File: pr30286.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (38 lines) | stat: -rw-r--r-- 756 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
 
/* PR middle-end/30286 */
/* { dg-do run } */
/* { dg-options "-O2 -ftrapv" } */
/* { dg-require-effective-target trapping } */

extern void abort (void);
struct S { struct S *s; };
struct T { struct S *t[25]; };

void
__attribute__((noinline))
foo (int i, struct T *x, struct S *y)
{
  int j;
  for (j = 14; j > i; j--)
    x->t[j] = y->s;
}

int
main (void)
{
  struct S s;
  struct T t;
  int i;

  s.s = &s;
  __builtin_memset (&t, 0, sizeof (t));
  foo (6, &t, &s);
  for (i = 0; i < 25; i++)
    if (t.t[i] != ((i > 6 && i <= 14) ? &s : (struct S *) 0))
      abort ();
  __builtin_memset (&t, 0, sizeof (t));
  foo (-1, &t, &s);
  for (i = 0; i < 25; i++)
    if (t.t[i] != ((i >= 0 && i <= 14) ? &s : (struct S *) 0))
      abort ();
  return 0;
}