File: shiftopt-1.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 (67 lines) | stat: -rw-r--r-- 803 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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
 
/* Copyright (C) 2002  Free Software Foundation

   Check that constant folding of shift operations is working.

   Roger Sayle, 10th October 2002.  */

extern void abort (void);
extern void link_error (void);

void
utest (unsigned int x)
{
  if (x >> 0 != x)
    link_error ();

  if (x << 0 != x)
    link_error ();

  if (0 << x != 0)
    link_error ();

  if (0 >> x != 0)
    link_error ();

  if (-1 >> x != -1)
    link_error ();

  if (~0 >> x != ~0)
    link_error ();
}

void
stest (int x)
{
  if (x >> 0 != x)
    link_error ();

  if (x << 0 != x)
    link_error ();

  if (0 << x != 0)
    link_error ();

  if (0 >> x != 0)
    link_error ();
}

int
main ()
{
  utest(9);
  utest(0);

  stest(9);
  stest(0);

  return 0;
}

#ifndef __OPTIMIZE__
void
link_error ()
{
  abort ();
}
#endif