-#include <stdint.h>
-#include <math.h>
+#include "libm.h"
-/* FIXME: move this to arch-specific file */
-int __fpclassifyl(long double __x)
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+
+#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
+int __fpclassifyl(long double x)
+{
+ union ldshape u = { x };
+ int e = u.bits.exp;
+ if (!e)
+ return u.bits.m ? FP_SUBNORMAL : FP_ZERO;
+ if (e == 0x7fff)
+ return u.bits.m & (uint64_t)-1>>1 ? FP_NAN : FP_INFINITE;
+ return u.bits.m & (uint64_t)1<<63 ? FP_NORMAL : FP_NAN;
+}
+#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
+int __fpclassifyl(long double x)
{
- union {
- long double __ld;
- __uint16_t __hw[5];
- int64_t __m;
- } __y = { __x };
- int __ee = __y.__hw[4]&0x7fff;
- if (!__ee) return __y.__m ? FP_SUBNORMAL : FP_ZERO;
- if (__ee==0x7fff) return __y.__m ? FP_NAN : FP_INFINITE;
- return __y.__m < 0 ? FP_NORMAL : FP_NAN;
+ union ldshape u = { x };
+ int e = u.bits.exp;
+ if (!e)
+ return u.bits.mlo | u.bits.mhi ? FP_SUBNORMAL : FP_ZERO;
+ if (e == 0x7fff)
+ return u.bits.mlo | u.bits.mhi ? FP_NAN : FP_INFINITE;
+ return FP_NORMAL;
}
+#endif