gcc/testsuite/gcc.dg/ipa/pr45644.c

   1 /* Verify that we do not IPA-SRA bitfields.  */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2"  } */
   4 /* { dg-require-effective-target int32plus } */
   5
   6 extern void abort (void);
   7
   8 struct S
   9 {
  10   int j : 8;
  11   int i : 24;
  12   int l;
  13 };
  14
  15 static int __attribute__((noinline)) foo (struct S *s)
  16 {
  17   int z = s->i;
  18   if (z != 777)
  19     abort ();
  20   return 0;
  21 }
  22
  23 int __attribute__((noinline)) bar (struct S *s)
  24 {
  25   return foo (s);
  26 }
  27
  28 int main (int argc, char *argv[])
  29 {
  30   struct S s;
  31   s.j = 5;
  32   s.i = 777;
  33   s.l = -1;
  34
  35   return bar (&s);
  36 }