aarch64-protos.h (tune_params): Add align field.

2014-12-11  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-protos.h (tune_params): Add align field.
        * config/aarch64/aarch64.c (generic_tunings): Specify align.
        (cortexa53_tunings): Likewise.
        (cortexa57_tunings): Likewise.
        (thunderx_tunings): Likewise.
        (aarch64_override_options): Set align_loops, align_jumps,
        align_functions based on what the tuning struct.

From-SVN: r218645

gcc/ChangeLog

+2014-12-11  Andrew Pinski  <apinski@cavium.com>
+
+	* config/aarch64/aarch64-protos.h (tune_params): Add align field.
+	* config/aarch64/aarch64.c (generic_tunings): Specify align.
+	(cortexa53_tunings): Likewise.
+	(cortexa57_tunings): Likewise.
+	(thunderx_tunings): Likewise.
+	(aarch64_override_options): Set align_loops, align_jumps,
+	align_functions based on what the tuning struct.
+
 2014-12-11  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* doc/md.texi (Insn Lengths): Fix description of (pc).

gcc/config/aarch64/aarch64-protos.h

@@ -170,6 +170,7 @@ 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 int_reassoc_width;
   const int fp_reassoc_width;

gcc/config/aarch64/aarch64.c

@@ -323,6 +323,7 @@ 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),
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
@@ -337,6 +338,7 @@ 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)),
   2,	/* int_reassoc_width.  */
@@ -352,6 +354,7 @@ 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)),
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
@@ -366,6 +369,7 @@ 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),
   2,	/* int_reassoc_width.  */
   4,	/* fp_reassoc_width.  */
@@ -6762,6 +6766,18 @@ aarch64_override_options (void)
 #endif
     }
 
+  /* If not opzimizing for size, set the default
+     alignment to what the target wants */
+  if (!optimize_size)
+    {
+      if (align_loops <= 0)
+	align_loops = aarch64_tune_params->align;
+      if (align_jumps <= 0)
+	align_jumps = aarch64_tune_params->align;
+      if (align_functions <= 0)
+	align_functions = aarch64_tune_params->align;
+    }
+
   aarch64_override_options_after_change ();
 }