gcc/testsuite/gcc.target/i386/udivmod-6.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -m8bit-idiv" } */
   3
   4 extern void abort (void);
   5
   6 void
   7 __attribute__((noinline))
   8 test (unsigned long long x, unsigned long long y,
   9       unsigned long long q, unsigned long long r)
  10 {
  11   if ((x / y) != q || (x % y) != r)
  12     abort ();
  13 }
  14
  15 int
  16 main ()
  17 {
  18   test (7, 6, 1, 1);
  19   test (255, 254, 1, 1);
  20   test (256, 254, 1, 2);
  21   test (256, 256, 1, 0);
  22   test (254, 256, 0, 254);
  23   test (254, 255, 0, 254);
  24   test (254, 1, 254, 0);
  25   test (255, 2, 127, 1);
  26   test (1, 256, 0, 1);
  27   test (0x80000000, 0x7fffffff, 1, 1);
  28   test (0x7fffffff, 0x80000000, 0, 0x7fffffff);
  29   test (0x80000000, 0x80000003, 0, 0x80000000);
  30   test (0xfffffffd, 0xfffffffe, 0, 0xfffffffd);
  31   return 0;
  32 }