gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-25.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fno-tree-sra -fdump-tree-fre1" } */
   3
   4 struct X { int i; int j; };
   5 void bar (struct X *);
   6 int foo (struct X *p)
   7 {
   8   struct X x;
   9   p->i = 1;
  10   x = *p;
  11   x.j = 2;
  12   return p->i - x.i;
  13 }
  14
  15 /* We should optimize this to return 0.  */
  16
  17 /* { dg-final { scan-tree-dump "return 0;" "fre1" } } */
  18 /* { dg-final { cleanup-tree-dump "fre1" } } */