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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 64
int ia[N + 1];
int ib[N + 1];
/* Vectorizable. Dependence distance -1. */
__attribute__((noinline)) void
f1 (void)
{
int i;
for (i = 0; i < N; i++)
{
ia[i + 1] = 1;
ib[i] = ia[i];
}
}
/* Not vectorizable due to data dependence: dependence distance 1. */
__attribute__((noinline)) void
f2 (void)
{
int i;
for (i = 0; i < N; i++)
{
ia[i] = 1;
ib[i] = ia[i + 1];
}
}
/* Not vectorizable due to data dependence: dependence distance 1. */
__attribute__((noinline)) void
f3 (void)
{
int i;
for (i = N - 1; i >= 0; i--)
{
ia[i + 1] = 1;
ib[i] = ia[i];
}
}
/* Vectorizable. Dependence distance -1. */
__attribute__((noinline)) void
f4 (void)
{
int i;
for (i = N - 1; i >= 0; i--)
{
ia[i] = 1;
ib[i] = ia[i + 1];
}
}
/* Vectorizable. Dependence distance -1. */
__attribute__((noinline)) void
f5 (void)
{
int i;
for (i = 0; i < N; i++)
{
ia[i + 1] = 1;
ia[i] = 2;
}
}
/* Not vectorizable due to data dependence: dependence distance 1. */
__attribute__((noinline)) void
f6 (void)
{
int i;
for (i = 0; i < N; i++)
{
ia[i] = 1;
ia[i + 1] = 2;
}
}
/* Not vectorizable due to data dependence: dependence distance 1. */
__attribute__((noinline)) void
f7 (void)
{
int i;
for (i = N - 1; i >= 0; i--)
{
ia[i + 1] = 1;
ia[i] = 2;
}
}
/* Vectorizable. Dependence distance -1. */
__attribute__((noinline)) void
f8 (void)
{
int i;
for (i = N - 1; i >= 0; i--)
{
ia[i] = 1;
ia[i + 1] = 2;
}
}
__attribute__ ((noinline)) int
main1 (void)
{
int i, j;
for (j = 0; j < 8; j++)
{
for (i = 0; i <= N; i++)
{
ia[i] = i + 3;
ib[i] = i + N + 3;
asm ("");
}
switch (j)
{
case 0: f1 (); break;
case 1: f2 (); break;
case 2: f3 (); break;
case 3: f4 (); break;
case 4: f5 (); break;
case 5: f6 (); break;
case 6: f7 (); break;
case 7: f8 (); break;
}
#pragma GCC novector
for (i = 0; i <= N; i++)
{
int ea = i + 3;
int eb = i + N + 3;
switch (j)
{
case 0:
if (i) ea = 1;
if (i == 0) eb = 3;
else if (i != N) eb = 1;
break;
case 1:
if (i != N) ea = 1;
if (i != N) eb = i + 4;
break;
case 2:
if (i) ea = 1;
if (i != N) eb = i + 3;
break;
case 3:
if (i != N) ea = 1;
if (i < N - 1) eb = 1;
else if (i == N - 1) eb = 67;
break;
case 4:
ea = 1 + (i != N);
break;
case 5:
ea = 2 - (i != N);
break;
case 6:
ea = 1 + (i == 0);
break;
case 7:
ea = 2 - (i == 0);
break;
}
if (ia[i] != ea || ib[i] != eb)
abort ();
}
}
return 0;
}
int main ()
{
check_vect ();
return main1 ();
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 4 "vect" {xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
/* { dg-final { scan-tree-dump-times "dependence distance negative" 4 "vect" } } */
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