[libc-commits] [libc] [libc] Add missing LIBC_INLINE to function defined in .h file (PR #213442)

[Nico Weber via libc-commits]

https://github.com/nico updated https://github.com/llvm/llvm-project/pull/213442

>From 2da92675cb31871073ec684c4224e26b7a13bbd4 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis at chromium.org>
Date: Sat, 1 Aug 2026 08:31:33 -0400
Subject: [PATCH 1/2] [libc] Add missing LIBC_INLINE to function defined in .h
 file

---
 libc/src/__support/math/tan.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libc/src/__support/math/tan.h b/libc/src/__support/math/tan.h
index 7ff6f4f795cfb..87f46acbf7017 100644
--- a/libc/src/__support/math/tan.h
+++ b/libc/src/__support/math/tan.h
@@ -108,8 +108,9 @@ LIBC_INLINE double tan_eval(const DoubleDouble &u, DoubleDouble &result) {
 // Calculation a / b = a * (1/b) for DFloat128.
 // Using the initial approximation of q ~ (1/b), then apply 2 Newton-Raphson
 // iterations, before multiplying by a.
-[[maybe_unused]] DFloat128 newton_raphson_div(const DFloat128 &a, DFloat128 b,
-                                              double q) {
+[[maybe_unused]] LIBC_INLINE DFloat128 newton_raphson_div(const DFloat128 &a,
+                                                          DFloat128 b,
+                                                          double q) {
   DFloat128 q0(q);
   LIBC_BIT_CAST_CONSTEXPR_VAR DFloat128 TWO(2.0);
   b.sign = (b.sign == Sign::POS) ? Sign::NEG : Sign::POS;

>From 8ba4047d0ce5742794e94156c72d6cb7d0df374e Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis at chromium.org>
Date: Sat, 1 Aug 2026 09:24:23 -0400
Subject: [PATCH 2/2] one more

---
 libc/src/__support/math/expm1.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libc/src/__support/math/expm1.h b/libc/src/__support/math/expm1.h
index 3d2aa57b589cb..a357699cbed99 100644
--- a/libc/src/__support/math/expm1.h
+++ b/libc/src/__support/math/expm1.h
@@ -126,13 +126,13 @@ LIBC_INLINE DoubleDouble poly_approx_dd(const DoubleDouble &dx) {
 }
 
 #ifdef DEBUGDEBUG
-std::ostream &operator<<(std::ostream &OS, const DFloat128 &r) {
+LIBC_INLINE std::ostream &operator<<(std::ostream &OS, const DFloat128 &r) {
   OS << (r.sign == Sign::NEG ? "-(" : "(") << r.mantissa.val[0] << " + "
      << r.mantissa.val[1] << " * 2^64) * 2^" << r.exponent << "\n";
   return OS;
 }
 
-std::ostream &operator<<(std::ostream &OS, const DoubleDouble &r) {
+LIBC_INLINE std::ostream &operator<<(std::ostream &OS, const DoubleDouble &r) {
   OS << std::hexfloat << "(" << r.hi << " + " << r.lo << ")"
      << std::defaultfloat << "\n";
   return OS;