tm.texi (TARGET_PROMOTE_FUNCTION_MODE): Add documentation for for_return == 2.

2009-08-12  Paolo Bonzini  <bonzini@gnu.org>

	* doc/tm.texi (TARGET_PROMOTE_FUNCTION_MODE): Add documentation
	for for_return == 2.
	* function.c (assign_parm_setup_reg): Use for_return == 2, improve
	comments.
	* calls.c (expand_call): Fix typo.
	* explow.c (promote_decl_mode): Use for_return == 2 for RESULT_DECL
	and PARM_DECL.
	* stmt.c (expand_value_return): Use promote_function_mode to copy out
	of pseudo.
	* targhooks.c (default_promote_function_mode): Handle for_return == 2.
	* config/cris/cris.c (cris_promote_function_mode): Likewise.
	* config/mmix/mmix.c (mmix_promote_function_mode): Likewise.
	* config/pa/pa.c (pa_promote_function_mode): Likewise.

From-SVN: r150700

1 files changed, 7 insertions, 8 deletions

diff --git a/gcc/stmt.c b/gcc/stmt.c
index 29bcf87..fe60ba6 100644
--- a/gcc/stmt.c
+++ b/gcc/stmt.c
@@ -1511,25 +1511,24 @@ expand_naked_return (void)
 static void
 expand_value_return (rtx val)
 {
-  /* Copy the value to the return location
-     unless it's already there.  */
+  /* Copy the value to the return location unless it's already there.  */
 
   tree decl = DECL_RESULT (current_function_decl);
   rtx return_reg = DECL_RTL (decl);
   if (return_reg != val)
     {
-      int unsignedp;
+      tree funtype = TREE_TYPE (current_function_decl);
+      tree type = TREE_TYPE (decl);
+      int unsignedp = TYPE_UNSIGNED (type);
       enum machine_mode old_mode = DECL_MODE (decl);
-      enum machine_mode mode = promote_decl_mode (decl, &unsignedp);
+      enum machine_mode mode = promote_function_mode (type, old_mode,
+						      &unsignedp, funtype, 1);
 
       if (mode != old_mode)
 	val = convert_modes (mode, old_mode, val, unsignedp);
 
       if (GET_CODE (return_reg) == PARALLEL)
-	{
-          tree type = TREE_TYPE (decl);
-	  emit_group_load (return_reg, val, type, int_size_in_bytes (type));
-	}
+	emit_group_load (return_reg, val, type, int_size_in_bytes (type));
       else
 	emit_move_insn (return_reg, val);
     }