https://github.com/Michael137 updated 
https://github.com/llvm/llvm-project/pull/147709

>From 816d7b09be98a875774242d638f31cf88835b857 Mon Sep 17 00:00:00 2001
From: Michael Buch <[email protected]>
Date: Wed, 9 Jul 2025 13:41:29 +0100
Subject: [PATCH] [lldb][Formatters] Simplify std::list libc++ formatter
 matching regex

---
 .../Language/CPlusPlus/CPlusPlusLanguage.cpp   | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp 
b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
index ae6086ff89d71..dd3b84e47dec3 100644
--- a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
+++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -880,11 +880,7 @@ static void LoadLibCxxFormatters(lldb::TypeCategoryImplSP 
cpp_category_sp) {
   AddCXXSynthetic(
       cpp_category_sp,
       lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator,
-      "libc++ std::list synthetic children",
-      // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>$"
-      // so that it does not clash with: "^std::(__cxx11::)?list<.+>$"
-      "^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|"
-      "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>$",
+      "libc++ std::list synthetic children", "^std::__[[:alnum:]]+::list<.+>$",
       stl_deref_flags, true);
   AddCXXSynthetic(
       cpp_category_sp,
@@ -1006,14 +1002,10 @@ static void 
LoadLibCxxFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
       cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
       "libc++ std::list summary provider",
       "^std::__[[:alnum:]]+::forward_list<.+>$", stl_summary_flags, true);
-  AddCXXSummary(
-      cpp_category_sp, lldb_private::formatters::ContainerSizeSummaryProvider,
-      "libc++ std::list summary provider",
-      // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>$"
-      // so that it does not clash with: "^std::(__cxx11::)?list<.+>$"
-      "^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|"
-      "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>$",
-      stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::ContainerSizeSummaryProvider,
+                "libc++ std::list summary provider",
+                "^std::__[[:alnum:]]+::list<.+>$", stl_summary_flags, true);
   AddCXXSummary(cpp_category_sp,
                 lldb_private::formatters::ContainerSizeSummaryProvider,
                 "libc++ std::map summary provider",

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