https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100542
Bug ID: 100542
Summary: ICE: segmentation fault, at is_gimple_variable,
gimple-expr.h:84
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.FUbEknNORK-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
:7db32cac8:aa891c56f25baac94db004e309d1b6e40b770a95] (GCC)
$ cat mutant.c
ldt_add_entry()
{
__asm__ ( "" : : "m" ( ( { } ) ) ) ;
}
$ 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:3:26: internal compiler error: Segmentation fault
3 | __asm__ ( "" : : "m" ( ( { } ) ) ) ;
| ~~^~~~~
0xef7273 crash_signal
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/toplev.c:327
0xbeacd4 is_gimple_variable
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimple-expr.h:84
0xbeacd4 is_gimple_id
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimple-expr.h:95
0xbeacd4 is_gimple_addressable
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimple-expr.h:122
0xbeacd4 is_gimple_lvalue(tree_node*)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimple-expr.c:595
0xc273cd gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:15038
0xc30a1d gimplify_asm_expr
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:6506
0xc26705 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:14416
0xc28f6a gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:6877
0xc2979e gimplify_bind_expr
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:1421
0xc259d3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:14284
0xc28f6a gimplify_stmt(tree_node**, gimple**)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:6877
0xc2a563 gimplify_body(tree_node*, bool)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:15328
0xc2a9b1 gimplify_function_tree(tree_node*)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/gimplify.c:15482
0xa7e707 cgraph_node::analyze()
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/cgraphunit.c:670
0xa81611 analyze_functions
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/cgraphunit.c:1234
0xa820e1 symbol_table::finalize_compilation_unit()
/tmp/tmp.FUbEknNORK-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.
