From: Jonathan Wakely <jwakely@redhat.com>
Date: Thu, 28 Nov 2024 12:38:22 +0000 (+0000)
Subject: libstdc++: Use std::_Destroy in std::stacktrace
X-Git-Tag: basepoints/gcc-16~3788
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1e2b03e4d66d894c2e42d209502b6957b2dabbf9;p=thirdparty%2Fgcc.git

libstdc++: Use std::_Destroy in std::stacktrace

This benefits from the optimizations in std::_Destroy which avoid doing
any work when using std::allocator.

libstdc++-v3/ChangeLog:

	* include/std/stacktrace (basic_stacktrace::_M_impl::_M_resize):
	Use std::_Destroy to destroy removed elements.
---

diff --git a/libstdc++-v3/include/std/stacktrace b/libstdc++-v3/include/std/stacktrace
index 2c0f6ba10a91..f94a424e4cff 100644
--- a/libstdc++-v3/include/std/stacktrace
+++ b/libstdc++-v3/include/std/stacktrace
@@ -601,8 +601,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	void
 	_M_resize(size_type __n, allocator_type& __alloc) noexcept
 	{
-	  for (size_type __i = __n; __i < _M_size; ++__i)
-	    _AllocTraits::destroy(__alloc, &_M_frames[__i]);
+	  std::_Destroy(_M_frames + __n, _M_frames + _M_size, __alloc);
 	  _M_size = __n;
 	}