2011-12-13 Martin Jambor <mjambor@suse.cz>

	PR middle-end/50628
	* tree-sra.c (propagate_subaccesses_across_link): Do not propagate
	sub-accesses of scalar accesses.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182289 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3b28a5d..a9022e0 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
 2011-12-13  Martin Jambor  <mjambor@suse.cz>
 
+       PR middle-end/50628
+       * tree-sra.c (propagate_subaccesses_across_link): Do not propagate
+       sub-accesses of scalar accesses.
+
+2011-12-13  Martin Jambor  <mjambor@suse.cz>
+
        PR tree-optimization/51362
        * ipa-cp.c (estimate_local_effects): When estimated size of a
        specialized clone is zero, bump it to one.

diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index b921c76..84cbc84 100644 (file)
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -2266,21 +2266,23 @@ propagate_subaccesses_across_link (struct access *lacc, struct access *racc)
       || racc->grp_unscalarizable_region)
     return false;
 
-  if (!lacc->first_child && !racc->first_child
-      && is_gimple_reg_type (racc->type))
+  if (is_gimple_reg_type (racc->type))
     {
-      tree t = lacc->base;
-
-      lacc->type = racc->type;
-      if (build_user_friendly_ref_for_offset (&t, TREE_TYPE (t), lacc->offset,
-                                             racc->type))
-       lacc->expr = t;
-      else
+      if (!lacc->first_child && !racc->first_child)
        {
-         lacc->expr = build_ref_for_model (EXPR_LOCATION (lacc->base),
-                                           lacc->base, lacc->offset,
-                                           racc, NULL, false);
-         lacc->grp_no_warning = true;
+         tree t = lacc->base;
+
+         lacc->type = racc->type;
+         if (build_user_friendly_ref_for_offset (&t, TREE_TYPE (t),
+                                                 lacc->offset, racc->type))
+           lacc->expr = t;
+         else
+           {
+             lacc->expr = build_ref_for_model (EXPR_LOCATION (lacc->base),
+                                               lacc->base, lacc->offset,
+                                               racc, NULL, false);
+             lacc->grp_no_warning = true;
+           }
        }
       return false;
     }