gimple.c (gimple_call_builtin_p): New function.

	* gimple.c (gimple_call_builtin_p): New function.
	* gimple.h (gimple_call_builtin_p): Declare.
	* tree-cfg.c (make_edges): Produce edge from BUILT_IN_RETURN
	to exit.
	(execute_warn_function_return): BUILT_IN_RETURN is return.
	(split_critical_edges): Return edges are not critical.
	(is_ctrl_altering_stmt): Builtin_in_return is altering.
	(gimple_verify_flow_info): Handle built_in_return.
	(execute_warn_function_return): Handle built_in_return.
	* ipa-pure-const.c (check_call): Ignore builtin_return.

	* gcc.dg/builtin-apply4.c: Compile with -Wmissing-return.

From-SVN: r160078

gcc/ChangeLog

+2010-05-31  Jan Hubicka  <jh@suse.cz>
+
+	* gimple.c (gimple_call_builtin_p): New function.
+	* gimple.h (gimple_call_builtin_p): Declare.
+	* tree-cfg.c (make_edges): Produce edge from BUILT_IN_RETURN
+	to exit.
+	(execute_warn_function_return): BUILT_IN_RETURN is return.
+	(split_critical_edges): Return edges are not critical.
+	(is_ctrl_altering_stmt): Builtin_in_return is altering.
+	(gimple_verify_flow_info): Handle built_in_return.
+	(execute_warn_function_return): Handle built_in_return.
+	* ipa-pure-const.c (check_call): Ignore builtin_return.
+
 2010-05-31  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/44337

gcc/testsuite/ChangeLog

+2010-05-31  Jan Hubicka  <jh@suse.cz>
+
+	* gcc.dg/builtin-apply4.c: Compile with -Wmissing-return.
+
 2010-05-31  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/44337

gcc/testsuite/gcc.dg/builtin-apply4.c

 /* PR tree-optimization/20076 */
-/* { dg-options "-O2" } */
+/* { dg-options "-O2 -Wmissing-noreturn" } */
 /* { dg-options "-O2 -mno-mmx" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
 /* { dg-do run } */