gcc/testsuite/gcc.dg/pr42475.c

   1 /* PR rtl-optimization/42475 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 typedef struct { float x, y; } B;
   6 typedef struct { float z; } C;
   7 typedef struct { B b; C c; } D;
   8
   9 B
  10 foo (float x, float y)
  11 {
  12   B b = { .x = x, .y = y };
  13   return b;
  14 }
  15
  16 B
  17 bar (B b, B y)
  18 {
  19   return foo (y.x + b.x, b.y);
  20 }
  21
  22 B
  23 baz (D p)
  24 {
  25   D d = { };
  26   B y = bar (foo (0, (p.c.z) / 2), d.b);
  27   return y;
  28 }