[Patch AArch64 3/4] De-const-ify struct tune_params

[Patch AArch64 3/4] De-const-ify struct tune_params

gcc/

	* config/aarch64/aarch64-protos.h (tune_params): Remove
	const from members.
	(aarch64_tune_params): Remove const, change to no longer be
	a pointer.
	* config/aarch64/aarch64.c (aarch64_tune_params): Remove const,
	change to no longer be a pointer, initialize to generic_tunings.
	(aarch64_min_divisions_for_recip_mul): Change dereference of
	aarch64_tune_params to member access.
	(aarch64_reassociation_width): Likewise.
	(aarch64_rtx_mult_cost): Likewise.
	(aarch64_address_cost): Likewise.
	(aarch64_branch_cost): Likewise.
	(aarch64_rtx_costs): Likewise.
	(aarch64_register_move_cost): Likewise.
	(aarch64_memory_move_cost): Likewise.
	(aarch64_sched_issue_rate): Likewise.
	(aarch64_builtin_vectorization_cost): Likewise.
	(aarch64_override_options): Take a copy of the selected tuning
	struct in to aarch64_tune_params, rather than just setting
	a pointer, change dereferences of aarch64_tune_params to member
	accesses.
	(aarch64_override_options_after_change): Change dereferences of
	aarch64_tune_params to member access.
	(aarch64_macro_fusion_p): Likewise.
	(aarch_macro_fusion_pair_p): Likewise.
	* config/aarch64/cortex-a57-fma-steering.c (gate): Likewise.

From-SVN: r225016