https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100556
Bug ID: 100556
Summary: ICE: in gimplify_expr, at gimplify.c:14868
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.BriefQJ2R3-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 20210511 (experimental) [master revision
:61d4686bb:71d38ec80008afdbb9a059253407d80598b765c0] (GCC)
$ cat mutant.c
f2() { return __transaction_atomic(f() == 0); }
$ gcc-trunk -O0 mutant.c
mutant.c:1:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
1 | f2() { return __transaction_atomic(f() == 0); }
| ^~
mutant.c: In function ‘f2’:
mutant.c:1:36: warning: implicit declaration of function ‘f’; did you mean
‘f2’? [-Wimplicit-function-declaration]
1 | f2() { return __transaction_atomic(f() == 0); }
| ^
| f2
mutant.c:1:15: error: ‘__transaction_atomic’ without transactional memory
support enabled
1 | f2() { return __transaction_atomic(f() == 0); }
| ^~~~~~~~~~~~~~~~~~~~
mutant.c:1:36: internal compiler error: in gimplify_expr, at gimplify.c:14868
1 | f2() { return __transaction_atomic(f() == 0); }
| ^~~
0x6daa38 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14868
0xc24eb1 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14838
0xc2531f gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14388
0xc358b7 gimplify_modify_expr
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:5818
0xc25118 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14083
0xc28a4a gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:6877
0xc2927e gimplify_bind_expr
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:1421
0xc254b3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14284
0xc28a4a gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:6877
0xc27bf8 gimplify_and_add(tree_node*, gimple**)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:489
0xc27bf8 gimplify_and_return_first
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:501
0xc27bf8 gimplify_transaction
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:13703
0xc27bf8 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14711
0xc358b7 gimplify_modify_expr
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:5818
0xc25118 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14083
0xc28a4a gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:6877
0xc341ed gimplify_and_add(tree_node*, gimple**)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:489
0xc341ed gimplify_return_expr
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:1671
0xc25dbf gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:14345
0xc28a4a gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimplify.c:6877
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.
