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From: "delia.burduv at arm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/94598] New: ICE in verify_sra_access_forest,
 at tree-sra.c:2360 with -O1 or higher
Date: Tue, 14 Apr 2020 17:50:59 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 10.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: delia.burduv at arm dot com
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94598

            Bug ID: 94598
           Summary: ICE in verify_sra_access_forest, at tree-sra.c:2360
                    with -O1 or higher
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: delia.burduv at arm dot com
  Target Milestone: ---

$ cat test.c
struct a {
  int b;
  short c;
};
int d;
void e() {
  struct a f[1];
  f[d] =3D f[d];
}

$ ./aarch64-none-elf-gcc -O1 -c test.c
during GIMPLE pass: esra
test.c: In function 'e':
test.c:9:1: internal compiler error: in verify_sra_access_forest, at
tree-sra.c:2360
    9 | }
      | ^
0xea37a2 verify_sra_access_forest(access*)
        /home/delbur01/gnu-work/src/gcc/gcc/tree-sra.c:2359
0xea609b verify_all_sra_access_forests()
        /home/delbur01/gnu-work/src/gcc/gcc/tree-sra.c:2407
0xea9b7a analyze_all_variable_accesses
        /home/delbur01/gnu-work/src/gcc/gcc/tree-sra.c:3448
0xeaaa44 perform_intra_sra
        /home/delbur01/gnu-work/src/gcc/gcc/tree-sra.c:4502
0xeac2c2 early_intra_sra
        /home/delbur01/gnu-work/src/gcc/gcc/tree-sra.c:4532
0xeac2c2 execute
        /home/delbur01/gnu-work/src/gcc/gcc/tree-sra.c:4575
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.=