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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/109139] New: ice in make_decl_rtl, at varasm.cc:1442
Date: Wed, 15 Mar 2023 08:17:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109139

            Bug ID: 109139
           Summary: ice in make_decl_rtl, at varasm.cc:1442
           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: ---

This C code:

const int COMPARE_CANDIDATE;
char ipmi_ek_compare_link_record1_0, ipmi_ek_compare_link_record2_0;
void ipmi_ek_compare_link() {
  for (; ipmi_ek_compare_link_record1_0;)
    for (; ipmi_ek_compare_link_record2_0;) {
      int link[COMPARE_CANDIDATE];
    }
}

when compiled by today's gcc trunk, does this:

$ ~/gcc/results.20230315/bin/gcc -c -w -O1 -ftrivial-auto-var-init=3Dzero
bug896.c=20
during RTL pass: expand
bug896.c: In function =E2=80=98ipmi_ek_compare_link=E2=80=99:
bug896.c:6:11: internal compiler error: in make_decl_rtl, at varasm.cc:1442
    6 |       int link[COMPARE_CANDIDATE];
      |           ^~~~
0x7c9502 make_decl_rtl(tree_node*)
        ../../trunk.year/gcc/varasm.cc:1442

It worked yesterday:

$ ~/gcc/results.20230314/bin/gcc -c -w -O1 -ftrivial-auto-var-init=3Dzero
bug896.c=20
$=20

The git range seems to be g:e17936f842d28854 .. g:a9ae16db8cbb2c0e.=