[Bug tree-optimization/39345] [4.4 Regression] ICE in copy_tree_body_r, at tree-inline.c:1020

["hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from hjl dot tools at gmail dot com  2009-03-02 23:47 -------
can_be_nonlocal calls remap_type to return the remapped type. But
it isn't stored anywhere. Is that intentional? I don't know if
this patch makes any senses. It fixed ICE.

Index: tree-inline.c
===================================================================
--- tree-inline.c       (revision 144529)
+++ tree-inline.c       (working copy)
@@ -426,6 +426,23 @@ remap_type (tree type, copy_body_data *i
   return tmp;
 }

+static tree
+have_remap_type (tree type, copy_body_data *id)
+{
+  tree *node;
+
+  if (type == NULL)
+    return type;
+
+  /* See if we have remapped this type.  */
+  node = (tree *) pointer_map_contains (id->decl_map, type);
+  if (node)
+    return *node;
+  else
+    return NULL;
+}
+
+  /* The type only needs remapping if it's variably modified.  */
 /* Decide if DECL can be put into BLOCK_NONLOCAL_VARs.  */

 static bool
@@ -447,7 +464,7 @@ can_be_nonlocal (tree decl, copy_body_da
     return false;

   /* We must use global type.  */
-  if (TREE_TYPE (decl) != remap_type (TREE_TYPE (decl), id))
+  if (TREE_TYPE (decl) != have_remap_type (TREE_TYPE (decl), id))
     return false;

   /* Wihtout SSA we can't tell if variable is used.  */


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39345