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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/108482] New: ice in expand_LOOP_DIST_ALIAS, at
 internal-fn.cc:2737
Date: Fri, 20 Jan 2023 16:24:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108482

            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=3D54317&action=3Dedit
C source code

For the attached C code, compiled as follows:

$ /home/dcb36/gcc/results/bin/gcc  -c -O3 -w -ftrivial-auto-var-init=3Dzero=
=20
bug874.c
during RTL pass: expand
testFile.21840.c: In function =E2=80=98func_1.isra=E2=80=99:
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.=