gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre1" } */
   3
   4 struct f {
   5   float a;
   6   float b;
   7   float c;
   8   float d;
   9 };
  10
  11 struct f a;
  12
  13 void h(float, float, float, float);
  14
  15 void g(void)
  16 {
  17   float a1 = a.a, b = a.b, c = a.c, d = a.d;
  18   a.a = a1;
  19   a.b = b;
  20   a.c = c;
  21   a.d = d;
  22   h(a1, b, c, d);
  23 }
  24
  25 /* { dg-final { scan-tree-dump-not "a\\\.? = " "fre1" } } */