[libc-commits] [libc] [llvm] [libc][math] Refactor `bf16fmaf128` to header-only (PR #182009)

[Muhammad Bassiouni via libc-commits]

================
@@ -0,0 +1,33 @@
+//===-- Implementation header for bf16fmaf128 -------------------*- 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_BF16FMAF128_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_BF16FMAF128_H
+
+#include "include/llvm-libc-types/float128.h"
+
+#ifdef LIBC_TYPES_HAS_FLOAT128
+
+#include "src/__support/FPUtil/FMA.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+namespace math {
+
+LIBC_INLINE constexpr bfloat16 bf16fmaf128(float128 x, float128 y, float128 z) {
+  return fputil::fma<bfloat16>(x, y, z);
+}
+
+} // namespace math
+} // namespace LIBC_NAMESPACE_DECL
----------------
bassiounix wrote:

```suggestion
namespace LIBC_NAMESPACE_DECL {
namespace math {

LIBC_INLINE bfloat16 bf16fmaf128(float128 x, float128 y, float128 z) {
  return fputil::fma<bfloat16>(x, y, z);
}

} // namespace math
} // namespace LIBC_NAMESPACE_DECL
```

https://github.com/llvm/llvm-project/pull/182009