HLS Lesson13-for循环优化：合并

#include"ap_int.h"
#define DATAW 8
#define CTRLW 1
#define N 4
#define M 2
typedef ap_int<DATAW> data_t;
void for_merge(data_t a[N],data_t b[N],data_t c[N],data_t d[M]);
#include"for_merge.h"
void for_merge(data_t a[N],data_t b[N],data_t c[N],data_t d[M])
{
int i=0;
loop_region:
{
add:
for(i=0;i<N;i++)
{
c[i]=a[i]+b[i];
}
sub:
for(i=0;i<N;i++)
{
d[i]=a[i]+b[i];
}
}
}

#include"for_merge.h"
void for_merge(data_t a[N],data_t b[N],data_t c[N],data_t d[M],ctrl_t K)
{
int i=0;
loop_region:
{
add:
for(i=0;i<N;i++)
{
c[i]=a[i]+b[i];   //N=4 constant
}
sub:
for(i=0;i<K;i++)      //M=variable
{
d[i]=a[i]+b[i];
}
}
}