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[libcxx] Rename __libcpp_launder to __launder_function_pointer #209320

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Merged
petrhosek merged 1 commit into from
Jul 14, 2026
+2 −2
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[libcxx] Rename __libcpp_launder to __launder_function_pointer #209320

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4 changes: 2 additions & 2 deletions libcxx/src/include/overridable_function.h
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Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@ namespace {

// This is used to prevent TBAA from optimizing away the function pointer comparison.
template <typename T>
[[nodiscard]] inline _LIBCPP_HIDE_FROM_ABI T* __libcpp_launder(T* __ptr) noexcept {
[[nodiscard]] inline _LIBCPP_HIDE_FROM_ABI T* __launder_function_pointer(T* __ptr) noexcept {
__asm__ volatile("" : "+r"(__ptr));
return __ptr;
}
Expand Down Expand Up @@ -96,7 +96,7 @@ _LIBCPP_HIDE_FROM_ABI inline bool __is_function_overridden() noexcept {
// the _Func symbol. The compiler thinks __impl_ref<...>::__impl_ is defined elsewhere
// at link time and will be an undefined symbol. It doesn't know that the __asm__ tells
// the assembler to define it as a local symbol.
return __libcpp_launder(_Func) != __impl_ref<_Func>::__impl_;
return __launder_function_pointer(_Func) != __impl_ref<_Func>::__impl_;
}

_LIBCPP_END_NAMESPACE_STD
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