[libc-commits] [libc] [llvm] [libc][math] Implement C23 half precision pow function (PR #159906)

[Muhammad Bassiouni via libc-commits]

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@@ -0,0 +1,418 @@
+//===-- Implementation header for powf16 ------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC___SUPPORT_MATH_POWF16_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_POWF16_H
+#include "include/llvm-libc-macros/float16-macros.h"
+
+#ifdef LIBC_TYPES_HAS_FLOAT16
+
+#include "hdr/errno_macros.h"
+#include "hdr/fenv_macros.h"
+#include "src/__support/CPP/bit.h"
+#include "src/__support/FPUtil/FEnvImpl.h"
+#include "src/__support/FPUtil/FPBits.h"
+#include "src/__support/FPUtil/PolyEval.h"
+#include "src/__support/FPUtil/cast.h"
+#include "src/__support/FPUtil/multiply_add.h"
+#include "src/__support/FPUtil/nearest_integer.h"
+#include "src/__support/FPUtil/sqrt.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/optimization.h"
+#include "src/__support/macros/properties/types.h"
+#include "src/__support/math/common_constants.h"
+#include "src/__support/math/exp10f_utils.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+using namespace common_constants_internal;
+
+namespace {
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bassiounix wrote:

anonymous namepsaces are not  good here, just give it a proper name under the `math` namespace, such that all the shared code is under `LIBC_NAMESPACE_DECL::math` namespace.

https://github.com/llvm/llvm-project/pull/159906