1 files changed, 51 insertions, 0 deletions
diff --git a/library/compiler-builtins/libm/src/math/rint.rs b/library/compiler-builtins/libm/src/math/rint.rs
new file mode 100644
index 00000000000..e1c32c94355
--- /dev/null
+++ b/library/compiler-builtins/libm/src/math/rint.rs
@@ -0,0 +1,51 @@
+use super::support::Round;
+
+/// Round `x` to the nearest integer, breaking ties toward even.
+#[cfg(f16_enabled)]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn rintf16(x: f16) -> f16 {
+    select_implementation! {
+        name: rintf16,
+        use_arch: all(target_arch = "aarch64", target_feature = "fp16"),
+        args: x,
+    }
+
+    super::generic::rint_round(x, Round::Nearest).val
+}
+
+/// Round `x` to the nearest integer, breaking ties toward even.
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn rintf(x: f32) -> f32 {
+    select_implementation! {
+        name: rintf,
+        use_arch: any(
+            all(target_arch = "aarch64", target_feature = "neon"),
+            all(target_arch = "wasm32", intrinsics_enabled),
+        ),
+        args: x,
+    }
+
+    super::generic::rint_round(x, Round::Nearest).val
+}
+
+/// Round `x` to the nearest integer, breaking ties toward even.
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn rint(x: f64) -> f64 {
+    select_implementation! {
+        name: rint,
+        use_arch: any(
+            all(target_arch = "aarch64", target_feature = "neon"),
+            all(target_arch = "wasm32", intrinsics_enabled),
+        ),
+        args: x,
+    }
+
+    super::generic::rint_round(x, Round::Nearest).val
+}
+
+/// Round `x` to the nearest integer, breaking ties toward even.
+#[cfg(f128_enabled)]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn rintf128(x: f128) -> f128 {
+    super::generic::rint_round(x, Round::Nearest).val
+}