https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112469
--- Comment #6 from JuzheZhong <juzhe.zhong at rivai dot ai> --- Thanks Richard. I tried your patch. It does fix this issue. But I wonder whether we should also adjust the following COND_LEN_UNARY too ? Like this: diff --git a/gcc/match.pd b/gcc/match.pd index f559bfa4f2b..145ea925fa9 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -8965,7 +8965,7 @@ and, (with { tree op_type = TREE_TYPE (@3); } (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op), op_type) && is_truth_type_for (op_type, TREE_TYPE (@0))) - (cond_op (bit_not @0) @2 @1))))) + (cond_op (bit_not @0) (view_convert @2) @1))))) (for uncond_op (UNCOND_UNARY) cond_op (COND_LEN_UNARY) @@ -8980,7 +8980,7 @@ and, (with { tree op_type = TREE_TYPE (@3); } (if (vectorized_internal_fn_supported_p (as_internal_fn (cond_op), op_type) && is_truth_type_for (op_type, TREE_TYPE (@0))) - (cond_op (bit_not @0) @2 @1 @4 @5))))) + (cond_op (bit_not @0) (view_convert @2) @1 @4 @5)))))