>>
>> + && TREE_CODE (half_type1) == INTEGER_TYPE)
>> + {
>> + if (int_fits_type_p (oprnd0, half_type1))
>>
>> I believe you need to check that oprnd0 is a INTEGER_CST before calling
>> int_fits_type_p.
>>
>> + {
>> + /* OPRND0 is a constant of HALF_TYPE
On Thu, Jun 16, 2011 at 10:00 AM, Richard Guenther
wrote:
> On Thu, Jun 16, 2011 at 8:54 AM, Ira Rosen wrote:
>> Hi,
>>
>> For
>>
>> unsigned char in[N];
>> int out[N];
>> for (i = 0; i < N; i++)
>> out[i] = in[i] * 300;
>>
>> in[i] is first promoted to int and then multiplied by 300. This
>>
On Thu, Jun 16, 2011 at 8:54 AM, Ira Rosen wrote:
> Hi,
>
> For
>
> unsigned char in[N];
> int out[N];
> for (i = 0; i < N; i++)
> out[i] = in[i] * 300;
>
> in[i] is first promoted to int and then multiplied by 300. This
> over-promotion prevents the vectorizer from using the widen-mult
> patte
Hi,
For
unsigned char in[N];
int out[N];
for (i = 0; i < N; i++)
out[i] = in[i] * 300;
in[i] is first promoted to int and then multiplied by 300. This
over-promotion prevents the vectorizer from using the widen-mult
pattern here.
This patch checks if a constant fits an intermediate type (sh
