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/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-slsr-details" } */
#include <stdio.h>
#define W1 22725
#define W2 21407
#define W3 19266
#define W6 8867
void idct_row(short *row, int *dst)
{
int a0, a1, b0, b1;
a0 = W1 * row[0];
a1 = a0;
a0 += W2 * row[2];
a1 += W6 * row[2];
b0 = W1 * row[1];
b1 = W3 * row[1];
dst[0] = a0 + b0;
dst[1] = a0 - b0;
dst[2] = a1 + b1;
dst[3] = a1 - b1;
}
static short block[8] = { 1, 2, 3, 4 };
int main(void)
{
int out[4];
int i;
idct_row(block, out);
for (i = 0; i < 4; i++)
printf("%d\n", out[i]);
return !(out[2] == 87858 && out[3] == 10794);
}
/* For now, disable inserting an initializer when the multiplication will
take place in a smaller type than originally. This test may be deleted
in future when this case is handled more precisely. */
/* { dg-final { scan-tree-dump-times "Inserting initializer" 0 "slsr" { target { ! int16 } } } } */
/* { dg-final { cleanup-tree-dump "slsr" } } */
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