[Bug tree-optimization/102056] VEC_PERM_EXPR of different sizes are not combined

2021-08-25 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102056 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug tree-optimization/102056] VEC_PERM_EXPR of different sizes are not combined

2021-08-25 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102056 --- Comment #1 from Andrew Pinski --- Actually VEC_PERM_EXPR of the same size is not optimized either: vector char g1(vector char a) { vector char t= __builtin_shuffle(a,(vector char){7,6,5,4,3,2,1,0,15,14,13,12,11,10,9,8,}); vector lon