gcc/testsuite/gcc.target/sh/pr50749-qihisi-predec-4.c

   1 /* PR target/50749: Verify that pre-decrement addressing is generated
   2    inside a loop.  */
   3 /* { dg-do compile }  */
   4 /* { dg-options "-O2" } */
   5 /* { dg-final { scan-assembler-times "mov.b\tr\[0-9]\+,@-r\[0-9]\+" 3 { xfail *-*-*} } } */
   6 /* { dg-final { scan-assembler-times "mov.w\tr\[0-9]\+,@-r\[0-9]\+" 3 { xfail *-*-*} } } */
   7 /* { dg-final { scan-assembler-times "mov.l\tr\[0-9]\+,@-r\[0-9]\+" 3 { xfail *-*-*} } } */
   8
   9 char*
  10 test_func_00 (char* p, int c, int x)
  11 {
  12   do
  13   {
  14     *--p = (char)x;
  15     *--p = (char)x;
  16     *--p = (char)x;
  17   } while (--c);
  18   return p;
  19 }
  20
  21 short*
  22 test_func_01 (short* p, int c, int x)
  23 {
  24   do
  25   {
  26     *--p = (short)x;
  27     *--p = (short)x;
  28     *--p = (short)x;
  29   } while (--c);
  30   return p;
  31 }
  32
  33 int*
  34 test_func_02 (int* p, int c, int x)
  35 {
  36   do
  37   {
  38     *--p = x;
  39     *--p = x;
  40     *--p = x;
  41   } while (--c);
  42   return p;
  43 }