gcc/testsuite/gcc.dg/tree-ssa/pr67891.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre1" } */
   3
   4 unsigned int a, *b;
   5 unsigned short c;
   6 int d;
   7
   8 void
   9 fn1 ()
  10 {
  11   b = &d;
  12   *b = c = a;
  13   *b = d;
  14 }
  15
  16 /* We should remove all loads but that from a.  */
  17 /* { dg-final { scan-tree-dump-not "= \[dbc\];" "fre1" } } */