Viewing file:  bb-slp-pattern-1.c (1.29 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 8
unsigned short X[N];
unsigned short Y[N];
unsigned int result[N];
/* unsigned short->unsigned int widening-mult. */
__attribute__ ((noinline, noclone)) void
foo (void)
{
result[0] = (unsigned int) (X[0] * Y[0]);
result[1] = (unsigned int) (X[1] * Y[1]);
result[2] = (unsigned int) (X[2] * Y[2]);
result[3] = (unsigned int) (X[3] * Y[3]);
result[4] = (unsigned int) (X[4] * Y[4]);
result[5] = (unsigned int) (X[5] * Y[5]);
result[6] = (unsigned int) (X[6] * Y[6]);
result[7] = (unsigned int) (X[7] * Y[7]);
}
int main (void)
{
int i, tmp;
check_vect ();
for (i = 0; i < N; i++)
{
X[i] = i;
Y[i] = 64-i;
}
foo ();
for (i = 0; i < N; i++)
{
__asm__ volatile ("");
tmp = X[i] * Y[i];
if (result[i] != tmp)
abort ();
}
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "slp2" { target { vect_widen_mult_hi_to_si || vect_unpack } } } } */
/* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern: detected" 8 "slp2" { target vect_widen_mult_hi_to_si_pattern } } } */
/* { dg-final { scan-tree-dump-times "pattern recognized" 8 "slp2" { target vect_widen_mult_hi_to_si_pattern } } } */
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