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/**
* This version is stamped on May 10, 2016
*
* Contact:
* Louis-Noel Pouchet <pouchet.ohio-state.edu>
* Tomofumi Yuki <tomofumi.yuki.fr>
*
* Web address: http://polybench.sourceforge.net
*/
/* syr2k.c: this file is part of PolyBench/C */
#define plus(i) i = i + ONE
static
void init_array(int n, int m,
int *alpha,
int *beta,
int C[ 30 + 0][30 + 0],
int A[ 30 + 0][20 + 0],
int B[ 30 + 0][20 + 0])
{
int i, j;
int ONE = 1;
*alpha = 3;
*beta = 2;
for (i = 0; i < n; plus(i))
for (j = 0; j < m; plus(j)) {
A[i][j] = (int) ((i*j+ONE)%n) / n;
B[i][j] = (int) ((i*j+ONE+ONE)%m) / m;
}
for (i = 0; i < n; plus(i))
for (j = 0; j < n; plus(j)) {
C[i][j] = (int) ((i*j+4-ONE)%n) / m;
}
}
static
int print_array(int n,
int C[ 30 + 0][30 + 0])
{
int i, j;
int ONE = 1;
int res = 0;
for (i = 0; i < n; plus(i))
for (j = 0; j < n; plus(j)) {
res ^= C[i][j];
}
return res;
}
static
void kernel_syr2k(int n, int m,
int alpha,
int beta,
int C[ 30 + 0][30 + 0],
int A[ 30 + 0][20 + 0],
int B[ 30 + 0][20 + 0])
{
int i, j, k;
int ONE = 1;
#pragma scop
for (i = 0; i < n; plus(i)) {
for (j = 0; j <= i; plus(j))
C[i][j] *= beta;
for (k = 0; k < m; plus(k))
for (j = 0; j <= i; plus(j))
{
C[i][j] += A[j][k]*alpha*B[i][k] + B[j][k]*alpha*A[i][k];
}
}
#pragma endscop
}
int main()
{
int n = 30;
int m = 20;
int alpha;
int beta;
int C[30 + 0][30 + 0];
int A[30 + 0][20 + 0];
int B[30 + 0][20 + 0];
init_array (n, m, &alpha, &beta,
C,
A,
B);
;
kernel_syr2k (n, m,
alpha, beta,
C,
A,
B);
;
;
return print_array(n, C);
}
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