From: François Dumont <fdumont@gcc.gnu.org>
Date: Thu, 25 Apr 2024 16:45:59 +0000 (+0200)
Subject: libstdc++: [_Hashtable] Optimize destructor
X-Git-Tag: basepoints/gcc-16~8387
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6ef888177251653fd89b9f127d707bdad04eecbe;p=thirdparty%2Fgcc.git

libstdc++: [_Hashtable] Optimize destructor

Hashtable destructor do not need to call clear() method that in addition to
destroying all nodes also reset all buckets to nullptr.

libstdc++-v3/ChangeLog:

	* include/bits/hashtable.h (~_Hashtable()): Replace clear call with
	a _M_deallocate_nodes call.
---

diff --git a/libstdc++-v3/include/bits/hashtable.h b/libstdc++-v3/include/bits/hashtable.h
index cd3e1ac297c..6e78cb7d9c0 100644
--- a/libstdc++-v3/include/bits/hashtable.h
+++ b/libstdc++-v3/include/bits/hashtable.h
@@ -1664,7 +1664,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 		    "Cache the hash code or qualify your functors involved"
 		    " in hash code and bucket index computation with noexcept");
 
-      clear();
+      this->_M_deallocate_nodes(_M_begin());
       _M_deallocate_buckets();
     }