File: alloca-4.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 (41 lines) | stat: -rw-r--r-- 709 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
 
/* PR middle-end/37009 */
/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
/* { dg-additional-options "-mincoming-stack-boundary=2 -mpreferred-stack-boundary=2" } */

#include "check.h"

void
bar (char *p, int size)
{
  __builtin_strncpy (p, "good", size);
}

void
__attribute__ ((noinline))
foo (double x, double y ,double z ,double a, int size)
{
  char *p = __builtin_alloca (size + 1);
  double i;

  bar (p, size);
  if (__builtin_strncmp (p, "good", size) != 0)
    {
#ifdef DEBUG
      p[size] = '\0';
      printf ("Failed: %s != good\n", p);
#endif
     abort ();
    }

  check (&i, __alignof__(i));
}

int
main (void)
{
  double x =  1.0 ;
 
  foo (x, x, x, x, 5);

  return 0;
}