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from 389cd88ce79 libstdc++: Fix deduction guide for std::span (PR93426) new 2744b8b286c [ARC] Make libgcc compatible with ARC's reduced register se [...] new 62a715c706d [ARC] Propagate uncached type attribute to each member of a [...] new 82cd9a96ad0 [ARC] Save mlo/mhi registers when ISR. new f261388f1a9 [ARC] Update ARC600 multiplication cost.

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Summary of changes: gcc/ChangeLog | 50 +++ gcc/config/arc/arc-protos.h | 2 - gcc/config/arc/arc.c | 388 +++++++++++++-------- gcc/config/arc/arc.h | 27 +- gcc/config/arc/arc.md | 103 ++++-- gcc/config/arc/predicates.md | 4 +- gcc/testsuite/ChangeLog | 15 + gcc/testsuite/gcc.target/arc/arc.exp | 9 + gcc/testsuite/gcc.target/arc/interrupt-6.c | 2 +- gcc/testsuite/gcc.target/arc/uncached-1.c | 2 +- gcc/testsuite/gcc.target/arc/uncached-2.c | 2 +- gcc/testsuite/gcc.target/arc/uncached-3.c | 22 ++ gcc/testsuite/gcc.target/arc/uncached-4.c | 42 +++ gcc/testsuite/gcc.target/arc/uncached-5.c | 29 ++ gcc/testsuite/gcc.target/arc/uncached-6.c | 35 ++ gcc/testsuite/gcc.target/arc/uncached-7.c | 11 + gcc/testsuite/gcc.target/arc/uncached-8.c | 33 ++ libgcc/ChangeLog | 10 + libgcc/config/arc/crti.S | 5 + libgcc/config/arc/crtn.S | 5 + libgcc/config/arc/crttls.S | 6 + libgcc/config/arc/fp-hack.h | 5 +- libgcc/config/arc/lib1funcs.S | 27 +- .../config/{cr16/divmodhi3.c => arc/lib2funcs.c} | 115 +++--- libgcc/config/arc/t-arc | 1 + 25 files changed, 678 insertions(+), 272 deletions(-) create mode 100644 gcc/testsuite/gcc.target/arc/uncached-3.c create mode 100644 gcc/testsuite/gcc.target/arc/uncached-4.c create mode 100644 gcc/testsuite/gcc.target/arc/uncached-5.c create mode 100644 gcc/testsuite/gcc.target/arc/uncached-6.c create mode 100644 gcc/testsuite/gcc.target/arc/uncached-7.c create mode 100644 gcc/testsuite/gcc.target/arc/uncached-8.c copy libgcc/config/{cr16/divmodhi3.c => arc/lib2funcs.c} (50%)