https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101562
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Slightly modified testcase started to ICE with r5-424-g807e902eea17f3132488c256c963823976b2348c aka wide_int merge though: struct S { char c; }; void g (struct S a, struct S b); void f () { struct S x[1]; *(short *)&x[0] = 256; g (x[0], x[1]); return; }