On Thu, Jun 6, 2013 at 5:10 PM, Bernd Schmidt wrote:
> On 06/06/2013 04:52 PM, Richard Biener wrote:
>> + /* We cannot optimize away a static used in multiple functions (as
>> +might happen in C++). */
>> + && !DECL_NONLOCAL(var)
>>
>> it may also happen trivially with inlining.
On 06/06/2013 04:52 PM, Richard Biener wrote:
> + /* We cannot optimize away a static used in multiple functions (as
> +might happen in C++). */
> + && !DECL_NONLOCAL(var)
>
> it may also happen trivially with inlining. Which means a local pass can
> never
> "remove" vars safe
On Thu, Jun 6, 2013 at 3:42 PM, Bernd Schmidt wrote:
> There's a well-known benchmark which uselessly likes to declare local
> variables as static. There exist at least two implementations to demote
> these to normal register variables. See the discussion thread here:
> http://gcc.gnu.org/ml/gcc
There's a well-known benchmark which uselessly likes to declare local
variables as static. There exist at least two implementations to demote
these to normal register variables. See the discussion thread here:
http://gcc.gnu.org/ml/gcc-patches/2008-07/msg00982.html
These days, however, we can ski
