https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97190
Bug ID: 97190
Summary: [11 Regression] ICE in get_location_from_adhoc_loc at
libcpp/line-map.c:257 since r11-2928-gd14c547abd484d35
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: msebor at gcc dot gnu.org
Target Milestone: ---
The following ICEs:
$ cat strncat.c
#include <string.h>
#include <stdlib.h>
test1(char *to, int to_size, char from) { strncat(to, from, 2); }
main() {
size_t to_size = 0;
char *to = malloc(to_size);
char from;
test1(to, to_size, from);
}
$ gcc strncat.c -c -O1
strncat.c:4:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
4 | test1(char *to, int to_size, char from) { strncat(to, from, 2); }
| ^~~~~
strncat.c: In function ‘test1’:
strncat.c:4:55: warning: passing argument 2 of ‘strncat’ makes pointer from
integer without a cast [-Wint-conversion]
4 | test1(char *to, int to_size, char from) { strncat(to, from, 2); }
| ^~~~
| |
| char
In file included from strncat.c:1:
/usr/include/string.h:133:71: note: expected ‘const char * restrict’ but
argument is of type ‘char’
133 | extern char *strncat (char *__restrict __dest, const char *__restrict
__src,
|
~~~~~~~~~~~~~~~~~~~~~~~^~~~~
strncat.c: At top level:
strncat.c:5:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
5 | main() {
| ^~~~
In function ‘test1’,
inlined from ‘main’ at strncat.c:9:3:
strncat.c:4:43: warning: ‘strncat’ specified bound 2 exceeds destination size 0
[-Wstringop-overflow=]
4 | test1(char *to, int to_size, char from) { strncat(to, from, 2); }
| ^~~~~~~~~~~~~~~~~~~~
during RTL pass: expand
strncat.c: In function ‘main’:
strncat.c:4:43: internal compiler error: Segmentation fault
0xb1b95f crash_signal
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/toplev.c:329
0x7ffff76a652f ???
/usr/src/debug/glibc-2.31-6.3.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x14c3a67 get_location_from_adhoc_loc(line_maps const*, unsigned int)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/libcpp/line-map.c:257
0x14c3a67 linemap_resolve_location(line_maps*, unsigned int,
location_resolution_kind, line_map_ordinary const**)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/libcpp/line-map.c:1540
0x149afa9 diagnostic_report_current_module(diagnostic_context*, unsigned int)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/diagnostic.c:683
0xb64481 diagnostic_report_current_function(diagnostic_context*,
diagnostic_info*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/tree-diagnostic.c:39
0xb644c0 default_tree_diagnostic_starter
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/tree-diagnostic.c:48
0x149a1f6 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/diagnostic.c:1206
0x149c6c7 diagnostic_impl
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/diagnostic.c:1355
0x149c6c7 inform(unsigned int, char const*, ...)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/diagnostic.c:1434
0x7226db maybe_warn_for_bound
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/builtins.c:3483
0x725f28 maybe_warn_for_bound
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/builtins.c:3361
0x725f28 check_access(tree_node*, tree_node*, tree_node*, tree_node*,
tree_node*, access_mode, access_data const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/builtins.c:4071
0x7295cf expand_builtin_strncat
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/builtins.c:5284
0x72c136 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/builtins.c:8665
0x849652 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/expr.c:11243
0x74b73e expand_expr
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/expr.h:282
0x74b73e expand_call_stmt
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/cfgexpand.c:2703
0x74b73e expand_gimple_stmt_1
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/cfgexpand.c:3686
0x74b73e expand_gimple_stmt
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-x86_64/build/gcc/cfgexpand.c:3851
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.
