re PR rtl-optimization/12324 ([unit-at-a-time] not emitting function referenced…

re PR rtl-optimization/12324 ([unit-at-a-time] not emitting function referenced from a compound statement)

	PR optimization/12324
	* toplev.c  (rest_of_decl_compilation): Do not deffer when compiling
	in unit-at-a-time mode.

From-SVN: r74252

gcc/ChangeLog

+2003-12-03  Jan Hubicka  <jh@suse.cz>
+
+	PR optimization/12324
+	* toplev.c  (rest_of_decl_compilation): Do not deffer when compiling
+	in unit-at-a-time mode.
+
 2003-12-03  Jakub Jelinek  <jakub@redhat.com>
 
 	* expr.c (store_constructor): Only set RTX_UNCHANGING_P for

gcc/toplev.c

@@ -1920,8 +1920,15 @@ rest_of_decl_compilation (tree decl,
 	make_decl_rtl (decl, asmspec);
 
       /* Don't output anything when a tentative file-scope definition
-	 is seen.  But at end of compilation, do output code for them.  */
-      if ((at_end || !DECL_DEFER_OUTPUT (decl)) && !DECL_EXTERNAL (decl))
+	 is seen.  But at end of compilation, do output code for them.
+
+	 We do output all variables when unit-at-a-time is active and rely on
+	 callgraph code to defer them except for forward declarations
+	 (see gcc.c-torture/compile/920624-1.c) */
+      if ((at_end
+	   || !DECL_DEFER_OUTPUT (decl)
+	   || (flag_unit_at_a_time && DECL_INITIAL (decl)))
+	  && !DECL_EXTERNAL (decl))
 	{
 	  if (flag_unit_at_a_time && !cgraph_global_info_ready
 	      && TREE_CODE (decl) != FUNCTION_DECL && top_level)