Enable tests and expose

library/compiler-builtins/libm/src/lib.rs

@@ -343,7 +343,6 @@ pub trait F64Ext: private::Sealed + Sized {
     // NOTE depends on unstable intrinsics::powif64
     // fn powi(self, n: i32) -> Self;
 
-    #[cfg(todo)]
     fn powf(self, n: Self) -> Self;
 
     fn sqrt(self) -> Self;
@@ -463,7 +462,6 @@ impl F64Ext for f64 {
         }
     }
 
-    #[cfg(todo)]
     #[inline]
     fn powf(self, n: Self) -> Self {
         pow(self, n)

library/compiler-builtins/libm/src/math/mod.rs

@@ -50,6 +50,7 @@ mod log2;
 mod log2f;
 mod logf;
 mod powf;
+mod pow;
 mod round;
 mod roundf;
 mod scalbn;
@@ -111,6 +112,7 @@ pub use self::log2::log2;
 pub use self::log2f::log2f;
 pub use self::logf::logf;
 pub use self::powf::powf;
+pub use self::pow::pow;
 pub use self::round::round;
 pub use self::roundf::roundf;
 pub use self::scalbn::scalbn;
@@ -167,7 +169,6 @@ fn get_low_word(x: f64) -> u32 {
     x.to_bits() as u32
 }
 
-#[allow(dead_code)]
 #[inline]
 fn with_set_high_word(f: f64, hi: u32) -> f64 {
     let mut tmp = f.to_bits();

library/compiler-builtins/libm/test-generator/src/main.rs

@@ -774,7 +774,7 @@ f64f64_f64! {
     fdim,
     fmod,
     hypot,
-    // pow,
+    pow,
 }
 
 // With signature `fn(f64, f64, f64) -> f64`