gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-17.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3
   4 typedef union {
   5   int i;
   6   float f;
   7 } U;
   8
   9 int foo(U *u, int b, int i)
  10 {
  11   u->i = 0;
  12   if (b)
  13     u->i = i;
  14   return u->i;
  15 }
  16
  17 /* { dg-final { scan-tree-dump "Eliminated: 1" "pre" } } */