gcc/testsuite/gcc.dg/pr41123.c

   1 /* PR middle-end/41123 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fno-strict-aliasing" } */
   4
   5 struct S { char a, b, c, d, e, f, g, h; };
   6 struct T { int a, b; };
   7
   8 struct S
   9 f1 (float _Complex x)
  10 {
  11   return *(struct S *) & x;
  12 }
  13
  14 int
  15 f2 (float _Complex x)
  16 {
  17   struct S f = f1 (x);
  18   return f.b;
  19 }
  20
  21 struct T
  22 f3 (float _Complex x)
  23 {
  24   return *(struct T *) & x;
  25 }
  26
  27 int
  28 f4 (float _Complex x)
  29 {
  30   struct T f = f3 (x);
  31   return f.a;
  32 }
  33
  34 int
  35 f5 (float _Complex x)
  36 {
  37   struct T f = f3 (x);
  38   return f.b;
  39 }
  40
  41 struct T
  42 f6 (float _Complex x)
  43 {
  44   struct T f = f3 (x);
  45   return f;
  46 }