[AArch64] Add TARGET_MIN_DIVISIONS_FOR_RECIP_MUL

2014-12-18  Wilco Dijkstra  <wilco.dijkstra@arm.com>

	* gcc/config/aarch64/aarch64.c (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL):
	Define.
	(aarch64_min_divisions_for_recip_mul): New function.

From-SVN: r218866

gcc/ChangeLog

 2014-12-18  Wilco Dijkstra  <wilco.dijkstra@arm.com>
 
+	* gcc/config/aarch64/aarch64.c (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL):
+	Define.
+	(aarch64_min_divisions_for_recip_mul): New function.
+
+2014-12-18  Wilco Dijkstra  <wilco.dijkstra@arm.com>
+
 	* config/aarch64/aarch64-protos.h (tune-params): Add code alignment
 	tuning parameters.
 	* gcc/config/aarch64/aarch64.c (generic_tunings): Add code alignment

gcc/config/aarch64/aarch64.c

@@ -472,6 +472,12 @@ static const char * const aarch64_condition_codes[] =
   "hi", "ls", "ge", "lt", "gt", "le", "al", "nv"
 };
 
+static unsigned int
+aarch64_min_divisions_for_recip_mul (enum machine_mode mode ATTRIBUTE_UNUSED)
+{
+  return 2;
+}
+
 static int
 aarch64_reassociation_width (unsigned opc ATTRIBUTE_UNUSED,
 			     enum machine_mode mode)
@@ -11049,6 +11055,9 @@ aarch64_gen_adjusted_ldpstp (rtx *operands, bool load,
 #undef TARGET_MEMORY_MOVE_COST
 #define TARGET_MEMORY_MOVE_COST aarch64_memory_move_cost
 
+#undef TARGET_MIN_DIVISIONS_FOR_RECIP_MUL
+#define TARGET_MIN_DIVISIONS_FOR_RECIP_MUL aarch64_min_divisions_for_recip_mul
+
 #undef TARGET_MUST_PASS_IN_STACK
 #define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size