https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120425
--- Comment #2 from congli <congli at smail dot nju.edu.cn> ---
(In reply to Andrew Pinski from comment #1)
> I don't get a seg fault but an abort.
Seems like you are true. The Compiler Explore shows segfault but I also got an
abort on one of my server. Since it is a reduced version, how about this:
```
unsigned g[256] = {0, 1996959894, 3993919788, 2567524794, 124634137,
1886057615, 3915621685, 2657392035, 249268274, 2044508324, 3772115230,
2547177864, 162941995, 2125561021, 3887607047, 2428444049, 498536548,
1789927666, 4089016648, 2227061214, 450548861, 1843258603, 4107580753,
2211677639, 325883990, 1684777152, 4251122042, 2321926636, 335633487,
1661365465, 4195302755, 2366115317, 997073096, 1281953886, 3579855332,
2724688242, 1006888145, 1258607687, 3524101629, 2768942443, 901097722,
1119000684, 3686517206, 2898065728, 853044451, 1172266101, 3705015759,
2882616665, 651767980, 1373503546, 3369554304, 3218104598, 565507253,
1454621731, 3485111705, 3099436303, 671266974, 1594198024, 3322730930,
2970347812, 795835527, 1483230225, 3244367275, 3060149565, 1994146192,
31158534, 2563907772, 4023717930, 1907459465, 112637215, 2680153253,
3904427059, 2013776290, 251722036, 2517215374, 3775830040, 2137656763,
141376813, 2439277719, 3865271297, 1802195444, 476864866, 2238001368,
4066508878, 1812370925, 453092731, 2181625025, 4111451223, 1706088902,
314042704, 2344532202, 4240017532, 1658658271, 366619977, 2362670323,
4224994405, 1303535960, 984961486, 2747007092, 3569037538, 1256170817,
1037604311, 2765210733, 3554079995, 1131014506, 879679996, 2909243462,
3663771856, 1141124467, 855842277, 2852801631, 3708648649, 1342533948,
654459306, 3188396048, 3373015174, 1466479909, 544179635, 3110523913,
3462522015, 1591671054, 702138776, 2966460450, 3352799412, 1504918807,
783551873, 3082640443, 3233442989, 3988292384, 2596254646, 62317068,
1957810842, 3939845945, 2647816111, 81470997, 1943803523, 3814918930,
2489596804, 225274430, 2053790376, 3826175755, 2466906013, 167816743,
2097651377, 4027552580, 2265490386, 503444072, 1762050814, 4150417245,
2154129355, 426522225, 1852507879, 4275313526, 2312317920, 282753626,
1742555852, 4189708143, 2394877945, 397917763, 1622183637, 3604390888,
2714866558, 953729732, 1340076626, 3518719985, 2797360999, 1068828381,
1219638859, 3624741850, 2936675148, 906185462, 1090812512, 3747672003,
2825379669, 829329135, 1181335161, 3412177804, 3160834842, 628085408,
1382605366, 3423369109, 3138078467, 570562233, 1426400815, 3317316542,
2998733608, 733239954, 1555261956, 3268935591, 3050360625, 752459403,
1541320221, 2607071920, 3965973030, 1969922972, 40735498, 2617837225,
3943577151, 1913087877, 83908371, 2512341634, 3803740692, 2075208622,
213261112, 2463272603, 3855990285, 2094854071, 198958881, 2262029012,
4057260610, 1759359992, 534414190, 2176718541, 4139329115, 1873836001,
414664567, 2282248934, 4279200368, 1711684554, 285281116, 2405801727,
4167216745, 1634467795, 376229701, 2685067896, 3608007406, 1308918612,
956543938, 2808555105, 3495958263, 1231636301, 1047427035, 2932959818,
3654703836, 1088359270, 936918000, 2847714899, 3736837829, 1202900863,
817233897, 3183342108, 3401237130, 1404277552, 615818150, 3134207493,
3453421203, 1423857449, 601450431, 3009837614, 3294710456, 1567103746,
711928724, 3020668471, 3272380065, 1510334235, 755167117};
int r[20] = {1911263494, 774465782, 4379194, 669572660, -1452495846,
-1658729425, 1103267782, -90393310, 1635864740, -1, -1238002948, -351663323,
-576056573, 1233623753, -1844776976, -1531764644, -319456054, 1797911602,
-684072473, -1155699931};
int gri(int i) {
asm volatile (
""
:
: "m"(r)
: "memory"
);
return r[i];
}
int f(int av) {
unsigned int aa = 4294967295;
for (int d = 0; d < av; ++d) {
int ab = gri(d);
aa = aa >> 8 ^ g[(aa ^ ab) & 255];
aa = aa >> 8 ^ g[(aa ^ (ab >> 8)) & 255];
aa = aa >> 8 ^ g[(aa ^ (ab >> 16)) & 255];
aa = aa >> 8 ^ g[(aa ^ (ab >> 24)) & 255];
}
aa = aa ^ 4294967295;
return aa;
}
int main() {
int k = 987751161, am = -1211051206;
int l = 0, q = 0;
if (am)
goto aq;
ao:
goto aw;
y:
k = -q + am - 1767812960;
aq:
q = -k - 54680564;
if ((f(20) + 1788482227) * q >= 0)
return 0;
aw:
l = -q - k - 54680564;
f(0);
if (l)
goto ao;
goto y;
}
```
I tried on my server and got a segfault.
