[libc][math][c23] Do some change for comments again.

Author: harrisonGPU

libc/src/math/generic/CMakeLists.txt

@@ -3956,7 +3956,6 @@ add_entrypoint_object(
     libc.hdr.errno_macros
     libc.hdr.fenv_macros
     libc.src.__support.FPUtil.cast
-    libc.src.__support.FPUtil.except_value_utils
     libc.src.__support.FPUtil.fenv_impl
     libc.src.__support.FPUtil.fp_bits
     libc.src.__support.FPUtil.multiply_add

libc/src/math/generic/acoshf16.cpp

@@ -55,7 +55,7 @@ LLVM_LIBC_FUNCTION(float16, acoshf16, (float16 x)) {
   }
 
   // Domain error for inputs less than 1.0.
-  if (LIBC_UNLIKELY(x_abs < 0x3c00)) {
+  if (LIBC_UNLIKELY(x_abs < 0x3c00U)) {
     fputil::set_errno_if_required(EDOM);
     fputil::raise_except_if_required(FE_INVALID);
     return FPBits::quiet_nan().get_val();
@@ -65,7 +65,7 @@ LLVM_LIBC_FUNCTION(float16, acoshf16, (float16 x)) {
   if (LIBC_UNLIKELY(x_u == 0x3c00U))
     return float16(0.0f);
 
-  float xf32 = static_cast<float>(x);
+  float xf32 = x;
 
   // High precision for inputs very close to 1.0
   // if (LIBC_UNLIKELY(xf32 < 1.25f)) {

libc/test/src/math/acoshf16_test.cpp

@@ -1,4 +1,4 @@
-//===-- Unittests for acoshf16 ----------------------------------------------===//
+//===-- Unittests for acoshf16 --------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
 // See https://llvm.org/LICENSE.txt for license information.

libc/test/src/math/smoke/acoshf16_test.cpp

@@ -38,4 +38,4 @@ TEST_F(LlvmLibcAcoshf16Test, SpecialNumbers) {
 
   EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::acoshf16(float16(0.5f)));
   EXPECT_MATH_ERRNO(EDOM);
-}
+}