[ARM] Implement TARGET_SCHED_MACRO_FUSION_PAIR_P

	* config/arm/arm-protos.h (tune_params): Add fuseable_ops field.
	* config/arm/arm.c (arm_macro_fusion_p): New function.
	(arm_macro_fusion_pair_p): Likewise.
	(TARGET_SCHED_MACRO_FUSION_P): Define.
	(TARGET_SCHED_MACRO_FUSION_PAIR_P): Likewise.
	(ARM_FUSE_NOTHING): Likewise.
	(ARM_FUSE_MOVW_MOVT): Likewise.
	(arm_slowmul_tune, arm_fastmul_tune, arm_strongarm_tune,
	arm_xscale_tune, arm_9e_tune, arm_v6t2_tune, arm_cortex_tune,
	arm_cortex_a8_tune, arm_cortex_a7_tune, arm_cortex_a15_tune,
	arm_cortex_a53_tune, arm_cortex_a57_tune, arm_cortex_a9_tune,
	arm_cortex_a12_tune, arm_v7m_tune, arm_v6m_tune, arm_fa726te_tune
	arm_cortex_a5_tune): Specify fuseable_ops value.

From-SVN: r219470

gcc/ChangeLog

+2015-01-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/arm/arm-protos.h (tune_params): Add fuseable_ops field.
+	* config/arm/arm.c (arm_macro_fusion_p): New function.
+	(arm_macro_fusion_pair_p): Likewise.
+	(TARGET_SCHED_MACRO_FUSION_P): Define.
+	(TARGET_SCHED_MACRO_FUSION_PAIR_P): Likewise.
+	(ARM_FUSE_NOTHING): Likewise.
+	(ARM_FUSE_MOVW_MOVT): Likewise.
+	(arm_slowmul_tune, arm_fastmul_tune, arm_strongarm_tune,
+	arm_xscale_tune, arm_9e_tune, arm_v6t2_tune, arm_cortex_tune,
+	arm_cortex_a8_tune, arm_cortex_a7_tune, arm_cortex_a15_tune,
+	arm_cortex_a53_tune, arm_cortex_a57_tune, arm_cortex_a9_tune,
+	arm_cortex_a12_tune, arm_v7m_tune, arm_v6m_tune, arm_fa726te_tune
+	arm_cortex_a5_tune): Specify fuseable_ops value.
+
 2015-01-12  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR bootstrap/64561

gcc/config/arm/arm-protos.h

@@ -289,6 +289,8 @@ struct tune_params
   bool string_ops_prefer_neon;
   /* Maximum number of instructions to inline calls to memset.  */
   int max_insns_inline_memset;
+  /* Bitfield encoding the fuseable pairs of instructions.  */
+  unsigned int fuseable_ops;
 };
 
 extern const struct tune_params *current_tune;