https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90610
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
First change is in zbuf.c.170t.veclower21:
GOOD:
vect_shuffle3_high_369 = VEC_PERM_EXPR <vect__46.1053_372, vect_cst__502, {
0, 3 }>;
vect_shuffle3_low_444 = VEC_PERM_EXPR <vect_cst__502, vect__44.1050_442, { 3,
0 }>;
vect_shuffle3_high_368 = VEC_PERM_EXPR <vect_shuffle3_low_444,
vect__46.1053_372, { 0, 3 }>;
MEM[(float * *)vectp_vlzp.1055_503] = vect_shuffle3_low_371;
vectp_vlzp.1054_445 = vectp_vlzp.1055_503 + 16;
MEM[(float * *)vectp_vlzp.1054_445] = vect_shuffle3_high_369;
BAD:
vect_shuffle3_low_444 = VEC_PERM_EXPR <vect_cst__502, vect__44.1050_442, { 3,
0 }>;
vect_shuffle3_high_368 = VEC_PERM_EXPR <vect_shuffle3_low_444,
vect__46.1053_372, { 0, 3 }>;
MEM[(float * *)vectp_vlzp.1055_503] = vect_shuffle3_low_371;
vectp_vlzp.1054_445 = vectp_vlzp.1055_503 + 16;
MEM[(float * *)vectp_vlzp.1054_445] = vect_cst__502;
Type of vectors: vector(2) long unsigned int
@Richi: Is it enough to see the problem?
