https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100792
Bug ID: 100792
Summary: ICE: gimplify_expr, at gimplify.c:14879
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.SQC1E9RsGE-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 20210527 (experimental) [master revision
:d03f010a0:01c59ef2e5a59b44d2b662361196abb6be872a20] (GCC)
$ cat mutant.c
ldt_add_entry() {
__asm__("" : : "m"(({ __asm__(""); })));
}
$ gcc-trunk mutant.c
mutant.c:1:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
1 | ldt_add_entry() {
| ^~~~~~~~~~~~~
mutant.c: In function ‘ldt_add_entry’:
mutant.c:2:25: internal compiler error: in gimplify_expr, at gimplify.c:14879
2 | __asm__("" : : "m"(({ __asm__(""); })));
| ~~~^~~~~~~~~~~~~~~
0x6df932 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:14879
0xc4955d gimplify_asm_expr
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:6512
0xc3f245 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:14298
0xc41aaa gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:6883
0xc422de gimplify_bind_expr
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:1424
0xc3e513 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:14166
0xc41aaa gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:6883
0xc430a3 gimplify_body(tree_node*, bool)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:15210
0xc434f1 gimplify_function_tree(tree_node*)
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/gimplify.c:15364
0xa85717 cgraph_node::analyze()
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/cgraphunit.c:670
0xa88641 analyze_functions
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/cgraphunit.c:1234
0xa89111 symbol_table::finalize_compilation_unit()
/tmp/tmp.SQC1E9RsGE-gcc-builder/gcc/gcc/cgraphunit.c:2508
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.
