File: condarith_restrict_it.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A8-2019-q3-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 571,828 kB
  • sloc: ansic: 2,937,651; cpp: 881,644; ada: 597,189; makefile: 65,528; asm: 56,499; xml: 46,621; exp: 24,747; sh: 19,684; python: 7,256; pascal: 4,370; awk: 3,497; perl: 2,695; yacc: 316; ml: 285; f90: 234; lex: 198; objc: 194; haskell: 119
file content (47 lines) | stat: -rw-r--r-- 564 bytes parent folder | download | duplicates (6) 
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 } */
/* { dg-require-effective-target arm_thumb2_ok } */
/* { dg-options "-mthumb -O2 -mrestrict-it" }  */

__attribute__ ((noinline, noclone)) void
fn2 ()
{
  __builtin_printf ("4");
}

enum
{
  ONE = 1,
  TWO
} a;

int b;

__attribute__ ((noinline, noclone)) int
fn1 ()
{
  int c = b == 0;
  if (a <= ONE)
    if (b == 0)
      fn2 ();
  if (a)
    if (c)
      a = 0;

  return a;
}

int
main (void)
{
  a = ONE;
  b = 1;
  if (fn1 () != ONE)
    __builtin_abort ();

  a = TWO;
  b = 0;
  if (fn1 () != 0)
    __builtin_abort ();

  return 0;
}