gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-6.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-dse1" } */
   3
   4 int foo11 (int c)
   5 {
   6   __attribute__ ((used))
   7   static int local1, local2;
   8   local1 = 0;
   9   local2 += c;
  10   local1 = 2;
  11   local2++;
  12   return local1 + local2;
  13 }
  14
  15 /* There should only be one assignment to local1 and local2.  */
  16 /* { dg-final { scan-tree-dump-times "local1 = " 1 "dse1"} } */
  17 /* { dg-final { scan-tree-dump-times "local2 = " 1 "dse1"} } */
  18
  19 /* { dg-final { cleanup-tree-dump "dse1" } } */