https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87555
--- Comment #8 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to Hongtao.liu from comment #7) > (In reply to Hongtao.liu from comment #6) > > > So it there any canonical rtx for vec_merge? > > > (vec_merge (A B const_int 10) should abviously equal to (vec_merge B A > > > const_int 5) > > > > A and B here are 4-element vector. > > Similar for 8-element vector C, D. > (vec_merge (C D const_int 170 [0xaa])) equal to (vec_merge (D C const_int 85 > [0x55])) > > 16-element vector [0xaaaa] and [0x5555] And also (vec_merge (C D const_int 170 [0xaa])) equal to (vec_merge (D C const_int 85 [0x55])) is equal to (vec_select (vec_concat D C) (0,9,2,11,4,13,6,15))
