gcc/testsuite/gcc.dg/tree-ssa/pr45144.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3 /* { dg-require-effective-target int32plus } */
   4
   5 void baz (unsigned);
   6
   7 extern unsigned buf[];
   8
   9 struct A
  10 {
  11   unsigned a1:10;
  12   unsigned a2:3;
  13   unsigned:19;
  14 };
  15
  16 union TMP
  17 {
  18   struct A a;
  19   unsigned int b;
  20 };
  21
  22 static unsigned
  23 foo (struct A *p)
  24 {
  25   union TMP t;
  26   struct A x;
  27
  28   x = *p;
  29   t.a = x;
  30   return t.b;
  31 }
  32
  33 void
  34 bar (unsigned orig, unsigned *new)
  35 {
  36   struct A a;
  37   union TMP s;
  38
  39   s.b = orig;
  40   a = s.a;
  41   if (a.a1)
  42     baz (a.a2);
  43   *new = foo (&a);
  44 }
  45
  46 /* { dg-final { scan-tree-dump-not "unnamed-unsigned:19" "optimized"} } */