update from trunk
PRs analyzer/107396, bootstrap/101834, c++/101118, c++/105221, c++/105452,
optimization/91645,
optimization/109342, tree-optimization/109362

update from trunk
PRs analyzer/109098, bootstrap/84402, bootstrap/109310, c++/105481,
profile/109297,
end/106190,
optimization/109187,
optimization/109237, target/106282, target/109072, target/109082,
optimization/54498, tree-optimization/106912,
optimization/107087, tree-optimization/108129,
optimization/108357, tree-optimization/109154,
optimization/109230, tree-optimization/109238,
optimization/109265, tree-optimization/109274,
optimization/109301, tree-optimization/109327,
optimization/109331

update from trunk
PRs analyzer/109239, c++/105996, c++/108390, c++/108795, c++/109177,
end/109258,
optimization/99739, tree-optimization/107569,
optimization/109176, tree-optimization/109262

update from trunk
PRs analyzer/109094, c++/106890, c++/109159, c++/109164, fortran/85877,
optimization/109170,
optimization/109192, tree-optimization/109215,
optimization/109219

update from trunk
PRs analyzer/105906, analyzer/108045, analyzer/109097, c++/58538,
end/106133,
end/108685, middle-end/109031, modula2/109032, modula2/109089,
optimization/107762, rtl-optimization/109179,
optimization/106896, tree-optimization/109005,
optimization/109046, tree-optimization/109115,
optimization/109123, tree-optimization/109139,
optimization/109141, web/88860

update from trunk
PRs ada/108858, ada/108983, analyzer/102671, analyzer/105755,
end/108995, other/108464, plugins/108634, sanitizer/81649,
optimization/108980,
optimization/109008, tree-optimization/109025

update from trunk
PRs ada/108909, analyzer/107565, analyzer/108830, analyzer/108935,
end/97956, middle-end/106258,
end/107411, middle-end/108545, middle-end/108546,
end/108854, middle-end/109006, modula2/108261, modula2/108944,
optimization/108430,
optimization/108603, tree-optimization/108793,
optimization/108828, tree-optimization/108888,
optimization/108950, tree-optimization/108970,
optimization/108979, tree-optimization/108988,
optimization/109002

update from trunk
PRs analyzer/108664, analyzer/108666, analyzer/108725, analyzer/108806,
optimization/108657, tree-optimization/108783,
optimization/108791, tree-optimization/108816,
optimization/108819, tree-optimization/108821,
optimization/108825, tree-optimization/108855,
optimization/108868

update from trunk
PRs analyzer/108704, analyzer/108733, analyzer/108745, c++/106675,
end/26854,
end/106080, rtl-optimization/108681, sanitizer/108777,
optimization/28614,
optimization/96921, tree-optimization/106722,
optimization/107561, tree-optimization/108316,
optimization/108355, tree-optimization/108520,
optimization/108571, tree-optimization/108684,
optimization/108687, tree-optimization/108688,
optimization/108691, tree-optimization/108692,
optimization/108724, tree-optimization/108782

update from trunk
PRs analyzer/108616, analyzer/108633, analyzer/108661, c++/101071,
end/108435, middle-end/108500, middle-end/108625,
optimization/108086, rtl-optimization/108463,
optimization/108508, rtl-optimization/108596, sanitizer/108106,
optimization/26854, tree-optimization/106433,
optimization/106923, tree-optimization/107570,
optimization/108356, tree-optimization/108359,
optimization/108385, tree-optimization/108574,
optimization/108582, tree-optimization/108601,
optimization/108608, tree-optimization/108639,
optimization/108647, tree-optimization/108655
drop libgfortran dependency on libquadmath for F28+ or RHEL8+, gcc-gfortran
devel though

update from trunk
PRs analyzer/108455, analyzer/108507, analyzer/108524, bootstrap/90543,
end/108086, middle-end/108459,
end/108543, modula2/102343, modula2/108144, modula2/108182,
optimization/96373,
optimization/108306, tree-optimization/108440,
optimization/108447, tree-optimization/108449,
optimization/108457, tree-optimization/108482,
optimization/108498, tree-optimization/108500,
optimization/108522, tree-optimization/108523,
optimization/108540, tree-optimization/108547

update from trunk
PRs c++/105593, fortran/108421, go/108426, ipa/106077, libstdc++/108288,
optimization/94793,
optimization/106523
don't build ppc64le unwinder with -fno-omit-frame-pointer (#2161595)

new package