gnu/dist/gcc4/gcc/testsuite/gcc.dg/20050111-1.c

   1 /* PR middle-end/19084, rtl-optimization/19348 */
   2 /* { dg-do compile } */
   3 /* The following ensures that this test is compiled with -O2, unless
   4    on i?86 or x86_64 with -m32 option.  */
   5 /* { dg-options "-O2" } */
   6 /* { dg-options "-O2 -march=i686" { target i?86-*-* x86_64-*-* } } */
   7 /* { dg-options "-O2" { target lp64 } } */
   8
   9 unsigned int
  10 foo (unsigned long long x)
  11 {
  12   unsigned int u;
  13
  14   if (x == 0)
  15     return 0;
  16   u = (unsigned int) (x >> 32);
  17   return u;
  18 }
  19
  20 unsigned long long
  21 bar (unsigned short x)
  22 {
  23   return (unsigned long long) x << 32;
  24 }