File: swaps-p8-15.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (51 lines) | stat: -rw-r--r-- 1,863 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
/* { dg-do compile } */
/* { dg-require-effective-target powerpc_p8vector_ok } */
/* { dg-options "-mdejagnu-cpu=power8 -O3" } */
/* { dg-final { scan-assembler "lxvd2x" } } */
/* { dg-final { scan-assembler "stxvd2x" } } */
/* { dg-final { scan-assembler "xxspltw" } } */

/* Currently the analyze_swaps phase cannot optimize this loop because
   of the presence of an UNSPEC_VSX_CVDPSPN.  At such time as this is 
   handled, we need to add a 'scan-assembler-not "xxpermdi"' directive to
   this test.  */
#include <altivec.h>
void abort();

#define N 4096
#define M 10000000
vector float ca[N][4] = {0};
vector float cb[N][4] = {0};
vector float cc[N][4] = {0};

__attribute__((noinline)) void foo ()
{
  int i;
  for (i = 0; i < N; i++) {
    cc[i][0] = vec_mul(vec_splats(cb[i][0][0]), ca[i][0]);
    cc[i][0] = vec_madd(cc[i][0],vec_splats(cb[i][0][1]), ca[i][1]);
    cc[i][0] = vec_madd(cc[i][0],vec_splats(cb[i][0][2]), ca[i][2]);
    cc[i][0] = vec_madd(cc[i][0],vec_splats(cb[i][0][3]), ca[i][3]);

    cc[i][1] = vec_mul(vec_splats(cb[i][1][0]), ca[i][0]);
    cc[i][1] = vec_madd(cc[i][0],vec_splats(cb[i][1][1]), ca[i][1]);
    cc[i][1] = vec_madd(cc[i][0],vec_splats(cb[i][1][2]), ca[i][2]);
    cc[i][1] = vec_madd(cc[i][0],vec_splats(cb[i][1][3]), ca[i][3]);
    
    cc[i][2] = vec_mul(vec_splats(cb[i][2][0]), ca[i][0]);
    cc[i][2] = vec_madd(cc[i][0],vec_splats(cb[i][2][1]), ca[i][1]);
    cc[i][2] = vec_madd(cc[i][0],vec_splats(cb[i][2][2]), ca[i][2]);
    cc[i][2] = vec_madd(cc[i][0],vec_splats(cb[i][2][3]), ca[i][3]);
    
    cc[i][3] = vec_mul(vec_splats(cb[i][3][0]), ca[i][0]);
    cc[i][3] = vec_madd(cc[i][0],vec_splats(cb[i][3][1]), ca[i][1]);
    cc[i][3] = vec_madd(cc[i][0],vec_splats(cb[i][3][2]), ca[i][2]);
    cc[i][3] = vec_madd(cc[i][0],vec_splats(cb[i][3][3]), ca[i][3]);
  }
}

int main ()
{
  foo ();
  return 0;
}