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from 618ae596ebc aarch64: Fix UB in the compiler [PR100200] new 42a10bb884c arm: Fix ICEs with compare-and-swap and -march=armv8-m.base [...]

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Summary of changes: gcc/config/arm/arm.c | 26 ++++++++++++++++++++++---- gcc/config/arm/sync.md | 28 ++++++++++++++-------------- gcc/config/arm/thumb1.md | 15 +++++++++++++++ gcc/testsuite/gcc.target/arm/pr99977.c | 6 ++++++ 4 files changed, 57 insertions(+), 18 deletions(-) create mode 100644 gcc/testsuite/gcc.target/arm/pr99977.c