X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Ftree-inline.c;h=ae773f63b58eb67a17ab4b45e92562dcb756eb26;hp=fb55346b1f45215200e1277ffe0ef40e240b2d73;hb=126588a30d610641389529d156dda71e68e7e829;hpb=8bec2124c650219700a85ec628dd269110dec41d

diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index fb55346b1f4..ae773f63b58 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -1,6 +1,6 @@
 /* Tree inlining.
-   Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
-   Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
+   2012 Free Software Foundation, Inc.
    Contributed by Alexandre Oliva <aoliva@redhat.com>
 
 This file is part of GCC.
@@ -2809,9 +2809,8 @@ declare_return_variable (copy_body_data *id, tree return_slot, tree modify_dest,
   else
     caller_type = TREE_TYPE (TREE_TYPE (callee));
 
-  /* We don't need to do anything for functions that don't return
-     anything.  */
-  if (!result || VOID_TYPE_P (callee_type))
+  /* We don't need to do anything for functions that don't return anything.  */
+  if (VOID_TYPE_P (callee_type))
     return NULL_TREE;
 
   /* If there was a return slot, then the return value is the
@@ -3399,8 +3398,6 @@ estimate_operator_cost (enum tree_code code, eni_weights *weights,
     case VEC_PACK_TRUNC_EXPR:
     case VEC_PACK_SAT_EXPR:
     case VEC_PACK_FIX_TRUNC_EXPR:
-    case VEC_EXTRACT_EVEN_EXPR:
-    case VEC_EXTRACT_ODD_EXPR:
     case VEC_WIDEN_LSHIFT_HI_EXPR:
     case VEC_WIDEN_LSHIFT_LO_EXPR:
 
@@ -5042,6 +5039,7 @@ update_clone_info (copy_body_data * id)
 
    If non-NULL ARGS_TO_SKIP determine function parameters to remove
    from new version.
+   If SKIP_RETURN is true, the new version will return void.
    If non-NULL BLOCK_TO_COPY determine what basic blocks to copy.
    If non_NULL NEW_ENTRY determine new entry BB of the clone.
 */
@@ -5049,7 +5047,8 @@ void
 tree_function_versioning (tree old_decl, tree new_decl,
 			  VEC(ipa_replace_map_p,gc)* tree_map,
 			  bool update_clones, bitmap args_to_skip,
-			  bitmap blocks_to_copy, basic_block new_entry)
+			  bool skip_return, bitmap blocks_to_copy,
+			  basic_block new_entry)
 {
   struct cgraph_node *old_version_node;
   struct cgraph_node *new_version_node;
@@ -5202,7 +5201,18 @@ tree_function_versioning (tree old_decl, tree new_decl,
     /* Add local vars.  */
     add_local_variables (DECL_STRUCT_FUNCTION (old_decl), cfun, &id, false);
 
-  if (DECL_RESULT (old_decl) != NULL_TREE)
+  if (DECL_RESULT (old_decl) == NULL_TREE)
+    ;
+  else if (skip_return && !VOID_TYPE_P (TREE_TYPE (DECL_RESULT (old_decl))))
+    {
+      DECL_RESULT (new_decl)
+	= build_decl (DECL_SOURCE_LOCATION (DECL_RESULT (old_decl)),
+		      RESULT_DECL, NULL_TREE, void_type_node);
+      DECL_CONTEXT (DECL_RESULT (new_decl)) = new_decl;
+      cfun->returns_struct = 0;
+      cfun->returns_pcc_struct = 0;
+    }
+  else
     {
       tree old_name;
       DECL_RESULT (new_decl) = remap_decl (DECL_RESULT (old_decl), &id);