1 files changed, 41 insertions, 0 deletions
diff --git a/clang/test/Sema/knr-def-call.c b/clang/test/Sema/knr-def-call.c
new file mode 100644
index 0000000..f41275d
--- /dev/null
+++ b/clang/test/Sema/knr-def-call.c
@@ -0,0 +1,41 @@
+// RUN: %clang_cc1 -Wconversion -Wliteral-conversion -fsyntax-only -verify %s
+
+// C DR #316, PR 3626.
+void f0(a, b, c, d) int a,b,c,d; {}
+void t0(void) { 
+  f0(1);  // expected-warning{{too few arguments}}
+}
+
+void f1(a, b) int a, b; {}
+void t1(void) { 
+  f1(1, 2, 3); // expected-warning{{too many arguments}}
+}
+
+void f2(float); // expected-note{{previous declaration is here}}
+void f2(x) float x; { } // expected-warning{{promoted type 'double' of K&R function parameter is not compatible with the parameter type 'float' declared in a previous prototype}}
+
+typedef void (*f3)(void);
+f3 t3(int b) { return b? f0 : f1; } // okay
+
+// <rdar://problem/8193107>
+void f4() {
+    char *rindex();
+}
+
+char *rindex(s, c)
+     register char *s, c; // expected-warning{{promoted type 'char *' of K&R function parameter is not compatible with the parameter type 'const char *' declared in a previous prototype}}
+{
+  return 0;
+}
+
+// PR8314
+void proto(int);
+void proto(x) 
+     int x;
+{
+}
+
+void use_proto() {
+  proto(42.1); // expected-warning{{implicit conversion turns literal floating-point number into integer}}
+  (&proto)(42.1); // expected-warning{{implicit conversion turns literal floating-point number into integer}}
+}