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.
