File: vect-double-reduc-2.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (55 lines) | stat: -rw-r--r-- 1,188 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
/* { dg-require-effective-target vect_int_mult } */

#include <stdarg.h>
#include "tree-vect.h"

#define K 32

int in[2*K][K] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
int coeff[K][K] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
int out[K];
int check_result[K] = {357184,339264,321344,303424,285504,267584,249664,231744,213824,195904,177984,160064,142144,124224,106304,88384,70464,52544,34624,16704,-1216,-19136,-37056,-54976,-72896,-90816,-108736,-126656,-144576,-162496,-180416,-198336};

__attribute__ ((noinline)) void 
foo ()
{
  int res = 0, i, j, k;

  for (k = 0; k < K; k++)
    {
      res = 1000000;
      for (j = 0; j < K; j++) 
        for (i = 0; i < K; i++) 
          res -= in[i+k][j] * coeff[i][j];
 
      out[k] = res;
    }
}

int main ()
{
  int i, j, k;

  check_vect ();

  for  (j = 0; j < K; j++)
    {
      for (i = 0; i < 2*K; i++)
        in[i][j] = i+j;

      for (i = 0; i < K; i++)
        coeff[i][j] = i+2;
    }

  foo();

#pragma GCC novector
  for (k = 0; k < K; k++)
    if (out[k] != check_result[k])
      abort ();

  return 0;
}
        
/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */