1 files changed, 53 insertions, 0 deletions
diff --git a/library/compiler-builtins/libm/src/math/fdim.rs b/library/compiler-builtins/libm/src/math/fdim.rs
new file mode 100644
index 00000000000..082c5478b2a
--- /dev/null
+++ b/library/compiler-builtins/libm/src/math/fdim.rs
@@ -0,0 +1,53 @@
+/// Positive difference (f16)
+///
+/// Determines the positive difference between arguments, returning:
+/// * x - y if x > y, or
+/// * +0    if x <= y, or
+/// * NAN   if either argument is NAN.
+///
+/// A range error may occur.
+#[cfg(f16_enabled)]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn fdimf16(x: f16, y: f16) -> f16 {
+    super::generic::fdim(x, y)
+}
+
+/// Positive difference (f32)
+///
+/// Determines the positive difference between arguments, returning:
+/// * x - y if x > y, or
+/// * +0    if x <= y, or
+/// * NAN   if either argument is NAN.
+///
+/// A range error may occur.
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn fdimf(x: f32, y: f32) -> f32 {
+    super::generic::fdim(x, y)
+}
+
+/// Positive difference (f64)
+///
+/// Determines the positive difference between arguments, returning:
+/// * x - y if x > y, or
+/// * +0    if x <= y, or
+/// * NAN   if either argument is NAN.
+///
+/// A range error may occur.
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn fdim(x: f64, y: f64) -> f64 {
+    super::generic::fdim(x, y)
+}
+
+/// Positive difference (f128)
+///
+/// Determines the positive difference between arguments, returning:
+/// * x - y if x > y, or
+/// * +0    if x <= y, or
+/// * NAN   if either argument is NAN.
+///
+/// A range error may occur.
+#[cfg(f128_enabled)]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn fdimf128(x: f128, y: f128) -> f128 {
+    super::generic::fdim(x, y)
+}