https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89247
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Richard Biener from comment #3) > Confirmed. I wonder what that source is autogenerated from/for ;) It's created with csmith. > > Btw, I can't reproduce on the GCC 7 branch. I can with: $ gcc-7 -O3 -w -ftree-vectorize -ftree-loop-vectorize prnew2.c -c prnew2.c: In function ‘func_20.constprop’: prnew2.c:4450:23: internal compiler error: in expand_LOOP_VECTORIZED, at internal-fn.c:2250 static int8_t * const func_20(uint32_t p_21, int8_t * p_22, struct S0 p_23, int8_t * p_24) ^~~~~~~ Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.opensuse.org/> for instructions.