gcc/testsuite/gcc.target/powerpc/pr79439-2.c

   1 /* { dg-do compile { target { powerpc*-*-linux* && lp64 } } } */
   2 /* { dg-options "-O2 -fpic -fno-reorder-blocks" } */
   3
   4 /* On the Linux 64-bit ABIs, we should not eliminate NOP in the 'rec' call if
   5    -fpic is used because rec can be interposed at link time (since it has an
   6    alias), and the recursive call should call the interposed function.  The
   7    Linux 32-bit ABIs do not require NOPs after the BL instruction.  */
   8
   9 int f (void);
  10
  11 void
  12 g (void)
  13 {
  14 }
  15
  16 int
  17 rec (int a)
  18 {
  19   int ret = 0;
  20   if (a > 10 && f ())
  21     ret += rec (a - 1);
  22   g ();
  23   return a + ret;
  24 }
  25
  26 int rec_alias (int) __attribute__ ((alias ("rec")));
  27
  28 /* { dg-final { scan-assembler-times {\mbl f\M}   1 } } */
  29 /* { dg-final { scan-assembler-times {\mbl g\M}   1 } } */
  30 /* { dg-final { scan-assembler-times {\mbl rec\M} 1 } } */
  31 /* { dg-final { scan-assembler-times {\mnop\M}    3 } } */