r333283 - [Sema] Add tests for weak functions

[Jonas Hahnfeld via cfe-commits]

Author: hahnfeld
Date: Fri May 25 08:56:12 2018
New Revision: 333283

URL: http://llvm.org/viewvc/llvm-project?rev=333283&view=rev
Log:
[Sema] Add tests for weak functions

I found these checks to be missing, just add some simple cases.

Differential Revision: https://reviews.llvm.org/D47200

Modified:
    cfe/trunk/test/Sema/attr-weak.c

Modified: cfe/trunk/test/Sema/attr-weak.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/attr-weak.c?rev=333283&r1=333282&r2=333283&view=diff
==============================================================================
--- cfe/trunk/test/Sema/attr-weak.c (original)
+++ cfe/trunk/test/Sema/attr-weak.c Fri May 25 08:56:12 2018
@@ -1,7 +1,9 @@
 // RUN: %clang_cc1 -verify -fsyntax-only %s
 
+extern int f0() __attribute__((weak));
 extern int g0 __attribute__((weak));
 extern int g1 __attribute__((weak_import));
+int f2() __attribute__((weak));
 int g2 __attribute__((weak));
 int g3 __attribute__((weak_import)); // expected-warning {{'weak_import' attribute cannot be specified on a definition}}
 int __attribute__((weak_import)) g4(void);
@@ -11,6 +13,7 @@ void __attribute__((weak_import)) g5(voi
 struct __attribute__((weak)) s0 {}; // expected-warning {{'weak' attribute only applies to variables, functions, and classes}}
 struct __attribute__((weak_import)) s1 {}; // expected-warning {{'weak_import' attribute only applies to variables and functions}}
 
+static int f() __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
 static int x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
 
 // rdar://9538608