gcc/testsuite/gcc.target/i386/udivmod-1.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 int x, unsigned int y, unsigned int q, unsigned int r)
   9 {
  10   if ((x / y) != q || (x % y) != r)
  11     abort ();
  12 }
  13
  14 int
  15 main ()
  16 {
  17   test (7, 6, 1, 1);
  18   test (255, 254, 1, 1);
  19   test (256, 254, 1, 2);
  20   test (256, 256, 1, 0);
  21   test (254, 256, 0, 254);
  22   test (254, 255, 0, 254);
  23   test (254, 1, 254, 0);
  24   test (255, 2, 127, 1);
  25   test (1, 256, 0, 1);
  26   test (0x80000000, 0x7fffffff, 1, 1);
  27   test (0x7fffffff, 0x80000000, 0, 0x7fffffff);
  28   test (0x80000000, 0x80000003, 0, 0x80000000);
  29   test (0xfffffffd, 0xfffffffe, 0, 0xfffffffd);
  30   return 0;
  31 }