Add testcase for -Wmissing-prototypes

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68212 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Sema/warn-missing-prototypes.c b/test/Sema/warn-missing-prototypes.c
new file mode 100644 (file)
index 0000000..20c28d0
--- /dev/null
+++ b/test/Sema/warn-missing-prototypes.c
@@ -0,0 +1,34 @@
+// RUN: clang -Wmissing-prototypes -fsyntax-only -Xclang -verify %s
+
+int f();
+
+int f(int x) { return x; } // expected-warning{{no previous prototype for function 'f'}}
+
+static int g(int x) { return x; }
+
+int h(int x) { return x; } // expected-warning{{no previous prototype for function 'h'}}
+
+static int g2();
+
+int g2(int x) { return x; }
+
+void test(void);
+
+int h3();
+int h4(int);
+int h4();
+
+void test(void) {
+  int h2(int x);
+  int h3(int x);
+  int h4();
+}
+
+int h2(int x) { return x; } // expected-warning{{no previous prototype for function 'h2'}}
+int h3(int x) { return x; } // expected-warning{{no previous prototype for function 'h3'}}
+int h4(int x) { return x; }
+
+int f2(int);
+int f2();
+
+int f2(int x) { return x; }