File: pr64041.c

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gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
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/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-require-effective-target int32plus } */

int printf (const char *, ...);

int a, b = 1, d;

union U1
{
  unsigned int f0;
  int f1;
};

union U2
{
  int f2;
  int f3;
} c;

int
fn1 (int p)
{
  int t = p && a || p && a && p; 
  return t ? t : a;
}

unsigned
fn2 (union U1 p1, union U2 p2)
{
  if (p1.f1 <= 0)
    {
      for (; p2.f2;)
	c.f2 = 0;
      p2.f2 = fn1 (d);
    }
  return p2.f3;
}

int g = 0;

int
foo ()
{
  if (b)
    {
      union U1 f = { 0xFFFFFFFFU }; 

      fn2 (f, c);
    }
  g = 1;
  return 0; 
}


int
main ()
{
  foo ();

  if (g == 0)
    __builtin_abort ();

  return 0;
}