Viewing file:  slp-perm-9.c (2.05 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#if VECTOR_BITS > 512
#define N (VECTOR_BITS * 6 / 16)
#else
#define N 200
#endif
void __attribute__((noinline))
foo (unsigned short *__restrict__ pInput, unsigned short *__restrict__ pOutput)
{
unsigned short i, a, b, c;
for (i = 0; i < N / 3; i++)
{
a = *pInput++;
b = *pInput++;
c = *pInput++;
*pOutput++ = a + b + c + 3;
*pOutput++ = a + b + c + 12;
*pOutput++ = a + b + c + 1;
}
}
int main (int argc, const char* argv[])
{
unsigned short input[N], output[N], i;
unsigned short check_results[N];
check_vect ();
for (i = 0; i < N; i++)
{
input[i] = i;
output[i] = 0;
asm volatile ("" ::: "memory");
}
for (i = 0; i < N / 3; i++)
{
check_results[3*i] = 9 * i + 6;
check_results[3*i+1] = 9 * i + 15;
check_results[3*i+2] = 9 * i + 4;
__asm__ volatile ("" : : : "memory");
}
foo (input, output);
for (i = 0; i < N - (N % 3); i++)
if (output[i] != check_results[i])
abort ();
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 0 loops" 2 "vect" { target { ! { { vect_perm_short || vect32 } || vect_load_lanes } } } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { { vect_perm_short || vect32 } || vect_load_lanes } } } } */
/* We don't try permutes with a group size of 3 for variable-length
vectors. */
/* { dg-final { scan-tree-dump "permutation requires at least three vectors" "vect" { target { vect_perm_short && { ! vect_perm3_short } } xfail vect_variable_length } } } */
/* { dg-final { scan-tree-dump-not "permutation requires at least three vectors" "vect" { target vect_perm3_short } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" { target { { ! { vect_perm3_short || vect32 } } || vect_load_lanes } } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { { vect_perm3_short || vect32 } && { ! vect_load_lanes } } } } } */
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