Move float_pow tests to their own file

Author: tgross35

testcrate/tests/float_pow.rs

@@ -0,0 +1,54 @@
+#![allow(unused_macros)]
+#![cfg(not(all(target_arch = "x86", not(target_feature = "sse"))))]
+
+use testcrate::*;
+
+// This is approximate because of issues related to
+// https://github.com/rust-lang/rust/issues/73920.
+// TODO how do we resolve this indeterminacy?
+macro_rules! pow {
+    ($($f:ty, $tolerance:expr, $fn:ident);*;) => {
+        $(
+            #[test]
+            fn $fn() {
+                use compiler_builtins::float::pow::$fn;
+                use compiler_builtins::float::Float;
+                fuzz_float_2(N, |x: $f, y: $f| {
+                    if !(Float::is_subnormal(x) || Float::is_subnormal(y) || x.is_nan()) {
+                        let n = y.to_bits() & !<$f as Float>::SIGNIFICAND_MASK;
+                        let n = (n as <$f as Float>::SignedInt) >> <$f as Float>::SIGNIFICAND_BITS;
+                        let n = n as i32;
+                        let tmp0: $f = x.powi(n);
+                        let tmp1: $f = $fn(x, n);
+                        let (a, b) = if tmp0 < tmp1 {
+                            (tmp0, tmp1)
+                        } else {
+                            (tmp1, tmp0)
+                        };
+
+                        let good = if a == b {
+                            // handles infinity equality
+                            true
+                        } else if a < $tolerance {
+                            b < $tolerance
+                        } else {
+                            let quo = b / a;
+                            (quo < (1. + $tolerance)) && (quo > (1. - $tolerance))
+                        };
+
+                        assert!(
+                            good,
+                            "{}({:?}, {:?}): std: {:?}, builtins: {:?}",
+                            stringify!($fn), x, n, tmp0, tmp1
+                        );
+                    }
+                });
+            }
+        )*
+    };
+}
+
+pow! {
+    f32, 1e-4, __powisf2;
+    f64, 1e-12, __powidf2;
+}

testcrate/tests/misc.rs

@@ -207,59 +207,3 @@ fn bswap() {
         );
     }
 }
-
-// This is approximate because of issues related to
-// https://github.com/rust-lang/rust/issues/73920.
-// TODO how do we resolve this indeterminacy?
-macro_rules! pow {
-    ($($f:ty, $tolerance:expr, $fn:ident);*;) => {
-        $(
-            #[test]
-            fn $fn() {
-                use compiler_builtins::float::pow::$fn;
-                use compiler_builtins::float::Float;
-                fuzz_float_2(N, |x: $f, y: $f| {
-                    if !(Float::is_subnormal(x) || Float::is_subnormal(y) || x.is_nan()) {
-                        let n = y.to_bits() & !<$f as Float>::SIGNIFICAND_MASK;
-                        let n = (n as <$f as Float>::SignedInt) >> <$f as Float>::SIGNIFICAND_BITS;
-                        let n = n as i32;
-                        let tmp0: $f = x.powi(n);
-                        let tmp1: $f = $fn(x, n);
-                        let (a, b) = if tmp0 < tmp1 {
-                            (tmp0, tmp1)
-                        } else {
-                            (tmp1, tmp0)
-                        };
-                        let good = {
-                            if a == b {
-                                // handles infinity equality
-                                true
-                            } else if a < $tolerance {
-                                b < $tolerance
-                            } else {
-                                let quo = b / a;
-                                (quo < (1. + $tolerance)) && (quo > (1. - $tolerance))
-                            }
-                        };
-                        if !good {
-                            panic!(
-                                "{}({}, {}): std: {}, builtins: {}",
-                                stringify!($fn), x, n, tmp0, tmp1
-                            );
-                        }
-                    }
-                });
-            }
-        )*
-    };
-}
-
-#[cfg(not(all(target_arch = "x86", not(target_feature = "sse"))))]
-mod float_pow {
-    use super::*;
-
-    pow! {
-        f32, 1e-4, __powisf2;
-        f64, 1e-12, __powidf2;
-    }
-}