On Tue, Oct 1, 2013 at 7:31 PM, Cong Hou wrote:
> The current uniform_vector_p() function only returns non-NULL when the
> vector is directly a uniform vector. For example, for the following
> gimple code:
>
> vect_cst_.15_91 = {_9, _9, _9, _9, _9, _9, _9, _9};
>
>
> The current implementation can
On Tue, Oct 1, 2013 at 2:37 PM, Xinliang David Li wrote:
> On Tue, Oct 1, 2013 at 10:31 AM, Cong Hou wrote:
>> The current uniform_vector_p() function only returns non-NULL when the
>> vector is directly a uniform vector. For example, for the following
>> gimple code:
>>
>> vect_cst_.15_91 = {_9,
Actually I will introduce optimizations in the next patch. Currently
the function uniform_vector_p () is rarely used in GCC, but there are
certainly some optimization opportunities with the help of this
function.
For example, when we widen a vector with 8 identical element of short
type to two vec
On Tue, Oct 1, 2013 at 10:31 AM, Cong Hou wrote:
> The current uniform_vector_p() function only returns non-NULL when the
> vector is directly a uniform vector. For example, for the following
> gimple code:
>
> vect_cst_.15_91 = {_9, _9, _9, _9, _9, _9, _9, _9};
>
>
> The current implementation ca
The current uniform_vector_p() function only returns non-NULL when the
vector is directly a uniform vector. For example, for the following
gimple code:
vect_cst_.15_91 = {_9, _9, _9, _9, _9, _9, _9, _9};
The current implementation can only detect that {_9, _9, _9, _9, _9,
_9, _9, _9} is a unifor
