On 11/09/14 14:55, Jiong Wang wrote:
On 11/09/14 14:43, Christophe Lyon wrote:
Hi Jiong,
On 9 September 2014 12:59, Ramana Radhakrishnan
wrote:
On Mon, Aug 18, 2014 at 11:31 AM, Jiong Wang wrote:
this patch enable auto-vectorization for copysignf by using vector
bit selection instruction o
On 11/09/14 14:43, Christophe Lyon wrote:
Hi Jiong,
On 9 September 2014 12:59, Ramana Radhakrishnan
wrote:
On Mon, Aug 18, 2014 at 11:31 AM, Jiong Wang wrote:
this patch enable auto-vectorization for copysignf by using vector
bit selection instruction on arm32 when neon available.
I've no
Hi Jiong,
On 9 September 2014 12:59, Ramana Radhakrishnan
wrote:
> On Mon, Aug 18, 2014 at 11:31 AM, Jiong Wang wrote:
>> this patch enable auto-vectorization for copysignf by using vector
>> bit selection instruction on arm32 when neon available.
>>
I've noticed that your new testcase fails (t
On Mon, Aug 18, 2014 at 11:31 AM, Jiong Wang wrote:
> this patch enable auto-vectorization for copysignf by using vector
> bit selection instruction on arm32 when neon available.
>
> for a simple testcase:
>
> for (i = 0; i < N; i++)
> r[i] = __builtin_copysignf (a[i], b[i]);
>
>
> assuming
this patch enable auto-vectorization for copysignf by using vector
bit selection instruction on arm32 when neon available.
for a simple testcase:
for (i = 0; i < N; i++)
r[i] = __builtin_copysignf (a[i], b[i]);
assuming vector factor be 4, the generated instruction sequences is:
