[thirdparty/gcc.git] / gcc / testsuite / gcc.dg / torture / pr39074-2.c

/* { dg-do run } */
/* { dg-require-effective-target stdint_types } */
/* { dg-options "-fdump-tree-alias" } */
/* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */

#include <stdint.h>

int i;
uintptr_t __attribute__((noinline,const)) bar(int ***p) { return (uintptr_t)p; }
void __attribute__((noinline))
foo(void)
{
  int *y;
  int **a = &y, **x;
  int ***p;
  uintptr_t b;
  b = bar(&a);
  p = (int ***)b;
  x = *p;
  *x = &i; /* *ANYTHING = &i has to make sure that y points to i.  */
  *y = 0;
}
extern void abort (void);
int main()
{
  i = 1;
  foo ();
  if (i != 0)
    abort ();
  return 0;
}

/* { dg-final { scan-tree-dump "y.._., points-to vars: { i }" "alias" } } */
/* { dg-final { cleanup-tree-dump "alias" } } */
Commit	Line	Data
c5168a9e	1	/* { dg-do run } */
	2	/* { dg-require-effective-target stdint_types } */
	3	/* { dg-options "-fdump-tree-alias" } */
	4	/* { dg-skip-if "" { --* } { "-O0" } { "" } } */
	5
	6	#include <stdint.h>
	7
	8	int i;
	9	uintptr_t __attribute__((noinline,const)) bar(int ***p) { return (uintptr_t)p; }
	10	void __attribute__((noinline))
	11	foo(void)
	12	{
	13	int *y;
	14	int a = &y, x;
	15	int ***p;
	16	uintptr_t b;
	17	b = bar(&a);
	18	p = (int ***)b;
	19	x = *p;
	20	x = &i; / ANYTHING = &i has to make sure that y points to i. /
	21	*y = 0;
	22	}
	23	extern void abort (void);
	24	int main()
	25	{
	26	i = 1;
	27	foo ();
	28	if (i != 0)
	29	abort ();
	30	return 0;
	31	}
	32
dd277d48	33	/* { dg-final { scan-tree-dump "y.._., points-to vars: { i }" "alias" } } */
c5168a9e	34	/* { dg-final { cleanup-tree-dump "alias" } } */