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Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c109
1 files changed, 2 insertions, 107 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c b/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c
index 08134ed..dfdefe3 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c
@@ -17,110 +17,5 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-/* This has been coded in assembler because GCC makes such a mess of it
- when it's coded in C. */
-
-#include <math.h>
-#include <math_private.h>
-#include <fenv.h>
-#include <math_ldbl_opt.h>
-#include <float.h>
-#include <ieee754.h>
-
-
-long double
-__nearbyintl (long double x)
-{
- fenv_t env;
- static const long double TWO52 = 4503599627370496.0L;
- union ibm_extended_long_double u;
- u.ld = x;
-
- if (!isfinite (u.d[0].d))
- return x;
- else if (fabs (u.d[0].d) < TWO52)
- {
- double xh = u.d[0].d;
- double high = u.d[0].d;
- feholdexcept (&env);
- if (high > 0.0)
- {
- high += TWO52;
- high -= TWO52;
- if (high == -0.0) high = 0.0;
- }
- else if (high < 0.0)
- {
- high -= TWO52;
- high += TWO52;
- if (high == 0.0) high = -0.0;
- }
- if (u.d[1].d > 0.0 && (xh - high == 0.5))
- high += 1.0;
- else if (u.d[1].d < 0.0 && (-(xh - high) == 0.5))
- high -= 1.0;
- u.d[0].d = high;
- u.d[1].d = 0.0;
- math_force_eval (u.d[0]);
- math_force_eval (u.d[1]);
- fesetenv (&env);
- }
- else if (fabs (u.d[1].d) < TWO52 && u.d[1].d != 0.0)
- {
- double high = u.d[0].d, low = u.d[1].d, tau;
- /* In this case we have to round the low double and handle any
- adjustment to the high double that may be caused by rounding
- (up). This is complicated by the fact that the high double
- may already be rounded and the low double may have the
- opposite sign to compensate. */
- feholdexcept (&env);
- if (u.d[0].d > 0.0)
- {
- if (u.d[1].d > 0.0)
- {
- /* If the high/low doubles are the same sign then simply
- round the low double. */
- }
- else if (u.d[1].d < 0.0)
- {
- /* Else the high double is pre rounded and we need to
- adjust for that. */
-
- tau = __nextafter (u.d[0].d, 0.0);
- tau = (u.d[0].d - tau) * 2.0;
- high -= tau;
- low += tau;
- }
- low += TWO52;
- low -= TWO52;
- }
- else if (u.d[0].d < 0.0)
- {
- if (u.d[1].d < 0.0)
- {
- /* If the high/low doubles are the same sign then simply
- round the low double. */
- }
- else if (u.d[1].d > 0.0)
- {
- /* Else the high double is pre rounded and we need to
- adjust for that. */
- tau = __nextafter (u.d[0].d, 0.0);
- tau = (u.d[0].d - tau) * 2.0;
- high -= tau;
- low += tau;
- }
- low = TWO52 - low;
- low = -(low - TWO52);
- }
- u.d[0].d = high + low;
- u.d[1].d = high - u.d[0].d + low;
- math_force_eval (u.d[0]);
- math_force_eval (u.d[1]);
- fesetenv (&env);
- }
-
- return u.ld;
-}
-
-long_double_symbol (libm, __nearbyintl, nearbyintl);
+#define USE_AS_NEARBYINTL
+#include "s_rintl.c"