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/* { dg-do compile } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-require-effective-target powerpc_vsx_ok } */
/* { dg-options "-O3 -mcpu=power7" } */
 
/* Cut down example from s_scalbnl that aborted on 32-bit when the fix for
   48053 went in to allow creating DImode 0's in VSX registers.  */
 
typedef union
{
  long double value;
  struct
  {
    unsigned long long msw;
    unsigned long long lsw;
  } parts64;
  struct
  {
    unsigned int w0, w1, w2, w3;
  } parts32;
} ieee854_long_double_shape_type;
 
static const long double twolm54 = 5.55111512312578270212e-17;
 
long double foo (long double x, int n)
{
  long long k, hx, lx;
  ieee854_long_double_shape_type qw_u;
 
  qw_u.value = x;
  hx = qw_u.parts64.msw;
  lx = qw_u.parts64.lsw;
 
  k = ((hx >> 52) & 0x7ff) + n + 54;
 
  qw_u.parts64.msw = ((hx & 0x800fffffffffffffULL) | (k << 52));
  qw_u.parts64.lsw = lx;
  x = qw_u.value;
 
  return x*twolm54;
}