cgraphbuild.c (record_reference): Canonicalize constructor values.

	* cgraphbuild.c (record_reference): Canonicalize constructor
	values.
	* gimple-fold.c (canonicalize_constructor_val): Accept being called
	without function context.
	* cgraphunit.c (cgraph_finalize_compilation_unit): Clear
	current_function_decl and cfun.

From-SVN: r171903

gcc/ChangeLog

 2011-04-03  Michael Matz  <matz@suse.de>
 
+	* cgraphbuild.c (record_reference): Canonicalize constructor
+	values.
+	* gimple-fold.c (canonicalize_constructor_val): Accept being called
+	without function context.
+	* cgraphunit.c (cgraph_finalize_compilation_unit): Clear
+	current_function_decl and cfun.
+
+2011-04-03  Michael Matz  <matz@suse.de>
+
 	* tree.c (decl_init_priority_insert): Don't create entry for
 	default priority.
 	(decl_fini_priority_insert): Ditto.

gcc/cgraphbuild.c

@@ -53,6 +53,12 @@ record_reference (tree *tp, int *walk_subtrees, void *data)
   tree decl;
   struct record_reference_ctx *ctx = (struct record_reference_ctx *)data;
 
+  t = canonicalize_constructor_val (t);
+  if (!t)
+    t = *tp;
+  else if (t != *tp)
+    *tp = t;
+
   switch (TREE_CODE (t))
     {
     case VAR_DECL:

gcc/cgraphunit.c

@@ -1066,6 +1066,11 @@ cgraph_finalize_compilation_unit (void)
 {
   timevar_push (TV_CGRAPH);
 
+  /* If we're here there's no current function anymore.  Some frontends
+     are lazy in clearing these.  */
+  current_function_decl = NULL;
+  set_cfun (NULL);
+
   /* Do not skip analyzing the functions if there were errors, we
      miss diagnostics for following functions otherwise.  */
 

gcc/gimple-fold.c

@@ -106,7 +106,7 @@ can_refer_decl_in_current_unit_p (tree decl)
   return true;
 }
 
-/* CVAL is value taken from DECL_INITIAL of variable.  Try to transorm it into
+/* CVAL is value taken from DECL_INITIAL of variable.  Try to transform it into
    acceptable form for is_gimple_min_invariant.   */
 
 tree
@@ -131,10 +131,9 @@ canonicalize_constructor_val (tree cval)
 	      || TREE_CODE (base) == FUNCTION_DECL)
 	  && !can_refer_decl_in_current_unit_p (base))
 	return NULL_TREE;
-      if (base && TREE_CODE (base) == VAR_DECL)
+      if (cfun && base && TREE_CODE (base) == VAR_DECL)
 	add_referenced_var (base);
-      /* We never have the chance to fixup types in global initializers
-         during gimplification.  Do so here.  */
+      /* Fixup types in global initializers.  */
       if (TREE_TYPE (TREE_TYPE (cval)) != TREE_TYPE (TREE_OPERAND (cval, 0)))
 	cval = build_fold_addr_expr (TREE_OPERAND (cval, 0));
     }