new warnings building cp-demangle.c

[Janis Johnson]

On Tue, 2009-05-19 at 10:28 +1000, Ben Elliston wrote:
> Hi Ian
> 
> In the last couple of days, I have started seeing the following warnings
> when building target-libiberty:
> 
> /home/bje/source/gcc-clean/libiberty/cp-demangle.c:723: warning: logical ‘and’ of mutually exclusive tests is always false
> /home/bje/source/gcc-clean/libiberty/cp-demangle.c:742: warning: logical ‘and’ of mutually exclusive tests is always false
> 
> The code around line 723 is:
> 
>   if (p == NULL
>       || name == NULL
>       || (kind < gnu_v3_complete_object_ctor
>           && kind > gnu_v3_complete_object_allocating_ctor))
>     return 0;
> 
> (and similarly for line 742).  A bug?

A much-discussed bug: http://gcc.gnu.org/PR40172

Janis