Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/vendor/libm-0.1.4/src/math/fabsf.rs b/vendor/libm-0.1.4/src/math/fabsf.rs
new file mode 100644
index 000000000..5942d983a
--- /dev/null
+++ b/vendor/libm-0.1.4/src/math/fabsf.rs
@@ -0,0 +1,16 @@
+/// 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
+    // `f32.abs` native instruction, so we can leverage this for both code size
+    // and speed.
+    llvm_intrinsically_optimized! {
+        #[cfg(target_arch = "wasm32")] {
+            return unsafe { ::core::intrinsics::fabsf32(x) }
+        }
+    }
+    f32::from_bits(x.to_bits() & 0x7fffffff)
+}