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/* { dg-do compile } */
/* { dg-require-effective-target vect_float } */
/* { dg-additional-options "-Ofast -funroll-loops" } */
#define NXX 516
#define NYY 516
#define IND(x,y) ((x) + (y)*NXX)
float **In, **Out, **V;
void foo(int I, int J, int K1, int K2, int L1, int L2 )
{
for(int i=0; i < I; i++)
{
float *v = V[i];
for(int j=0; j < J; j++)
{
float *in = In[j];
float *out = Out[j];
for(int l=L1; l<L2; l++)
{
for(int k=K1; k<K2; k++)
{
float sum = 0;
int offset = 0;
for(int m=-2; m<=2; m++)
{
for(int n=-2; n<=2; n++, offset++)
sum += in[IND((k+n), (l+m))] * v[offset];
}
out[IND(k,l)] = sum;
}
}
}
}
}
/* { dg-final { scan-tree-dump "improved number of alias checks from \[0-9\]* to 2" "vect" } } */
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