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from 2a39c42a42c vect: Enhance condition check to use partial vectors new a9ba2a9b77b aarch64: New Straight Line Speculation (SLS) mitigation flags new be178ecd5ac aarch64: Introduce SLS mitigation for RET and BR instructions new 96b7f495f92 aarch64: Mitigate SLS for BLR instruction new 63b6808e696 aarch64: Add missing ACLE support for BTI new 463ba375f7b aarch64: Fix noexecstack note in libitm new e73ec755489 aarch64: Fix noexecstack note in libgcc new f0f62fa0320 aarch64: Fix BTI support in libgcc [PR96001] new 319078dad62 aarch64: Fix BTI support in libitm new edf95e51e53 ira: Fix unnecessary register spill new ea82325afec openmp: Change omp_atv_default value and rename omp_atv_seq [...]

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Summary of changes: gcc/config/aarch64/aarch64-c.c | 3 + gcc/config/aarch64/aarch64-protos.h | 5 + gcc/config/aarch64/aarch64.c | 346 ++++++++++++++++++++- gcc/config/aarch64/aarch64.h | 25 +- gcc/config/aarch64/aarch64.md | 87 ++++-- gcc/config/aarch64/aarch64.opt | 4 + gcc/config/aarch64/constraints.md | 9 + gcc/config/aarch64/predicates.md | 3 +- gcc/doc/invoke.texi | 12 + gcc/ira.c | 2 + gcc/testsuite/gcc.target/aarch64/nospill.c | 35 +++ .../aarch64/sls-mitigation/sls-miti-blr-bti.c | 40 +++ .../aarch64/sls-mitigation/sls-miti-blr.c | 33 ++ .../aarch64/sls-mitigation/sls-miti-retbr-pacret.c | 21 ++ .../aarch64/sls-mitigation/sls-miti-retbr.c | 119 +++++++ .../aarch64/sls-mitigation/sls-mitigation.exp | 73 +++++ gcc/testsuite/lib/target-supports.exp | 2 +- libgcc/config/aarch64/lse.S | 30 ++ libgomp/allocator.c | 10 +- libgomp/omp.h.in | 8 +- libitm/config/aarch64/sjlj.S | 29 +- 21 files changed, 854 insertions(+), 42 deletions(-) create mode 100644 gcc/testsuite/gcc.target/aarch64/nospill.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-blr-bti.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-blr.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-retbr- [...] create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-miti-retbr.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sls-mitigation/sls-mitigation.exp