Viewing file:  slp-reduc-6.c (1.16 KB) -rw-r--r--
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/* Disabling epilogues until we find a better way to deal with scans. */
/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 128
int a[N], b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
/* Vectorization of reduction. Loop-aware SLP is not possible, because of
different arrays. */
__attribute__ ((noinline))
int main1 (int n, int res0, int res1)
{
int i;
int sum0 = 0, sum1 = 0;
for (i = 0; i < n; i++) {
sum1 += a[2*i];
sum0 += b[2*i];
}
/* Check results: */
if (sum0 != res0
|| sum1 != res1)
abort ();
return 0;
}
int main (void)
{
int i;
check_vect ();
for (i = 0; i < N; i++)
a[i] = b[i] = i;
main1 (N/2, 4032, 4032);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { xfail { vect_no_int_add || { ! { vect_unpack || vect_strided2 } } } } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" } } */
/* { dg-final { scan-tree-dump-times "different interleaving chains in one node" 1 "vect" { target { ! vect_no_int_add } } } } */
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