gcc/testsuite/gcc.dg/doloop-1.c

   1 /* Make sure both loops are recognized as doloops.
   2    If so, "bdnz" will be generated on ppc; if not,
   3    you will get "ble". */
   4
   5 /* { dg-do compile { target powerpc-*-* } } */
   6 /* { dg-options "-O2" } */
   7 void foo (int count, char* pca, char* pcb) {
   8     int i;
   9     if (count > 10)
  10         for (i = 0; i < count; ++i)
  11             pcb += i;
  12     else
  13         for (i = 0; i < count; ++i)
  14             pca += i;
  15     *pca = *pcb;
  16 }
  17 /* { dg-final { scan-assembler "bdnz" } } */
  18 /* { dg-final { scan-assembler-not "blt" } } */