File: simd-5.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 (59 lines) | stat: -rw-r--r-- 843 bytes parent folder | download | duplicates (11) 
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
56
57
58
59
 
/* Test saving and restoring of SIMD registers.  */

typedef short Q __attribute__((vector_size(8)));

Q q1 = {1, 2}, q2 = {3, 4}, q3 = {5, 6}, q4 = {7, 8};

Q w1, w2, w3, w4;
Q z1, z2, z3, z4;

volatile int dummy;

void  __attribute__((__noinline__))
func0 (void)
{
  dummy = 1;
}

void __attribute__((__noinline__))
func1 (void)
{
  Q a, b;
  a = q1 * q2;
  b = q3 * q4;
  w1 = a;
  w2 = b;
  func0 ();
  w3 = a;
  w4 = b;
}

void __attribute__((__noinline__))
func2 (void)
{
  Q a, b;
  a = q1 + q2;
  b = q3 - q4;
  z1 = a;
  z2 = b;
  func1 ();
  z3 = a;
  z4 = b;
}

int
main (void)
{
  func2 ();

  if (memcmp (&w1, &w3, sizeof (Q)) != 0)
    abort ();
  if (memcmp (&w2, &w4, sizeof (Q)) != 0)
    abort ();
  if (memcmp (&z1, &z3, sizeof (Q)) != 0)
    abort ();
  if (memcmp (&z2, &z4, sizeof (Q)) != 0)
    abort ();

  return 0;
}