Viewing file:  vect-avg-5.c (1.22 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include "tree-vect.h"
#define N 50
#ifndef SIGNEDNESS
#define SIGNEDNESS unsigned
#endif
#ifndef BIAS
#define BIAS 0
#endif
void __attribute__ ((noipa))
f (SIGNEDNESS char *restrict a, SIGNEDNESS char *restrict b,
SIGNEDNESS char *restrict c)
{
for (__INTPTR_TYPE__ i = 0; i < N; ++i)
{
int tmp1 = b[i] + BIAS;
int tmp2 = tmp1 + c[i];
a[i] = tmp2 >> 1;
}
}
#define BASE1 ((SIGNEDNESS int) -1 < 0 ? -126 : 4)
#define BASE2 ((SIGNEDNESS int) -1 < 0 ? -101 : 26)
int
main (void)
{
check_vect ();
SIGNEDNESS char a[N], b[N], c[N];
for (int i = 0; i < N; ++i)
{
b[i] = BASE1 + i * 5;
c[i] = BASE2 + i * 4;
asm volatile ("" ::: "memory");
}
f (a, b, c);
for (int i = 0; i < N; ++i)
if (a[i] != ((BASE1 + BASE2 + i * 9 + BIAS) >> 1))
__builtin_abort ();
return 0;
}
/* { dg-final { scan-tree-dump "vect_recog_average_pattern: detected" "vect" } } */
/* { dg-final { scan-tree-dump {\.AVG_FLOOR} "vect" { target vect_avg_qi } } } */
/* { dg-final { scan-tree-dump-not {vector\([^\n]*short} "vect" { target vect_avg_qi } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_avg_qi } } } */
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