Revert "remove canonicalization"

This reverts commit 0416cf4.

Author: tgross35

libm/src/math/generic/fmaximum.rs

@@ -13,13 +13,16 @@ use crate::support::Float;
 
 #[inline]
 pub fn fmaximum<F: Float>(x: F, y: F) -> F {
-    if x.is_nan() {
+    let res = if x.is_nan() {
         x
     } else if y.is_nan() {
         y
     } else if x > y || (y.biteq(F::NEG_ZERO) && x.is_sign_positive()) {
         x
     } else {
         y
-    }
+    };
+
+    // Canonicalize
+    res * F::ONE
 }

libm/src/math/generic/fmaximum_num.rs

@@ -15,13 +15,16 @@ use crate::support::Float;
 
 #[inline]
 pub fn fmaximum_num<F: Float>(x: F, y: F) -> F {
-    if x > y || y.is_nan() {
+    let res = if x > y || y.is_nan() {
         x
     } else if y > x || x.is_nan() {
         y
     } else if x.is_sign_positive() {
         x
     } else {
         y
-    }
+    };
+
+    // Canonicalize
+    res * F::ONE
 }

libm/src/math/generic/fminimum.rs

@@ -13,13 +13,16 @@ use crate::support::Float;
 
 #[inline]
 pub fn fminimum<F: Float>(x: F, y: F) -> F {
-    if x.is_nan() {
+    let res = if x.is_nan() {
         x
     } else if y.is_nan() {
         y
     } else if x < y || (x.biteq(F::NEG_ZERO) && y.is_sign_positive()) {
         x
     } else {
         y
-    }
+    };
+
+    // Canonicalize
+    res * F::ONE
 }

libm/src/math/generic/fminimum_num.rs

@@ -15,13 +15,16 @@ use crate::support::Float;
 
 #[inline]
 pub fn fminimum_num<F: Float>(x: F, y: F) -> F {
-    if x > y || x.is_nan() {
+    let res = if x > y || x.is_nan() {
         y
     } else if y > x || y.is_nan() {
         x
     } else if x.is_sign_positive() {
         y
     } else {
         x
-    }
+    };
+
+    // Canonicalize
+    res * F::ONE
 }