https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111070
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2023-08-20 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Testcase for easy access: ``` /* common */ char c; /* arrays must be 8 byte aligned, regardless of size */ char c_ary[1]; /* data */ char d = 1; char d_ary[1] = {1}; int main () { if (((unsigned long)&c_ary[0] & 7) != 0) return 1; if (((unsigned long)&d_ary[0] & 7) != 0) return 1; return 0; } ``` I am 99% sure it was caused by r14-3288-g482551a79a3d3f .