gcc/testsuite/gcc.target/sh/pr50749-qihisi-predec-3.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]\+" 1 } } */
   6 /* { dg-final { scan-assembler-times "mov.w\tr\[0-9]\+,@-r\[0-9]\+" 1 } } */
   7 /* { dg-final { scan-assembler-times "mov.l\tr\[0-9]\+,@-r\[0-9]\+" 1 } } */
   8
   9 char*
  10 test_func_00 (char* p, int c, int x)
  11 {
  12   do
  13   {
  14     *--p = (char)x;
  15   } while (--c);
  16   return p;
  17 }
  18
  19 short*
  20 test_func_01 (short* p, int c, int x)
  21 {
  22   do
  23   {
  24     *--p = (short)x;
  25   } while (--c);
  26   return p;
  27 }
  28
  29 int*
  30 test_func_02 (int* p, int c, int x)
  31 {
  32   do
  33   {
  34     *--p = x;
  35   } while (--c);
  36   return p;
  37 }