gcc-4.9/gcc/testsuite/gcc.target/i386/math-torture/trunc.c


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/* { dg-do assemble } */

float testlf (float x)
{
  return __builtin_truncf (x);
}
double testl (double x)
{
  return __builtin_trunc (x);
}
long double testll (long double x)
{
  return __builtin_truncl (x);
}