commit 78770e0e5d9fef70679e1db4eb2fb06596fbb2f8
author Richard Sandiford <richard.sandiford@arm.com> Tue Aug 03 13:00:45 2021 +0100
committer Richard Sandiford <richard.sandiford@arm.com> Tue Aug 03 13:00:45 2021 +0100
tree 3ec61a5010e46ce53296a6c27a57de74492971a0
parent b585f0112f293ace8fadc0c7ace59230140b7472

aarch64: Add gather_load_xNN_cost tuning fields

This patch adds tuning fields for the total cost of a gather load
instruction.  Until now, we've costed them as one scalar load
per element instead.  Those scalar_load-based values are also
what the patch uses to fill in the new fields for existing
cost structures.

gcc/
	* config/aarch64/aarch64-protos.h (sve_vec_cost):
	Add gather_load_x32_cost and gather_load_x64_cost.
	* config/aarch64/aarch64.c (generic_sve_vector_cost)
	(a64fx_sve_vector_cost, neoversev1_sve_vector_cost): Update
	accordingly, using the values given by the scalar_load * number
	of elements calculation that we used previously.
	(aarch64_detect_vector_stmt_subtype): Use the new fields.