Viewing file:  vect-widen-shift-u8.c (1.12 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* { dg-require-effective-target vect_int } */
/* { dg-require-effective-target vect_shift } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 64
#define C1 10
#define C2 5
__attribute__ ((noinline)) void
foo (unsigned char *src, unsigned int *dst1, unsigned int *dst2)
{
int i;
unsigned char b, *s = src;
unsigned int *d1 = dst1, *d2 = dst2;
for (i = 0; i < N; i++)
{
b = *s++;
*d1 = b << C1;
d1++;
*d2 = b << C2;
d2++;
}
s = src;
d1 = dst1;
d2 = dst2;
for (i = 0; i < N; i++)
{
b = *s++;
if (*d1 != b << C1 || *d2 != b << C2)
abort ();
d1++;
d2++;
}
}
int main (void)
{
int i;
unsigned char in[N];
unsigned int out1[N];
unsigned int out2[N];
check_vect ();
for (i = 0; i < N; i++)
{
in[i] = i;
out1[i] = 255;
out2[i] = 255;
__asm__ volatile ("");
}
foo (in, out1, out2);
return 0;
}
/* { dg-final { scan-tree-dump-times "vect_recog_widen_shift_pattern: detected" 2 "vect" { target vect_widen_shift } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
|
