gcc/testsuite/gcc.dg/pr63804.c

   1 /* PR rtl-optimization/63804 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -g" } */
   4
   5 struct A { int gen; } e;
   6 int a, d;
   7 long b;
   8 enum B { C };
   9 struct D
  10 {
  11   enum B type : 1;
  12   int nr : 1;
  13   struct { unsigned ud; } dw1;
  14 };
  15 enum B c;
  16
  17 void
  18 fn1 (int p1)
  19 {
  20   b = p1 & a;
  21 }
  22
  23 int fn2 ();
  24 void fn3 ();
  25
  26 void
  27 fn4 (struct D p1, unsigned p2, int p3)
  28 {
  29   struct D f, g, h, j = p1, l, m = l;
  30   struct A i = e;
  31   if (i.gen)
  32     p2 = 0;
  33   j.type = c;
  34   g = j;
  35   p1 = g;
  36   fn3 ();
  37   int k = p2, v = p1.nr, p = v;
  38   m.dw1.ud = k;
  39   f = m;
  40   h = f;
  41   struct D n = h;
  42   fn3 (n);
  43   {
  44     d = fn2 ();
  45     int o = d;
  46     fn1 (o);
  47   }
  48   if (i.gen)
  49     fn3 (p1);
  50   b = p & a;
  51   fn3 (p3);
  52 }