Vendor import of clang release_32 branch r168974 (effectively, 3.2 RC2):

http://llvm.org/svn/llvm-project/cfe/branches/release_32@168974

1 files changed, 47 insertions, 0 deletions

diff --git a/test/Sema/warn-bad-function-cast.c b/test/Sema/warn-bad-function-cast.c
new file mode 100644
index 0000000..41a3f78
--- /dev/null
+++ b/test/Sema/warn-bad-function-cast.c
@@ -0,0 +1,47 @@
+// RUN: %clang_cc1 %s -fsyntax-only -Wno-unused-value -Wbad-function-cast -triple x86_64-unknown-unknown -verify
+// rdar://9103192
+
+void vf(void);
+int if1(void);
+char if2(void);
+long if3(void);
+float rf1(void);
+double rf2(void);
+_Complex double cf(void);
+enum e { E1 } ef(void);
+_Bool bf(void);
+char *pf1(void);
+int *pf2(void);
+
+void
+foo(void)
+{
+  /* Casts to void types are always OK.  */
+  (void)vf();
+  (void)if1();
+  (void)cf();
+  (const void)bf();
+  /* Casts to the same type or similar types are OK.  */
+  (int)if1();
+  (long)if2();
+  (char)if3();
+  (float)rf1();
+  (long double)rf2();
+  (_Complex float)cf();
+  (enum f { F1 })ef();
+  (_Bool)bf();
+  (void *)pf1();
+  (char *)pf2();
+  /* All following casts issue warning */
+  (float)if1(); /* expected-warning {{cast from function call of type 'int' to non-matching type 'float'}} */
+  (double)if2(); /* expected-warning {{cast from function call of type 'char' to non-matching type 'double'}} */
+  (_Bool)if3(); /* expected-warning {{cast from function call of type 'long' to non-matching type '_Bool'}} */
+  (int)rf1(); /* expected-warning {{cast from function call of type 'float' to non-matching type 'int'}} */
+  (long)rf2(); /* expected-warning {{cast from function call of type 'double' to non-matching type 'long'}} */
+  (double)cf(); /* expected-warning {{cast from function call of type '_Complex double' to non-matching type 'double'}} */
+  (int)ef(); /* expected-warning {{cast from function call of type 'enum e' to non-matching type 'int'}} */
+  (int)bf(); /* expected-warning {{cast from function call of type '_Bool' to non-matching type 'int'}} */
+  (__SIZE_TYPE__)pf1(); /* expected-warning {{cast from function call of type 'char *' to non-matching type 'unsigned long'}} */
+  (__PTRDIFF_TYPE__)pf2(); /* expected-warning {{cast from function call of type 'int *' to non-matching type 'long'}} */
+}
+