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

[via libc-commits]

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@@ -0,0 +1,397 @@
+//===-- Half-precision x^y function ---------------------------------------===//
+//
+// 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 "src/math/powf16.h"
+#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 {
+static inline double exp2_range_reduced(double x) {
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lntue wrote:

nit: change to `LIBC_INLINE static ...`

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