

$ /home/dcb36/gcc/results/bin/gcc  -c -O3 -w -ftrivial-auto-var-init=zero 
bug874.c
during RTL pass: expand
testFile.21840.c: In function ‘func_1.isra’:
testFile.21840.c:112:16: internal compiler error: in expand_LOOP_DIST_ALIAS, at
internal-fn.cc:2737
0xb17ff4 expand_LOOP_DIST_ALIAS(internal_fn, gcall*)
        ../../trunk.d1/gcc/internal-fn.cc:2737
0x86d30e expand_call_stmt(gcall*)
        ../../trunk.d1/gcc/cfgexpand.cc:2737
0x86d30e expand_gimple_stmt_1(gimple*)
        ../../trunk.d1/gcc/cfgexpand.cc:3880
0x86d30e expand_gimple_stmt(gimple*)
        ../../trunk.d1/gcc/cfgexpand.cc:4044

The bug seems to exist since sometime before g:02c031088ac0bbf7,
dated 20221220.

I have a reduction running.