Viewing file:  pr98772.c (3.33 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O3 -save-temps" } */
#pragma GCC target "+nosve"
#include <stdint.h>
#include <string.h>
#define DSIZE 16
#define PIXSIZE 64
extern void
wplus (uint16_t *d, uint8_t *restrict pix1, uint8_t *restrict pix2 )
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] + pix2[x];
pix1 += 16;
pix2 += 16;
}
}
extern void __attribute__((optimize (0)))
wplus_no_opt (uint16_t *d, uint8_t *restrict pix1, uint8_t *restrict pix2 )
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] + pix2[x];
pix1 += 16;
pix2 += 16;
}
}
extern void
wminus (uint16_t *d, uint8_t *restrict pix1, uint8_t *restrict pix2 )
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] - pix2[x];
pix1 += 16;
pix2 += 16;
}
}
extern void __attribute__((optimize (0)))
wminus_no_opt (uint16_t *d, uint8_t *restrict pix1, uint8_t *restrict pix2 )
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] - pix2[x];
pix1 += 16;
pix2 += 16;
}
}
extern void
wmult (uint16_t *d, uint8_t *restrict pix1, uint8_t *restrict pix2 )
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] * pix2[x];
pix1 += 16;
pix2 += 16;
}
}
extern void __attribute__((optimize (0)))
wmult_no_opt (uint16_t *d, uint8_t *restrict pix1, uint8_t *restrict pix2 )
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] * pix2[x];
pix1 += 16;
pix2 += 16;
}
}
extern void
wlshift (uint16_t *d, uint8_t *restrict pix1)
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] << 8;
pix1 += 16;
}
}
extern void __attribute__((optimize (0)))
wlshift_no_opt (uint16_t *d, uint8_t *restrict pix1)
{
for (int y = 0; y < 4; y++ )
{
for (int x = 0; x < 4; x++ )
d[x + y*4] = pix1[x] << 8;
pix1 += 16;
}
}
void __attribute__((optimize (0)))
init_arrays (uint16_t *d_a, uint16_t *d_b, uint8_t *pix1, uint8_t *pix2)
{
for (int i = 0; i < DSIZE; i++)
{
d_a[i] = (1074 * i)%17;
d_b[i] = (1074 * i)%17;
}
for (int i = 0; i < PIXSIZE; i++)
{
pix1[i] = (1024 * i)%17;
pix2[i] = (1024 * i)%17;
}
}
/* Don't optimize main so we don't get confused over where the vector
instructions are generated. */
__attribute__((optimize (0)))
int main ()
{
uint16_t d_a[DSIZE];
uint16_t d_b[DSIZE];
uint8_t pix1[PIXSIZE];
uint8_t pix2[PIXSIZE];
init_arrays (d_a, d_b, pix1, pix2);
wplus (d_a, pix1, pix2);
wplus_no_opt (d_b, pix1, pix2);
if (memcmp (d_a,d_b, DSIZE) != 0)
return 1;
init_arrays (d_a, d_b, pix1, pix2);
wminus (d_a, pix1, pix2);
wminus_no_opt (d_b, pix1, pix2);
if (memcmp (d_a,d_b, DSIZE) != 0)
return 2;
init_arrays (d_a, d_b, pix1, pix2);
wmult (d_a, pix1, pix2);
wmult_no_opt (d_b, pix1, pix2);
if (memcmp (d_a,d_b, DSIZE) != 0)
return 3;
init_arrays (d_a, d_b, pix1, pix2);
wlshift (d_a, pix1);
wlshift_no_opt (d_b, pix1);
if (memcmp (d_a,d_b, DSIZE) != 0)
return 4;
}
/* { dg-final { scan-assembler-times "uaddl\\tv" 2 } } */
/* { dg-final { scan-assembler-times "usubl\\tv" 2 } } */
/* { dg-final { scan-assembler-times "umull\\tv" 2 } } */
/* { dg-final { scan-assembler-times "shl\\tv" 2 } } */
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