File: pr56144.c

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gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
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/* PR rtl-optimization/56144 */
/* { dg-do compile } */
/* { dg-options "-O" } */

int a;
union U0 { volatile unsigned f2, f4; };
volatile int b;
static union U0 c;
volatile unsigned d, f;
volatile int e, g, h, i, j, k, l, m, n, o, p;
int
main ()
{
  a = b;
  a += c.f2;
  a += c.f4;
  unsigned q = h;
  a += q;
  q = g;
  a += q;
  a += f;
  q = e;
  a += q;
  a += d;
  a += 2L;
  a += j;
  a += i;
  a += k;
  a += p;
  a += o;
  a += n;
  a += m;
  a += l;
  return 0;
}