--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/PCH/functions.c	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,27 @@
+// Test this without pch.
+// RUN: %clang_cc1 -include %S/functions.h -fsyntax-only -verify %s
+
+// Test with pch.
+// RUN: %clang_cc1 -emit-pch -o %t %S/functions.h
+// RUN: %clang_cc1 -include-pch %t -fsyntax-only -verify %s 
+
+int f0(int x0, int y0, ...) { return x0 + y0; }
+
+float *test_f1(int val, double x, double y) {
+  if (val > 5)
+    return f1(x, y);
+  else
+    return f1(x); // expected-error{{too few arguments to function call}}
+                  // expected-note@functions.h:7{{'f1' declared here}}
+}
+
+void test_g0(int *x, float * y) {
+  g0(y); // expected-warning{{incompatible pointer types passing 'float *' to parameter of type 'int *'}}
+         // expected-note@functions.h:9{{passing argument to parameter here}}
+  g0(x); 
+}
+
+void __attribute__((noreturn)) test_abort(int code) {
+  do_abort(code);
+}
+