re PR tree-optimization/49735 (mips64-elf libgcc build fails with apparently infinite recursion.)

        PR middle-end/49735
        * gcc.c-torture/compile/pr49735.c: New testcase
        * ipa-inline.c (recursive_inlining): Look through aliases.

From-SVN: r177482

gcc/ChangeLog

+2011-08-05  Jan Hubicka  <jh@suse.cz>
+
+	PR middle-end/49735
+	* ipa-inline.c (recursive_inlining): Look through aliases.
+
 2011-08-05  Jason Merrill  <jason@redhat.com>
 
 	* config/i386/i386.c (setup_incoming_varargs_ms_64): Move

gcc/ipa-inline.c

@@ -1206,8 +1206,9 @@ recursive_inlining (struct cgraph_edge *edge,
       depth = 1;
       for (cnode = curr->caller;
 	   cnode->global.inlined_to; cnode = cnode->callers->caller)
-	if (node->decl == curr->callee->decl)
-	  depth++;
+	if (node->decl
+	    == cgraph_function_or_thunk_node (curr->callee, NULL)->decl)
+          depth++;
 
       if (!want_inline_self_recursive_call_p (curr, node, false, depth))
 	continue;

gcc/testsuite/ChangeLog

+2011-08-05  Jan Hubicka  <jh@suse.cz>
+
+	PR middle-end/49735
+	* gcc.c-torture/compile/pr49735.c: New testcase.
+
 2011-08-05  Jason Merrill  <jason@redhat.com>
 
 	PR c++/47453

gcc/testsuite/gcc.c-torture/compile/pr49735.c

+/* { dg-require-alias "" } */
+void bar (void);
+static void foo (void) { bar (); }
+void bar (void) __attribute__((alias("foo")));