>> It seems the auto-vectorizer could not recognize that this loop will
>> roll at most 3 times.
>> And it will generate quite messy code.
>>
>> int a[1024], b[1024];
>> void foo (int n)
>> {
>> int i;
>> for (i = (n/4)*4; i< n; i++)
>> a[i] = a[i] + b[i];
>> }
>>
>> How can we correctly
It seems the auto-vectorizer could not recognize that this loop will roll at
most 3 times.
And it will generate quite messy code.
int a[1024], b[1024];
void foo (int n)
{
int i;
for (i = (n/4)*4; i< n; i++)
a[i] = a[i] + b[i];
}
How can we correctly estimate the number of iteratio
