[libc-commits] [libc] [llvm] [libc][math] Refactor ilogbf128 to Header Only (PR #175396)
Muhammad Bassiouni via libc-commits
libc-commits at lists.llvm.org
Sun Jan 11 14:53:12 PST 2026
================
@@ -0,0 +1,34 @@
+//===-- Implementation header for ilogbf128 ----------------------*- 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_ILOGBF128_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_ILOGBF128_H
+
+#include "include/llvm-libc-types/float128.h"
+
+#ifdef LIBC_TYPES_HAS_FLOAT128
+
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+namespace math {
+
+LIBC_INLINE static constexpr int ilogbf128(float128 x) {
+ return fputil::intlogb<int>(x);
+}
+
+} // namespace math
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LIBC_TYPES_HAS_FLOAT128
+
+#endif // LLVM_LIBC_SRC___SUPPORT_MATH_ILOGBF128_H
----------------
bassiounix wrote:
```suggestion
#endif // LLVM_LIBC_SRC___SUPPORT_MATH_ILOGBF128_H
```
https://github.com/llvm/llvm-project/pull/175396
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