https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100530
Bug ID: 100530
Summary: ICE with -g: in add_dwarf_attr, at dwarf2out.c:4493
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
__seg_gs i;
$ gcc-trunk -g mutant.c
mutant.c:1:10: warning: type defaults to ‘int’ in declaration of ‘i’
[-Wimplicit-int]
1 | __seg_gs i;
| ^
mutant.c:1:1: internal compiler error: in add_dwarf_attr, at dwarf2out.c:4493
1 | __seg_gs i;
| ^~~~~~~~
0x6a0017 add_dwarf_attr
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:4493
0x6a0017 add_dwarf_attr
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:4480
0x6a0017 add_AT_string
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:4753
0x6a0017 add_name_attribute
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:20909
0xb0587c add_name_attribute
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:13684
0xb0587c modified_type_die
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:13876
0xb078f4 add_type_attribute
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:22023
0xafb587 gen_variable_die
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:24331
0xb1d6c8 gen_decl_die
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:26780
0xb1ec96 dwarf2out_decl
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:27270
0xb1f434 dwarf2out_early_global_decl
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/dwarf2out.c:26920
0x8dfeeb finish_decl(tree_node*, unsigned int, tree_node*, tree_node*,
tree_node*)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-decl.c:5534
0x9431ab c_parser_declaration_or_fndef
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:2370
0x94b9d3 c_parser_external_declaration
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:1777
0x94c439 c_parser_translation_unit
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:1650
0x94c439 c_parse_file()
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:21984
0x9ac765 c_common_parse_file()
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c-family/c-opts.c:1218
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.
