gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-10.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3
   4 union loc {  unsigned reg; signed offset; };
   5 void __frame_state_for (volatile char *state_in, int x)
   6 {
   7     union loc fs;
   8     int reg;
   9     for (;;)     {
  10         switch (x)  {
  11             case 0:
  12                 *state_in = fs.reg;
  13             case 1:
  14                 *state_in = fs.offset;
  15         }
  16     }
  17 }
  18
  19 /* { dg-final { scan-tree-dump-not "Insertions:" "pre" } } */
  20 /* { dg-final { cleanup-tree-dump "pre" } } */