Add test for overloading with _Complex in C

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64347 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Sema/overloadable-complex.c b/test/Sema/overloadable-complex.c
new file mode 100644 (file)
index 0000000..4df59aa
--- /dev/null
+++ b/test/Sema/overloadable-complex.c
@@ -0,0 +1,50 @@
+// RUN: clang -fsyntax-only -verify %s
+char *foo(float) __attribute__((__overloadable__)); // expected-note 3 {{candidate function}}
+
+void test_foo_1(float fv, double dv, float _Complex fc, double _Complex dc) {
+  char *cp1 = foo(fv);
+  char *cp2 = foo(dv);
+  // Note: GCC and EDG reject these two, but they are valid C99 conversions
+  char *cp3 = foo(fc);
+  char *cp4 = foo(dc);
+}
+
+int *foo(float _Complex) __attribute__((__overloadable__)); // expected-note 3 {{candidate function}}
+
+void test_foo_2(float fv, double dv, float _Complex fc, double _Complex dc) {
+  char *cp1 = foo(fv);
+  char *cp2 = foo(dv); // expected-error{{call to 'foo' is ambiguous; candidates are:}}
+  int *ip = foo(fc);
+  int *lp = foo(dc); // expected-error{{call to 'foo' is ambiguous; candidates are:}}
+}
+
+long *foo(double _Complex) __attribute__((__overloadable__)); // expected-note {{candidate function}}
+
+void test_foo_3(float fv, double dv, float _Complex fc, double _Complex dc) {
+  char *cp1 = foo(fv);
+  char *cp2 = foo(dv); // expected-error{{call to 'foo' is ambiguous; candidates are:}}
+  int *ip = foo(fc);
+  long *lp = foo(dc);
+}
+
+char *promote_or_convert(double _Complex) __attribute__((__overloadable__));  // expected-note 2 {{candidate function}}
+int *promote_or_convert(long double _Complex) __attribute__((__overloadable__)); // expected-note 2 {{candidate function}} 
+
+void test_promote_or_convert(float f, float _Complex fc) {
+  char *cp = promote_or_convert(fc); // expected-error{{call to 'promote_or_convert' is ambiguous; candidates are:}}
+  int *ip2 = promote_or_convert(f); // expected-error{{call to 'promote_or_convert' is ambiguous; candidates are:}}
+}
+
+char *promote_or_convert2(float) __attribute__((__overloadable__));
+int *promote_or_convert2(double _Complex) __attribute__((__overloadable__));
+
+void test_promote_or_convert2(float _Complex fc) {
+  int *cp = promote_or_convert2(fc);
+}
+
+char *promote_or_convert3(int _Complex) __attribute__((__overloadable__));
+int *promote_or_convert3(long _Complex) __attribute__((__overloadable__));
+
+void test_promote_or_convert3(short _Complex sc) {
+  char *cp = promote_or_convert3(sc);
+}