File: pr48702.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 (47 lines) | stat: -rw-r--r-- 657 bytes parent folder | download | duplicates (10) 
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
 
/* { dg-do run } */

extern void abort (void);

#define LEN 4

static inline void unpack(int  array[LEN])
{
  int ii, val;
  val = 1;
  for (ii = 0; ii < LEN; ii++) {
      array[ii] = val % 2;
      val = val / 2;
  }
}

static inline int  pack(int  array[LEN])
{
  int ans, ii;
  ans = 0;
  for (ii = LEN-1; ii >= 0; ii--) {
      ans = 2 * ans + array[ii];
  }
  return ans;
}

int __attribute__((noinline))
foo()
{
  int temp, ans;
  int array[LEN];
  unpack(array);
  temp = array[0];
  array[0] = array[2];
  array[2] = temp;
  ans = pack(array);
  return ans;
}

int main(void)
{
  int val;
  val = foo();
  if (val != 4)
    abort ();
  return 0;
}