Viewing file:  slp-perm-1.c (2.28 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define M00 100
#define M10 216
#define M20 23
#define M01 1322
#define M11 13
#define M21 27271
#define M02 74
#define M12 191
#define M22 500
#if VECTOR_BITS > 128
#define N (VECTOR_BITS * 3 / 32 + 4)
#else
#define N 16
#endif
void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
{
unsigned int i, a, b, c;
for (i = 0; i < N / 3; i++)
{
a = *pInput++;
b = *pInput++;
c = *pInput++;
*pOutput++ = M00 * a + M01 * b + M02 * c;
*pOutput++ = M10 * a + M11 * b + M12 * c;
*pOutput++ = M20 * a + M21 * b + M22 * c;
}
}
int main (int argc, const char* argv[])
{
unsigned int input[N], output[N], i;
check_vect ();
for (i = 0; i < N; i++)
{
input[i] = i%256;
output[i] = 0;
__asm__ volatile ("");
}
#if N == 16
unsigned int check_results[N] = {1470, 395, 28271, 5958, 1655, 111653, 10446, 2915, 195035, 14934, 4175, 278417, 19422, 5435, 361799, 0};
#else
volatile unsigned int check_results[N] = {};
for (unsigned int i = 0; i < N / 3; i++)
{
unsigned int a = input[i * 3];
unsigned int b = input[i * 3 + 1];
unsigned int c = input[i * 3 + 2];
check_results[i * 3] = M00 * a + M01 * b + M02 * c;
check_results[i * 3 + 1] = M10 * a + M11 * b + M12 * c;
check_results[i * 3 + 2] = M20 * a + M21 * b + M22 * c;
asm volatile ("" ::: "memory");
}
#endif
foo (input, output);
for (i = 0; i < N; i++)
{
if (output[i] != check_results[i])
abort ();
__asm__ volatile ("");
}
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_perm } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { vect_perm3_int && {! vect_load_lanes } } } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" { target vect_load_lanes } } } */
/* { dg-final { scan-tree-dump "Built SLP cancelled: can use load/store-lanes" "vect" { target { vect_perm3_int && vect_load_lanes } } } } */
/* { dg-final { scan-tree-dump "LOAD_LANES" "vect" { target vect_load_lanes } } } */
/* { dg-final { scan-tree-dump "STORE_LANES" "vect" { target vect_load_lanes } } } */
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