1 files changed, 0 insertions, 81 deletions
diff --git a/src/libcore/num/diy_float.rs b/src/libcore/num/diy_float.rs
deleted file mode 100644
index 0a609417dcf..00000000000
--- a/src/libcore/num/diy_float.rs
+++ /dev/null
@@ -1,81 +0,0 @@
-//! Extended precision "soft float", for internal use only.
-
-// This module is only for dec2flt and flt2dec, and only public because of coretests.
-// It is not intended to ever be stabilized.
-#![doc(hidden)]
-#![unstable(
-    feature = "core_private_diy_float",
-    reason = "internal routines only exposed for testing",
-    issue = "none"
-)]
-
-/// A custom 64-bit floating point type, representing `f * 2^e`.
-#[derive(Copy, Clone, Debug)]
-#[doc(hidden)]
-pub struct Fp {
-    /// The integer mantissa.
-    pub f: u64,
-    /// The exponent in base 2.
-    pub e: i16,
-}
-
-impl Fp {
-    /// Returns a correctly rounded product of itself and `other`.
-    pub fn mul(&self, other: &Fp) -> Fp {
-        const MASK: u64 = 0xffffffff;
-        let a = self.f >> 32;
-        let b = self.f & MASK;
-        let c = other.f >> 32;
-        let d = other.f & MASK;
-        let ac = a * c;
-        let bc = b * c;
-        let ad = a * d;
-        let bd = b * d;
-        let tmp = (bd >> 32) + (ad & MASK) + (bc & MASK) + (1 << 31) /* round */;
-        let f = ac + (ad >> 32) + (bc >> 32) + (tmp >> 32);
-        let e = self.e + other.e + 64;
-        Fp { f, e }
-    }
-
-    /// Normalizes itself so that the resulting mantissa is at least `2^63`.
-    pub fn normalize(&self) -> Fp {
-        let mut f = self.f;
-        let mut e = self.e;
-        if f >> (64 - 32) == 0 {
-            f <<= 32;
-            e -= 32;
-        }
-        if f >> (64 - 16) == 0 {
-            f <<= 16;
-            e -= 16;
-        }
-        if f >> (64 - 8) == 0 {
-            f <<= 8;
-            e -= 8;
-        }
-        if f >> (64 - 4) == 0 {
-            f <<= 4;
-            e -= 4;
-        }
-        if f >> (64 - 2) == 0 {
-            f <<= 2;
-            e -= 2;
-        }
-        if f >> (64 - 1) == 0 {
-            f <<= 1;
-            e -= 1;
-        }
-        debug_assert!(f >= (1 >> 63));
-        Fp { f, e }
-    }
-
-    /// Normalizes itself to have the shared exponent.
-    /// It can only decrease the exponent (and thus increase the mantissa).
-    pub fn normalize_to(&self, e: i16) -> Fp {
-        let edelta = self.e - e;
-        assert!(edelta >= 0);
-        let edelta = edelta as usize;
-        assert_eq!(self.f << edelta >> edelta, self.f);
-        Fp { f: self.f << edelta, e }
-    }
-}