re PR c/35434 (ICE with attribute alias)

	PR c/35434
	* c-common.c (handle_alias_attribute): Disallow attribute for
	anything not a FUNCTION_DECL or VAR_DECL.

testsuite:
	* gcc.dg/attr-alias-4.c: New test.

From-SVN: r143998

gcc/ChangeLog

+2009-02-06  Joseph Myers  <joseph@codesourcery.com>
+
+	PR c/35434
+	* c-common.c (handle_alias_attribute): Disallow attribute for
+	anything not a FUNCTION_DECL or VAR_DECL.
+
 2009-02-06  Janis Johnson  <janis187@us.ibm.com>
 
 	PR c/39035

gcc/c-common.c

@@ -6015,7 +6015,12 @@ handle_alias_attribute (tree *node, tree name, tree args,
 {
   tree decl = *node;
 
-  if ((TREE_CODE (decl) == FUNCTION_DECL && DECL_INITIAL (decl))
+  if (TREE_CODE (decl) != FUNCTION_DECL && TREE_CODE (decl) != VAR_DECL)
+    {
+      warning (OPT_Wattributes, "%qE attribute ignored", name);
+      *no_add_attrs = true;
+    }
+  else if ((TREE_CODE (decl) == FUNCTION_DECL && DECL_INITIAL (decl))
       || (TREE_CODE (decl) != FUNCTION_DECL 
 	  && TREE_PUBLIC (decl) && !DECL_EXTERNAL (decl))
       /* A static variable declaration is always a tentative definition,

gcc/testsuite/ChangeLog

+2009-02-06  Joseph Myers  <joseph@codesourcery.com>
+
+	PR c/35434
+	* gcc.dg/attr-alias-4.c: New test.
+
 2009-02-06  Janis Johnson  <janis187@us.ibm.com>
 
 	PR c/39035

gcc/testsuite/gcc.dg/attr-alias-4.c

+/* ICE on invalid alias attribute: PR 35434.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+typedef int i __attribute__((alias("j"))); /* { dg-warning "ignored" } */