Ramana Radhakrishnan
abb3c64e76
This keeps coming up repeatedly and the ACLE has finally added __ARM_FEATURE_ATOMICS for the LSE feature in GCC. This is now part of the latest ACLE release (https://developer.arm.com/docs/101028/latest/5-feature-test-macros) I know it's late for GCC-9 but this is a simple macro which need not wait for another year. Ok for trunk and to backport to all release branches ? Tested with a simple build and a smoke test. PR target/86538 * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define __ARM_FEATURE_ATOMICS From-SVN: r270686
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