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from a9853aa * plugin.c (register_plugin_info): Produce an error message [...] new f02d068 Adapt other atomic operations to ARMv8-M Baseline new 84b72a1 Enable ARMv8-M atomic and synchronization support for ARMv8-M [...]

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Summary of changes: gcc/ChangeLog | 35 ++++++ gcc/config/arm/arm.c | 32 ++++++ gcc/config/arm/arm.h | 10 +- gcc/config/arm/sync.md | 117 ++++++++++++++------- gcc/config/arm/thumb1.md | 20 ++++ gcc/testsuite/ChangeLog | 13 +++ ...re-1.c => atomic-comp-swap-release-acquire-3.c} | 4 +- ...atomic-op-acq_rel-1.c => atomic-op-acq_rel-3.c} | 4 +- ...atomic-op-acquire-1.c => atomic-op-acquire-3.c} | 4 +- .../arm/{atomic-op-char-1.c => atomic-op-char-3.c} | 4 +- ...atomic-op-consume-1.c => atomic-op-consume-3.c} | 4 +- .../arm/{atomic-op-int-2.c => atomic-op-int-3.c} | 4 +- ...atomic-op-relaxed-1.c => atomic-op-relaxed-3.c} | 4 +- ...atomic-op-release-1.c => atomic-op-release-3.c} | 4 +- ...atomic-op-seq_cst-1.c => atomic-op-seq_cst-3.c} | 4 +- .../{atomic-op-short-1.c => atomic-op-short-3.c} | 4 +- 16 files changed, 207 insertions(+), 60 deletions(-) copy gcc/testsuite/gcc.target/arm/{atomic-comp-swap-release-acquire-1.c => atomic- [...] copy gcc/testsuite/gcc.target/arm/{atomic-op-acq_rel-1.c => atomic-op-acq_rel-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-acquire-1.c => atomic-op-acquire-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-char-1.c => atomic-op-char-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-consume-1.c => atomic-op-consume-3.c} (78%) copy gcc/testsuite/gcc.target/arm/{atomic-op-int-2.c => atomic-op-int-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-relaxed-1.c => atomic-op-relaxed-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-release-1.c => atomic-op-release-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-seq_cst-1.c => atomic-op-seq_cst-3.c} (75%) copy gcc/testsuite/gcc.target/arm/{atomic-op-short-1.c => atomic-op-short-3.c} (75%)