gcc/testsuite/gcc.target/spu/subti3.c

   1 /* { dg-do run } */
   2 /* { dg-options "-std=c99" } */
   3 #include <stdlib.h>
   4 typedef int TItype __attribute__ ((mode (TI)));
   5 typedef int DItype __attribute__ ((mode (DI)));
   6 typedef unsigned int UDItype __attribute__ ((mode (DI)));
   7
   8 struct DIstruct {DItype high, low;};
   9 typedef union
  10 {
  11   struct DIstruct s;
  12   TItype t;
  13 } TIunion;
  14
  15 static
  16 void sub_ddmmss (UDItype *sh, UDItype *sl, UDItype ah, UDItype al, UDItype bh, UDItype bl)
  17 {
  18   UDItype x;
  19   x = al - bl;
  20   *sh = ah - bh - (x > al);
  21   *sl = x;
  22 }
  23
  24 int main(void)
  25 {
  26   TIunion aa, bb, cc;
  27   TItype m = 0x1111111111111110ULL;
  28   TItype n = 0x1111111111111111ULL;
  29   TItype d;
  30
  31   aa.s.high = m;
  32   aa.s.low = m;
  33   bb.s.high = n;
  34   bb.s.low = n;
  35
  36
  37   sub_ddmmss (&cc.s.high, &cc.s.low, aa.s.high, aa.s.low, bb.s.high, bb.s.low);
  38   d = aa.t - bb.t;
  39   if (d != cc.t)
  40    abort();
  41   cc.t = aa.t -d;
  42   if (cc.t != bb.t)
  43    abort();
  44  return 0;
  45 }