Atomic operations on capabilities use library calls

CTSRD-CHERI / clang

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Atomic operations on capabilities use library calls #201

Closed arichardson closed 6 years ago

arichardson commented 6 years ago

Needs to be fixed if we want decent performance. I had a quick look at fixing this but LLVM currently expects xchg/cmpxchg to only operate on integers.

arichardson commented 6 years ago

Fixed for everything except atomic_fetch_add/atomic_fetch_sub