Move intrinsics-based float methods out of libcore into libstd

Affected methods are `abs`, `signum`, and `powi`.
CC https://github.com/rust-lang/rust/issues/32110#issuecomment-379503183

3 files changed, 0 insertions, 72 deletions

diff --git a/src/libcore/num/f32.rs b/src/libcore/num/f32.rs
index 0edf63bce12..8d5f6f601da 100644
--- a/src/libcore/num/f32.rs
+++ b/src/libcore/num/f32.rs
@@ -17,7 +17,6 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
-use intrinsics;
 use mem;
 use num::Float;
 #[cfg(not(stage0))] use num::FpCategory;
@@ -189,27 +188,6 @@ impl Float for f32 {
         }
     }
 
-    /// Computes the absolute value of `self`. Returns `Float::nan()` if the
-    /// number is `Float::nan()`.
-    #[inline]
-    fn abs(self) -> f32 {
-        unsafe { intrinsics::fabsf32(self) }
-    }
-
-    /// Returns a number that represents the sign of `self`.
-    ///
-    /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()`
-    /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()`
-    /// - `Float::nan()` if the number is `Float::nan()`
-    #[inline]
-    fn signum(self) -> f32 {
-        if self.is_nan() {
-            NAN
-        } else {
-            unsafe { intrinsics::copysignf32(1.0, self) }
-        }
-    }
-
     /// Returns `true` if and only if `self` has a positive sign, including `+0.0`, `NaN`s with
     /// positive sign bit and positive infinity.
     #[inline]
@@ -232,11 +210,6 @@ impl Float for f32 {
         1.0 / self
     }
 
-    #[inline]
-    fn powi(self, n: i32) -> f32 {
-        unsafe { intrinsics::powif32(self, n) }
-    }
-
     /// Converts to degrees, assuming the number is in radians.
     #[inline]
     fn to_degrees(self) -> f32 {
diff --git a/src/libcore/num/f64.rs b/src/libcore/num/f64.rs
index 38f3d63ea8d..08b869734d4 100644
--- a/src/libcore/num/f64.rs
+++ b/src/libcore/num/f64.rs
@@ -17,7 +17,6 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
-use intrinsics;
 use mem;
 use num::Float;
 #[cfg(not(stage0))] use num::FpCategory;
@@ -189,27 +188,6 @@ impl Float for f64 {
         }
     }
 
-    /// Computes the absolute value of `self`. Returns `Float::nan()` if the
-    /// number is `Float::nan()`.
-    #[inline]
-    fn abs(self) -> f64 {
-        unsafe { intrinsics::fabsf64(self) }
-    }
-
-    /// Returns a number that represents the sign of `self`.
-    ///
-    /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()`
-    /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()`
-    /// - `Float::nan()` if the number is `Float::nan()`
-    #[inline]
-    fn signum(self) -> f64 {
-        if self.is_nan() {
-            NAN
-        } else {
-            unsafe { intrinsics::copysignf64(1.0, self) }
-        }
-    }
-
     /// Returns `true` if and only if `self` has a positive sign, including `+0.0`, `NaN`s with
     /// positive sign bit and positive infinity.
     #[inline]
@@ -230,11 +208,6 @@ impl Float for f64 {
         1.0 / self
     }
 
-    #[inline]
-    fn powi(self, n: i32) -> f64 {
-        unsafe { intrinsics::powif64(self, n) }
-    }
-
     /// Converts to degrees, assuming the number is in radians.
     #[inline]
     fn to_degrees(self) -> f64 {
diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index f2e8caaad14..55fad62d871 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -4125,18 +4125,6 @@ pub trait Float: Sized {
     #[stable(feature = "core", since = "1.6.0")]
     fn classify(self) -> FpCategory;
 
-    /// Computes the absolute value of `self`. Returns `Float::nan()` if the
-    /// number is `Float::nan()`.
-    #[stable(feature = "core", since = "1.6.0")]
-    fn abs(self) -> Self;
-    /// Returns a number that represents the sign of `self`.
-    ///
-    /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()`
-    /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()`
-    /// - `Float::nan()` if the number is `Float::nan()`
-    #[stable(feature = "core", since = "1.6.0")]
-    fn signum(self) -> Self;
-
     /// Returns `true` if `self` is positive, including `+0.0` and
     /// `Float::infinity()`.
     #[stable(feature = "core", since = "1.6.0")]
@@ -4150,12 +4138,6 @@ pub trait Float: Sized {
     #[stable(feature = "core", since = "1.6.0")]
     fn recip(self) -> Self;
 
-    /// Raise a number to an integer power.
-    ///
-    /// Using this function is generally faster than using `powf`
-    #[stable(feature = "core", since = "1.6.0")]
-    fn powi(self, n: i32) -> Self;
-
     /// Convert radians to degrees.
     #[stable(feature = "deg_rad_conversions", since="1.7.0")]
     fn to_degrees(self) -> Self;