This patch makes pattern recognisers do their own checking for vector
types and target support. Previously some recognisers did this
themselves and some left it to vect_pattern_recog_1.
Doing this means we can get rid of the type_in argument, which was
ignored if the recogniser did its own checking. It also means
we create fewer junk statements.
2018-06-20 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vectorizer.h (NUM_PATTERNS, vect_recog_func_ptr): Move to
tree-vect-patterns.c.
* tree-vect-patterns.c (vect_supportable_direct_optab_p): New function.
(vect_recog_dot_prod_pattern): Use it. Remove the type_in argument.
(vect_recog_sad_pattern): Likewise.
(vect_recog_widen_sum_pattern): Likewise.
(vect_recog_pow_pattern): Likewise. Check for a null vectype.
(vect_recog_widen_shift_pattern): Remove the type_in argument.
(vect_recog_rotate_pattern): Likewise.
(vect_recog_mult_pattern): Likewise.
(vect_recog_vector_vector_shift_pattern): Likewise.
(vect_recog_divmod_pattern): Likewise.
(vect_recog_mixed_size_cond_pattern): Likewise.
(vect_recog_bool_pattern): Likewise.
(vect_recog_mask_conversion_pattern): Likewise.
(vect_try_gather_scatter_pattern): Likewise.
(vect_recog_widen_mult_pattern): Likewise. Check for a null vectype.
(vect_recog_over_widening_pattern): Likewise.
(vect_recog_gather_scatter_pattern): Likewise.
(vect_recog_func_ptr): Move from tree-vectorizer.h
(vect_vect_recog_func_ptrs): Move further down the file.
(vect_recog_func): Likewise. Remove the third argument.
(NUM_PATTERNS): Define based on vect_vect_recog_func_ptrs.
(vect_pattern_recog_1): Expect the pattern function to do any
necessary target tests. Also expect it to provide a vector type.
Remove the type_in handling.
From-SVN: r261791
