[libc][math][c23] Implement fmaxf16 and fminf16 function (#94131)

Implements fmaxf16 and fminf16, which are two missing functions listed
here: #93566

3 files changed, 52 insertions, 0 deletions

diff --git a/libc/test/src/math/smoke/CMakeLists.txt b/libc/test/src/math/smoke/CMakeLists.txt
index 09e54349..a331c02 100644
--- a/libc/test/src/math/smoke/CMakeLists.txt
+++ b/libc/test/src/math/smoke/CMakeLists.txt
@@ -1748,6 +1748,19 @@ add_fp_unittest(
 )
 
 add_fp_unittest(
+  fminf16_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    fminf16_test.cpp
+  HDRS
+    FMinTest.h
+  DEPENDS
+    libc.src.math.fminf16
+    libc.src.__support.FPUtil.fp_bits
+)
+
+add_fp_unittest(
   fmaxf_test
   SUITE
     libc-math-smoke-tests
@@ -1800,6 +1813,19 @@ add_fp_unittest(
 )
 
 add_fp_unittest(
+  fmaxf16_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    fmaxf16_test.cpp
+  HDRS
+    FMaxTest.h
+  DEPENDS
+    libc.src.math.fmaxf16
+    libc.src.__support.FPUtil.fp_bits
+)
+
+add_fp_unittest(
   fmaximuml_test
   SUITE
     libc-math-smoke-tests
diff --git a/libc/test/src/math/smoke/fmaxf16_test.cpp b/libc/test/src/math/smoke/fmaxf16_test.cpp
new file mode 100644
index 0000000..79c03b7
--- /dev/null
+++ b/libc/test/src/math/smoke/fmaxf16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for fmaxf16 --------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "FMaxTest.h"
+
+#include "src/math/fmaxf16.h"
+
+LIST_FMAX_TESTS(float16, LIBC_NAMESPACE::fmaxf16)
diff --git a/libc/test/src/math/smoke/fminf16_test.cpp b/libc/test/src/math/smoke/fminf16_test.cpp
new file mode 100644
index 0000000..4379a6e
--- /dev/null
+++ b/libc/test/src/math/smoke/fminf16_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for fminf16 ---------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "FMinTest.h"
+
+#include "src/math/fminf16.h"
+
+LIST_FMIN_TESTS(float16, LIBC_NAMESPACE::fminf16)