[AArch64] Prevent generic pipeline description from dominating other pipeline descriptions.

gcc/
	* config/aarch64/aarch64.md (generic_sched): New.
	* config/aarch64/aarch64-generic.md (load): Make conditional
	on generic_sched attribute.
	(nonload): Likewise.

From-SVN: r202448

gcc/ChangeLog

+2013-09-10  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	* config/aarch64/aarch64.md (generic_sched): New.
+	* config/aarch64/aarch64-generic.md (load): Make conditional
+	on generic_sched attribute.
+	(nonload): Likewise.
+
 2013-09-10  Jan Hubicka  <jh@suse.cz>
 
 	* lto-cgraph.c: Include ipa-utils.h.

gcc/config/aarch64/aarch64-generic.md

@@ -30,9 +30,11 @@
 	(const_string "no")))
 
 (define_insn_reservation "load" 2
-  (eq_attr "is_load" "yes")
+  (and (eq_attr "generic_sched" "yes")
+       (eq_attr "is_load" "yes"))
   "core")
 
 (define_insn_reservation "nonload" 1
-  (eq_attr "is_load" "no")
+  (and (eq_attr "generic_sched" "yes")
+       (eq_attr "is_load" "no"))
   "core")

gcc/config/aarch64/aarch64.md

@@ -308,6 +308,14 @@
 ;; Processor types.
 (include "aarch64-tune.md")
 
+;; True if the generic scheduling description should be used.
+
+(define_attr "generic_sched" "yes,no"
+  (const (if_then_else
+          (eq_attr "tune" "large,small,cortexa53")
+          (const_string "no")
+          (const_string "yes"))))
+
 ;; Scheduling
 (include "aarch64-generic.md")
 (include "large.md")