re PR target/59799 (aarch64_pass_by_reference never passes arrays by value,…

re PR target/59799 (aarch64_pass_by_reference never passes arrays by value, contrary to ABI documentation)

2014-02-19  Michael Hudson-Doyle  <michael.hudson@linaro.org>

	 PR target/59799
	* config/aarch64/aarch64.c (aarch64_pass_by_reference): The rules for
	passing arrays in registers are the same as for structs, so remove the
	special case for them.

From-SVN: r207908

gcc/ChangeLog

+2014-02-19  Michael Hudson-Doyle  <michael.hudson@linaro.org>
+
+	 PR target/59799
+	* config/aarch64/aarch64.c (aarch64_pass_by_reference): The rules for
+	passing arrays in registers are the same as for structs, so remove the
+	special case for them.
+
 2014-02-19  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: For a bit-field

gcc/config/aarch64/aarch64.c

@@ -1197,14 +1197,10 @@ aarch64_pass_by_reference (cumulative_args_t pcum ATTRIBUTE_UNUSED,
   size = (mode == BLKmode && type)
     ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode);
 
-  if (type)
+  /* Aggregates are passed by reference based on their size.  */
+  if (type && AGGREGATE_TYPE_P (type))
     {
-      /* Arrays always passed by reference.  */
-      if (TREE_CODE (type) == ARRAY_TYPE)
-	return true;
-      /* Other aggregates based on their size.  */
-      if (AGGREGATE_TYPE_P (type))
-	size = int_size_in_bytes (type);
+      size = int_size_in_bytes (type);
     }
 
   /* Variable sized arguments are always returned by reference.  */