gcc/testsuite/gcc.target/s390/md/setmem_long-1.c

   1 /* Machine description pattern tests.  */
   2
   3 /* { dg-do compile } */
   4 /* { dg-options "-mmvcle -dP -save-temps" } */
   5 /* { dg-do run { target { s390_useable_hw } } } */
   6
   7 /* Skip test if -O0 is present on the command line or -O... is missing:
   8
   9     { dg-skip-if "" { *-*-* } { "-march=z9*" "-O0" } { "" } }
  10     { dg-skip-if "" { *-*-* } { "*" } { "-O*" } }
  11 */
  12
  13 __attribute__ ((noinline))
  14 void test(char *p, char c, int len)
  15 {
  16   __builtin_memset(p, c, len);
  17 }
  18
  19 __attribute__ ((noinline))
  20 void test2(char *p, int c, int len)
  21 {
  22   __builtin_memset(p, (char)c, len);
  23 }
  24
  25 /* Check that the right patterns are used.  */
  26 /* { dg-final { scan-assembler-times {c"?:16:.*{[*]setmem_long_?3?1?z?}} 1 } } */
  27 /* { dg-final { scan-assembler-times {c"?:22:.*{[*]setmem_long_and_?3?1?z?}} 1 } } */
  28
  29 #define LEN 500
  30 char buf[LEN + 2];
  31
  32 void init_buf(void)
  33 {
  34   int i;
  35
  36   buf[0] = 0;
  37   for (i = 1; i <= LEN; i++)
  38     buf[i] = (0x10 + (i & 0x3f));
  39   buf[LEN + 1] = 0x7f;
  40 }
  41
  42 void validate_buf(char val)
  43 {
  44   int i;
  45
  46   if (buf[0] != 0)
  47     __builtin_abort();
  48   for (i = 1; i <= LEN; i++)
  49     if (buf[i] != val)
  50       __builtin_abort();
  51   if (buf[LEN + 1] != 0x7f)
  52     __builtin_abort();
  53 }
  54
  55 int main(void)
  56 {
  57   init_buf();
  58   test(buf + 1, 55, LEN);
  59   validate_buf(55);
  60   init_buf();
  61   test(buf + 1, 66, LEN);
  62   validate_buf(66);
  63 }