gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-45.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre1" } */
   3
   4 struct S { float a, b; };
   5
   6 float
   7 foo (int x, float y)
   8 {
   9   struct S z[1024];
  10   z[x].a = y;
  11   struct S *p = &z[x];
  12   float *q = (float *) p;
  13   return *q;
  14 }
  15
  16 /* { dg-final { scan-tree-dump "return y_\\d\+\\(D\\);" "fre1" } } */