[Bug tree-optimization/54346] combine permutations

crazylht at gmail dot com gcc-bugzilla@gcc.gnu.org
Tue Jun 7 09:10:44 GMT 2022


--- Comment #4 from Hongtao.liu <crazylht at gmail dot com> ---
Now more x86 shuffle instrinsics are folded into gimple VEC_PERM_EXPR, I guess
we need some Gimple-level pattern match to simplify successive vec_perm_expr.

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