guard the bit test merging code in if-combine (RHEL-11483)

fix for TLSLD references (#2213753)
fix crash in dynamic_cast<>() on null pointer (PR c++/99074, #2211506)
adjust a pattern in s390.md (PR target/87723, #2214847)

s390x: add support for register arguments preserving (#2168205)

fix strlen range with a flexible member array (#2137448)

fix deserialization for std::normal_distribution (#2130392,
initialize std::normal_distribution::_M_saved (PR libstdc++/99536)
reject std::make_shared<T[]> (PR libstdc++/99006)

avoid changing PHIs in GIMPLE split_edge (#2117838)

backport straight-line-speculation mitigation (#2108721)

backport std::regex check for invalid range (#2001788)

require docbook-style-xsl instead of docbook5-style-xsl (#2073888)
backport Default widths with -fdec-format-defaults patch (#2074614)

Fix nop generation in annobin plugin. (#2067150)

Add a plugin-annobin subpackage. (#2067150)

fix typo in the cprop_hardreg patch (#2028609)

apply cprop_hardreg fix for narrow mode != lowpart targets (#2028609)

aarch64: Add -mtune=neoverse-512tvb (#1845932)

backport PCH tweaks (#2030878)

avoid cycling on certain subreg reloads (PR rtl-optimization/96796, #2028798)