* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Procedure>: Do not set

	an alignment on fields of the RETURN type built for the CICO mechanism.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183611 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 2b9db09..bfc7f2e 100644 (file)
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,8 +1,13 @@
 2012-01-27  Eric Botcazou  <ebotcazou@adacore.com>
 
+       * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Procedure>: Do not set
+       an alignment on fields of the RETURN type built for the CICO mechanism.
+
+2012-01-27  Eric Botcazou  <ebotcazou@adacore.com>
+
        * gcc-interface/trans.c (gnat_to_gnu): Avoid making a SAVE_EXPR for
        a call to a function that returns an unconstrained type with default
-       discriminant.  Similarly, avoid doing the conversion to the nominal
+       discriminant.  Similarly, avoid doing the conversion to the nominal
        result type in this case.
 
 2012-01-27  Eric Botcazou  <ebotcazou@adacore.com>

diff --git a/gcc/ada/gcc-interface/decl.c b/gcc/ada/gcc-interface/decl.c
index bc0804a..a71c86f 100644 (file)
--- a/gcc/ada/gcc-interface/decl.c
+++ b/gcc/ada/gcc-interface/decl.c
@@ -4305,7 +4305,9 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
 
                    gnu_return_type = gnu_new_ret_type;
                    TYPE_NAME (gnu_return_type) = get_identifier ("RETURN");
-                   /* Set a default alignment to speed up accesses.  */
+                   /* Set a default alignment to speed up accesses.  But we
+                      shouldn't increase the size of the structure too much,
+                      lest it doesn't fit in return registers anymore.  */
                    TYPE_ALIGN (gnu_return_type)
                      = get_mode_alignment (ptr_mode);
                  }
@@ -4314,9 +4316,6 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
                  = create_field_decl (gnu_param_name, gnu_param_type,
                                       gnu_return_type, NULL_TREE, NULL_TREE,
                                       0, 0);
-               /* Set a minimum alignment to speed up accesses.  */
-               if (DECL_ALIGN (gnu_field) < TYPE_ALIGN (gnu_return_type))
-                 DECL_ALIGN (gnu_field) = TYPE_ALIGN (gnu_return_type);
                Sloc_to_locus (Sloc (gnat_param),
                               &DECL_SOURCE_LOCATION (gnu_field));
                DECL_CHAIN (gnu_field) = gnu_field_list;