* c-decl.c (finish_function): Warn about a non-void function with

        no return statement and no abnormal exit.
        (current_function_returns_abnormally): New variable.
        (start_function): Clear it.
        (struct c_language_function): Add returns_abnormally.
        (push_c_function_context): Save it.
        (pop_c_function_context): Restore it.
        (builtin_function): Set TREE_THIS_VOLATILE on return fns.
        (grokdeclarator): Set C_FUNCTION_IMPLICIT_INT on functions without
        an explicit return type.
        * c-tree.h: Declare current_function_returns_abnormally.
        (C_FUNCTION_IMPLICIT_INT): New macro.
        * c-typeck.c (build_function_call): Set it.
        (c_expand_return): Set current_function_returns_value even if the
        value is erroneous.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49551 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/990117-1.c b/gcc/testsuite/gcc.dg/990117-1.c
index 2e7ea5a1551..606ba440ca8 100644
--- a/gcc/testsuite/gcc.dg/990117-1.c
+++ b/gcc/testsuite/gcc.dg/990117-1.c
@@ -18,4 +18,5 @@ foo ()
   for (i = 0; i < 10; i++)
     ;
   fabs (x - y);
+  return 0;
 }