--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/Wbuiltin-declaration-mismatch-5.c	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,19 @@
+/* PR testsuite/88098 - FAIL: gcc.dg/Wbuiltin-declaration-mismatch-4.c
+   { dg-do compile }
+   { dg-options "-Wbuiltin-declaration-mismatch -fshort-enums" } */
+
+int abs ();
+double fabs ();     /* { dg-message "built-in .fabs. declared here" } */
+
+enum E { e0 } e;
+
+int i;
+double d;
+
+void test_short_enums (void)
+{
+  /* enum e promotes to int.  */
+  i = abs (e);
+
+  d = fabs (e);     /* { dg-warning ".fabs. argument 1 promotes to .int. where .double. is expected in a call to built-in function declared without prototype" } */
+}