Viewing file:  vect-sdiv-pow2-1.c (1.6 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include "tree-vect.h"
#define DIV(x,y) ((x)/(y))
#define MOD(x,y) ((x)%(y))
#define TEMPLATE(PO2,OP) \
void __attribute__ ((noipa)) \
f_##PO2##_##OP (int *restrict a, int *restrict b, __INTPTR_TYPE__ n) \
{ \
for (__INTPTR_TYPE__ i = 0; i < n; ++i) \
a[i] = OP (b[i], (1 << PO2)); \
}
#define TEMPLATES(PO2) \
TEMPLATE (PO2,DIV); \
TEMPLATE (PO2,MOD);
TEMPLATES (1);
TEMPLATES (2);
TEMPLATES (3);
TEMPLATES (7);
TEMPLATES (8);
TEMPLATES (10);
TEMPLATES (15);
TEMPLATES (16);
TEMPLATES (20);
typedef void (*func_t) (int *, int *, __INTPTR_TYPE__);
typedef struct {
int po2;
func_t div;
func_t mod;
} fn_t;
const fn_t fns[] = {
#define FN_PAIR(PO2) { PO2, f_##PO2##_DIV, f_##PO2##_MOD }
FN_PAIR (1),
FN_PAIR (2),
FN_PAIR (3),
FN_PAIR (7),
FN_PAIR (8),
FN_PAIR (10),
FN_PAIR (15),
FN_PAIR (16),
FN_PAIR (20),
};
int __attribute__ ((noipa, noinline))
power2 (int x)
{
return 1 << x;
}
#define N 50
int
main (void)
{
int a[N], b[N], c[N];
for (int i = 0; i < (sizeof(fns)/sizeof(fns[0])); i++)
{
int p = power2 (fns[i].po2);
for (int j = 0; j < N; j++)
{
a[j] = ((p << 4) * j) / (N - 1) - (p << 5);
asm volatile ("" ::: "memory");
}
fns[i].div (b, a, N);
fns[i].mod (c, a, N);
for (int j = 0; j < N; j++)
if (a[j] != (b[j] * p + c[j]))
__builtin_abort ();
}
return 0;
}
/* { dg-final { scan-tree-dump {\.DIV_POW2} "vect" { target vect_sdiv_pow2_si } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loop" 18 "vect" { target vect_sdiv_pow2_si } } } */
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