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from 6920d5a1a28 Fortran: Fix "str" to scalar descriptor conversion [PR92482] new 82b2e4f8cf5 libstdc++: Implement monadic operations for std::optional ( [...] new c4ecb11e4f7 libstdc++: Fix std::stack deduction guide new 5a8832b1659 libstdc++: Change std::variant union member to empty struct new 93bd0213885 Refactor vect_supportable_dr_alignment

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Summary of changes: gcc/tree-vect-data-refs.c | 113 ++++++++----- gcc/tree-vect-stmts.c | 26 +-- gcc/tree-vectorizer.h | 2 +- libstdc++-v3/include/bits/stl_stack.h | 2 +- libstdc++-v3/include/std/optional | 182 ++++++++++++++++++++- libstdc++-v3/include/std/ranges | 42 +---- libstdc++-v3/include/std/variant | 4 +- libstdc++-v3/include/std/version | 3 + .../testsuite/20_util/optional/monadic/and_then.cc | 120 ++++++++++++++ .../testsuite/20_util/optional/monadic/or_else.cc | 103 ++++++++++++ .../20_util/optional/monadic/or_else_neg.cc | 30 ++++ .../20_util/optional/monadic/transform.cc | 123 ++++++++++++++ .../testsuite/20_util/optional/monadic/version.cc | 10 ++ .../testsuite/23_containers/stack/deduction.cc | 14 ++ 14 files changed, 676 insertions(+), 98 deletions(-) create mode 100644 libstdc++-v3/testsuite/20_util/optional/monadic/and_then.cc create mode 100644 libstdc++-v3/testsuite/20_util/optional/monadic/or_else.cc create mode 100644 libstdc++-v3/testsuite/20_util/optional/monadic/or_else_neg.cc create mode 100644 libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc create mode 100644 libstdc++-v3/testsuite/20_util/optional/monadic/version.cc