re PR rtl-optimization/7189 (gcc -O2 -Wall does not print ``control reaches end…

re PR rtl-optimization/7189 (gcc -O2 -Wall does not print ``control reaches end of non-void function'' warning)

2003-03-10  Steven Bosscher  <s.bosscher@student.tudelft.nl>

	PR optimization/7189
	* toplev.c (rest_of_compilation):  Move
	check_function_return_warnings up to just after
	delete_unreachable_blocks.

From-SVN: r64076

gcc/toplev.c

@@ -2634,6 +2634,10 @@ rest_of_compilation (decl)
 
   delete_unreachable_blocks ();
 
+  /* We have to issue these warnings now already, because CFG cleanups
+     further down may destroy the required information.  */
+  check_function_return_warnings ();
+
   /* Turn NOTE_INSN_PREDICTIONs into branch predictions.  */
   if (flag_guess_branch_prob)
     {
@@ -3191,8 +3195,6 @@ rest_of_compilation (decl)
   open_dump_file (DFI_life, decl);
   regclass_init ();
 
-  check_function_return_warnings ();
-
 #ifdef ENABLE_CHECKING
   verify_flow_info ();
 #endif