gcc/testsuite/gcc.dg/h8300-div-delay-slot.c

   1 /* Make sure that the H8 backend does not generate a div
   2    instruction in a delay slot. */
   3 /* { dg-options "-Os" } */
   4 /* { dg-skip-if "" { "h8300*-*-*" } "*" "-msx*" }  */
   5 /* { dg-final { scan-assembler-not "\tbra/s\t.*\n\tdiv*" } } */
   6
   7 extern volatile unsigned long timer_ticks;
   8 #define timer_ms_elapsed(ticks) (((unsigned long)(timer_ticks-ticks))/10)
   9 unsigned long ticks;
  10
  11 unsigned tst_read( unsigned char idx )
  12 {
  13         switch( idx )
  14         {
  15                 case 0x62: return timer_ms_elapsed(ticks);
  16                 case 0x61: return timer_ticks;
  17                 default: return 0;
  18         }
  19 }