gcc/testsuite/gcc.c-torture/execute/pr52979-1.c

   1 /* PR middle-end/52979 */
   2
   3 /* { dg-require-effective-target int32plus } */
   4
   5 extern void abort (void);
   6 int c, d, e;
   7
   8 void
   9 foo (void)
  10 {
  11 }
  12
  13 struct __attribute__((packed)) S { int g : 31; int h : 6; };
  14 struct S a = { 1 };
  15 static struct S b = { 1 };
  16
  17 void
  18 bar (void)
  19 {
  20   a.h = 1;
  21   struct S f = { };
  22   b = f;
  23   e = 0;
  24   if (d)
  25     c = a.g;
  26 }
  27
  28 void
  29 baz (void)
  30 {
  31   bar ();
  32   a = b;
  33 }
  34
  35 int
  36 main ()
  37 {
  38   baz ();
  39   if (a.g)
  40     abort ();
  41   return 0;
  42 }