[LLVMbugs] [Bug 5605] horrible diagnostic for attribute applied to definition

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=5605

Kaelyn Uhrain <rikka at google.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |rikka at google.com
         Resolution|                            |FIXED

--- Comment #4 from Kaelyn Uhrain <rikka at google.com> 2012-06-21 17:54:52 CDT ---
With the 3.1 release, clang gives some warnings in the example code but
otherwise accepts it:

$ cat t.c
#define A __attribute__((cf_returns_retained))
void *f0() A
{}

$ clang -c t.c                                                                  
t.c:2:12: warning: GCC does not allow cf_returns_retained attribute in this
position on a function
      definition [-Wgcc-compat]
void *f0() A
           ^
t.c:1:26: note: expanded from macro 'A'
#define A __attribute__((cf_returns_retained))
                         ^
t.c:3:2: warning: control reaches end of non-void function [-Wreturn-type]
{}
 ^
2 warnings generated.

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