http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59835
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- This boils down to -O2 -mavx512f typedef int V __attribute__ ((vector_size (8))); V foo (char x) { return (V) __builtin_ia32_vec_init_v8qi (x, x, x, x, x, x, x, x); } I think, except that for some weird reasons in this shorter testcase we get: pr59835.c: In function ‘foo’: pr59835.c:7:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90) ICE and with the larger one LRA just keeps iterating forever.