[Bug c/101108] New: ICE: segmentation fault: gimplify_target_expr, gimplify.c:6760

[Bug c/101108] New: ICE: segmentation fault: gimplify_target_expr, gimplify.c:6760

[cnsun at uwaterloo dot ca]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101108

            Bug ID: 101108
           Summary: ICE: segmentation fault: gimplify_target_expr,
                    gimplify.c:6760
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: cnsun at uwaterloo dot ca
  Target Milestone: ---

$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20210617 (experimental) [master revision
:7d4a310d9:9a61dfdb5ecb58bc4caea1c11e017d93bdd1d9a5] (GCC)

$ cat mutant.c
#include <stdatomic.h>
test_ptr(void *p) {
  atomic_int j;
  j += *p;
}

$ gcc-trunk  mutant.c
mutant.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
    2 | test_ptr(void *p) {
      | ^~~~~~~~
mutant.c: In function ‘test_ptr’:
mutant.c:4:8: warning: dereferencing ‘void *’ pointer
    4 |   j += *p;
      |        ^~
mutant.c:4:3: error: void value not ignored as it ought to be
    4 |   j += *p;
      |   ^
mutant.c:4:5: internal compiler error: Segmentation fault
    4 |   j += *p;
      |     ^~
0xf0b603 crash_signal
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/toplev.c:327
0xc43442 gimplify_target_expr
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6760
0xc34f32 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:14491
0xc383fa gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6865
0xc359fb gimplify_statement_list
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:1887
0xc359fb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:14539
0xc383fa gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6865
0xc38829 gimplify_compound_expr
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6065
0xc35563 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:14084
0xc383fa gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6865
0xc359fb gimplify_statement_list
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:1887
0xc359fb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:14539
0xc383fa gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6865
0xc38c2e gimplify_bind_expr
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:1426
0xc34e63 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:14295
0xc383fa gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:6865
0xc399f3 gimplify_body(tree_node*, bool)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:15339
0xc39e41 gimplify_function_tree(tree_node*)
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/gimplify.c:15493
0xa8b6d7 cgraph_node::analyze()
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/cgraphunit.c:670
0xa8e601 analyze_functions
        /tmp/tmp.fE7wx4xftU-gcc-builder/gcc/gcc/cgraphunit.c:1234
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.

[Bug c/101108] ICE: segmentation fault: gimplify_target_expr, gimplify.c:6760

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101108

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marxin at gcc dot gnu.org
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-06-22
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, old issue.

[Bug c/101108] ICE: segmentation fault: gimplify_target_expr, gimplify.c:6760

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101108

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|NEW                         |RESOLVED

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 98195.

*** This bug has been marked as a duplicate of bug 98195 ***