https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89530
Bug ID: 89530
Summary: Wrong debug informations for C array generated at -Og
[gcc-trunk]
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: dccitaliano at gmail dot com
Target Milestone: ---
$ cat a.c
int e, g;
short f;
char h;
short(a)(b) {}
int(c)(d) {}
void i() {
int j, k;
unsigned short l_1404[3][9] = {58143, 8, 5, 80};
for (; f; f = 0)
if (h)
e = l_1404[0][7];
else {
for (; g;)
j = k = c(j);
e = a(k);
}
optimize_me_not();
}
int main() { i(); }
$ cat outer.c
void optimize_me_not() {}
### -O0
Reading symbols from ./a.out...
(gdb) b 17
Breakpoint 1 at 0x40055c: file 3.c, line 17.
(gdb) r
Starting program: /home/davide/finished-reducing-gcc/a.out
Breakpoint 1, i () at 3.c:17
17 optimize_me_not();
(gdb) p l_1404[0][0]
$1 = 58143
### -Og
Reading symbols from ./a.out...
(gdb) b 17
Breakpoint 1 at 0x4004f5: file 3.c, line 17.
(gdb) r
Starting program: /home/davide/finished-reducing-gcc/a.out
Breakpoint 1, i () at 3.c:17
17 optimize_me_not();
(gdb) p l_1404[0][0]
$1 = 9
$ gcc-trunk --version
gcc-trunk (GCC) 9.0.1 20190227 (experimental) [trunk revision 269248]
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gdb-trunk --version
GNU gdb (GDB) 8.3.50.20190227-git
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
