gcc/testsuite/gcc.c-torture/compile/20041119-1.c

   1 /* PR rtl-optimization/17825 */
   2 #ifdef __i386__
   3 register unsigned int reg __asm ("esi");
   4 #elif defined __x86_64__
   5 register unsigned int reg __asm ("r14");
   6 #else
   7 unsigned int reg;
   8 #endif
   9
  10 struct S
  11 {
  12   unsigned int h[8];
  13 } *b;
  14 unsigned int c;
  15 void foo (int);
  16
  17 void
  18 bar (void)
  19 {
  20   unsigned int j, k, l, m;
  21
  22   j = (reg & 0xffff) | ((b->h[2] & 0xffff) << 16);
  23   k = c & 0xffff;
  24   if (k == 0)
  25     foo (0);
  26   l = (j / k) & 0xffff;
  27   m = (j % k) & 0xffff;
  28   reg = (reg & 0xffff0000) | l;
  29   b->h[2] = (b->h[2] & 0xffff0000) | m;
  30 }