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Andrey Semashev 46bc34778b Use op instead of fetch_op to implement opaque_op in AArch32 and AArch64. 
The operations returning the result of the operation instead of the original
value require less registers, so are more efficient. The exception is AArch64
LSE extension, which adds dedicated atomic instructions which are presumably
more efficient than ll/sc loops.
2020-06-25 15:35:29 +03:00
..
boost
Use op instead of fetch_op to implement opaque_op in AArch32 and AArch64.
2020-06-25 15:35:29 +03:00