[libc-commits] [libc] [llvm] [libc][math][c23] Add exp10bf16 math function (PR #193299)

[via libc-commits]

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@@ -0,0 +1,153 @@
+//===-- Implementation header for exp10bf16 ---------------------*- 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_EXP10BF16_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_EXP10BF16_H
+
+#include "src/__support/FPUtil/FEnvImpl.h"
+#include "src/__support/FPUtil/FPBits.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/FPUtil/PolyEval.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/FPUtil/cast.h"
+#include "src/__support/FPUtil/except_value_utils.h"
+#include "src/__support/FPUtil/nearest_integer.h"
+#include "src/__support/macros/optimization.h"
+
+// This is an algorithm for exp10(x) in bfloat16 which is correctly rounded for
+// all rounding modes, based on the implementation of exp10bf16(x)
+// from the RLIBM project at: https://people.cs.rutgers.edu/~sn349/rlibm
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lntue wrote:

You can remove the second part of this comment, RLIBM project does not have exp10bf16 function.

https://github.com/llvm/llvm-project/pull/193299