https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97832
--- Comment #24 from Hongtao.liu <crazylht at gmail dot com> ---
_233 = {f_im_36, f_re_35, f_re_35, f_re_35};
_217 = {f_re_35, f_im_36, f_im_36, f_im_36};
...
vect_x_re_55.15_227 = VEC_PERM_EXPR <vect_x_im_61.14_228, vect_x_im_61.13_230,
{ 0, 5, 6, 7 }>;
vect_x_re_55.23_211 = VEC_PERM_EXPR <vect_x_im_61.13_230,
vect_x_im_61.14_228, { 0, 5, 6, 7 }>;
...
vect_y_re_69.17_224 = .FNMA (vect_x_re_55.15_227, _233, vect_y_re_63.9_237);
vect_y_re_69.25_208 = .FNMA (vect_x_re_55.23_211, _217, vect_y_re_69.17_224);
is equal to
_233 = {f_im_36,f_im_36, f_im_36, f_im_36}
_217 = {f_re_35, f_re_35, f_re_35, f_re_35};
...
vect_y_re_69.17_224 = .FNMA (vect_x_im_61.14_228, _233, vect_y_re_63.9_237)
vect_y_re_69.25_208 = .FNMA (vect_x_im_61.13_230, _217, vect_y_re_69.17_224)
A simplication in match.pd?
