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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 16
signed char data_ch[N] =
{ 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 };
#define SUM 210
__attribute__ ((noinline)) int
foo ()
{
int i;
signed short shortsum = 0;
/* widenning sum: sum chars into short.
The widening-summation pattern is currently not detected because of this
patch:
2005-12-26 Kazu Hirata <kazu@codesourcery.com>
PR tree-optimization/25125
*/
for (i = 0; i < N; i++)
{
shortsum += data_ch[i];
}
/* check results: */
if (shortsum != SUM)
abort ();
return 0;
}
int
main (void)
{
check_vect ();
return foo ();
}
/* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_widen_sum_qi_to_hi } } } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
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