[AArch64] Generalize code alignment

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
	tuning parameters.
	(cortexa53_tunings): Likewise.
	(cortexa57_tunings): Likewise.
	(thunderx_tunings): Likewise.
	(aarch64_override_options): Use new alignment tunings.

From-SVN: r218865

gcc/ChangeLog

+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
+	tuning parameters.
+	(cortexa53_tunings): Likewise.
+	(cortexa57_tunings): Likewise.
+	(thunderx_tunings): Likewise.
+	(aarch64_override_options): Use new alignment tunings.
+
 2014-12-18  Martin Liska  <mliska@suse.cz>
 
 	PR tree-optimization/64330

gcc/config/aarch64/aarch64-protos.h

@@ -170,8 +170,10 @@ struct tune_params
   const struct cpu_vector_cost *const vec_costs;
   const int memmov_cost;
   const int issue_rate;
-  const int align;
   const unsigned int fuseable_ops;
+  const int function_align;
+  const int jump_align;
+  const int loop_align;
   const int int_reassoc_width;
   const int fp_reassoc_width;
   const int vec_reassoc_width;

gcc/config/aarch64/aarch64.c

@@ -323,8 +323,10 @@ static const struct tune_params generic_tunings =
   &generic_vector_cost,
   NAMED_PARAM (memmov_cost, 4),
   NAMED_PARAM (issue_rate, 2),
-  NAMED_PARAM (align, 4),
   NAMED_PARAM (fuseable_ops, AARCH64_FUSE_NOTHING),
+  8,	/* function_align.  */
+  8,	/* jump_align.  */
+  4,	/* loop_align.  */
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
   1	/* vec_reassoc_width.  */
@@ -338,9 +340,11 @@ static const struct tune_params cortexa53_tunings =
   &generic_vector_cost,
   NAMED_PARAM (memmov_cost, 4),
   NAMED_PARAM (issue_rate, 2),
-  NAMED_PARAM (align, 8),
   NAMED_PARAM (fuseable_ops, (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD
                              | AARCH64_FUSE_MOVK_MOVK | AARCH64_FUSE_ADRP_LDR)),
+  8,	/* function_align.  */
+  8,	/* jump_align.  */
+  4,	/* loop_align.  */
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
   1	/* vec_reassoc_width.  */
@@ -354,8 +358,10 @@ static const struct tune_params cortexa57_tunings =
   &cortexa57_vector_cost,
   NAMED_PARAM (memmov_cost, 4),
   NAMED_PARAM (issue_rate, 3),
-  NAMED_PARAM (align, 8),
   NAMED_PARAM (fuseable_ops, (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD | AARCH64_FUSE_MOVK_MOVK)),
+  16,	/* function_align.  */
+  8,	/* jump_align.  */
+  4,	/* loop_align.  */
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
   1	/* vec_reassoc_width.  */
@@ -369,8 +375,10 @@ static const struct tune_params thunderx_tunings =
   &generic_vector_cost,
   NAMED_PARAM (memmov_cost, 6),
   NAMED_PARAM (issue_rate, 2),
-  NAMED_PARAM (align, 8),
   NAMED_PARAM (fuseable_ops, AARCH64_FUSE_CMP_BRANCH),
+  8,	/* function_align.  */
+  8,	/* jump_align.  */
+  8,	/* loop_align.  */
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
   1	/* vec_reassoc_width.  */
@@ -6771,11 +6779,11 @@ aarch64_override_options (void)
   if (!optimize_size)
     {
       if (align_loops <= 0)
-	align_loops = aarch64_tune_params->align;
+	align_loops = aarch64_tune_params->loop_align;
       if (align_jumps <= 0)
-	align_jumps = aarch64_tune_params->align;
+	align_jumps = aarch64_tune_params->jump_align;
       if (align_functions <= 0)
-	align_functions = aarch64_tune_params->align;
+	align_functions = aarch64_tune_params->function_align;
     }
 
   aarch64_override_options_after_change ();