1 files changed, 26 insertions, 1 deletions
diff --git a/vendor/libm/src/math/fabsf.rs b/vendor/libm/src/math/fabsf.rs
index 5942d983a..23f3646dc 100644
--- a/vendor/libm/src/math/fabsf.rs
+++ b/vendor/libm/src/math/fabsf.rs
@@ -1,7 +1,6 @@
 /// Absolute value (magnitude) (f32)
 /// Calculates the absolute value (magnitude) of the argument `x`,
 /// by direct manipulation of the bit representation of `x`.
-#[inline]
 #[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
 pub fn fabsf(x: f32) -> f32 {
     // On wasm32 we know that LLVM's intrinsic will compile to an optimized
@@ -14,3 +13,29 @@ pub fn fabsf(x: f32) -> f32 {
     }
     f32::from_bits(x.to_bits() & 0x7fffffff)
 }
+
+// PowerPC tests are failing on LLVM 13: https://github.com/rust-lang/rust/issues/88520
+#[cfg(not(target_arch = "powerpc64"))]
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use core::f32::*;
+
+    #[test]
+    fn sanity_check() {
+        assert_eq!(fabsf(-1.0), 1.0);
+        assert_eq!(fabsf(2.8), 2.8);
+    }
+
+    /// The spec: https://en.cppreference.com/w/cpp/numeric/math/fabs
+    #[test]
+    fn spec_tests() {
+        assert!(fabsf(NAN).is_nan());
+        for f in [0.0, -0.0].iter().copied() {
+            assert_eq!(fabsf(f), 0.0);
+        }
+        for f in [INFINITY, NEG_INFINITY].iter().copied() {
+            assert_eq!(fabsf(f), INFINITY);
+        }
+    }
+}