[compiler-rt] r248686 - builtins: silence GCC warning

[Joerg Sonnenberger via llvm-commits]

On Sun, Sep 27, 2015 at 05:16:46PM -0000, Saleem Abdulrasool via llvm-commits wrote:
> If the builtins are built with libgcc as the unwind provider on ARM, the exposed
> _Unwind_SetIP is a macro.  This results in the following warning due to
> expansion of the argument:
> 
> warning: suggest parentheses around arithmetic in operand of ‘|’ [-Wparentheses]
> 
> Add a no-op set of parenthesis around the argument that will prevent this
> warning.

Why not in the macro?

Joerg