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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/106881] New: ice in init_from_control_deps, at
 gimple-predicate-analysis.cc:1740
Date: Wed, 07 Sep 2022 18:31:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106881

            Bug ID: 106881
           Summary: ice in init_from_control_deps, at
                    gimple-predicate-analysis.cc:1740
           Product: gcc
           Version: 12.0
            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 53546
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53546&action=3Dedit
C source code

The attached C code does this:

 /home/dcb/gcc/results/bin/gcc -c -O1 -Wall -fexceptions bug843.c
during GIMPLE pass: uninit
src/eap-gtc.c: In function =E2=80=98eap_gtc_check_settings=E2=80=99:
src/eap-gtc.c:74:12: internal compiler error: in init_from_control_deps, at
gimple-predicate-analysis.cc:1740
0x1b161f5 predicate::init_from_control_deps(vec<edge_def*, va_heap, vl_ptr>
const*, unsigned int, bool)
        ../../trunk.git/gcc/gimple-predicate-analysis.cc:1740
0x1b16974 uninit_analysis::init_use_preds(predicate&, basic_block_def*,
basic_block_def*)
        ../../trunk.git/gcc/gimple-predicate-analysis.cc:1996

I will have a go at producing a git range and a reduction.=