https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96729
Bug ID: 96729
Summary: hang on x86_64-linux-gnu with `-g -O3`
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: cnsun at uwaterloo dot ca
Target Milestone: ---
$ timeout -s 9 60 gcc-trunk -g -O3 t.c
Killed
$
$ cat t.c
int a, b, d, e;
int c[9][4];
int main() {
for (;;) {
long g;
if (e)
continue;
d = 3;
for (; d < 22; d++) {
a = 0;
for (; a < 55; a = a + 6) {
b = 0;
for (; b < 9; b++) {
g = 0;
c[b][g] = 3;
}
}
}
}
}
$
$ 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/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.uva1EAuUpA-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20200820 (experimental) [master revision
:01cb32abf:04e23a4051fb3c049f85b9e6e2fc58f937337aff] (GCC)
$
$ gcc-trunk -g -O2 t.c
$
$
