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authorAndrew W. Nosenko <andrew.w.nosenko@gmail.com>2012-04-27 18:39:13 +0300
committerMartin Sustrik <sustrik@250bpm.com>2012-04-29 07:30:48 +0200
commit13abf5c351cd989aafa3dda261282732e8c38a83 (patch)
tree63eda5979b55edfdc5977946333da6c732ae08e1 /README.asciidoc
parent8aafb03dee4520ea62cd0cc0c78a9b958ec5ae18 (diff)
atomic: prever inline asm over GCC builtins for armv7a
As per Patrick Trantham comment http://groups.crossroads.io/r/topic/510xaadGgWVcXFdATnhAuN the GCC __sync_*() builtins are more generic but slower than specialized hand-written assembly for armv7a case. Therefore, the code is reordered for prefer inline assembly for armv7a over GCC builtins. * src/atomic_counter.hpp: (atomic_counter_t::add): (atomic_counter_t::sub): * src/atomic_ptr.hpp: (atomic_ptr_t::xchg): (atomic_ptr_t::cas): Prefer armv7a specific inline asm over GCC __sync_*() builtins.
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