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from a3b99b84609 [aarch64] Fold ldr+dup to ld1rq for little endian targets. new ff6c7617102 xtensa: Remove old broken tweak for leaf function new 559993b8574 libstdc++: Embed a static copy of tzdata.zi new c47dcb95666 libstdc++: Disable unwanted code for --with-libstdcxx-zoneinfo=no

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Summary of changes: gcc/config/xtensa/xtensa-protos.h | 2 +- gcc/config/xtensa/xtensa.cc | 75 +- gcc/config/xtensa/xtensa.h | 51 +- libstdc++-v3/acinclude.m4 | 87 +- libstdc++-v3/config.h.in | 5 +- libstdc++-v3/configure | 121 +- libstdc++-v3/doc/html/manual/configure.html | 21 + libstdc++-v3/doc/xml/manual/configure.xml | 27 + libstdc++-v3/src/c++20/Makefile.am | 13 + libstdc++-v3/src/c++20/Makefile.in | 11 + libstdc++-v3/src/c++20/tzdata.zi | 4207 ++++++++++++++++++++ libstdc++-v3/src/c++20/tzdb.cc | 178 +- libstdc++-v3/testsuite/lib/libstdc++.exp | 7 +- .../testsuite/std/time/tzdb/leap_seconds.cc | 1 + libstdc++-v3/testsuite/std/time/tzdb_list/1.cc | 1 + 15 files changed, 4627 insertions(+), 180 deletions(-) create mode 100644 libstdc++-v3/src/c++20/tzdata.zi