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1.0.27.8: slightly faster x86oid pseudo atomic with {e,r}bp
author
Gabor Melis
<mega@hotpop.com>
Mon, 13 Apr 2009 20:00:21 +0000
(20:00 +0000)
committer
Gabor Melis
<mega@hotpop.com>
Mon, 13 Apr 2009 20:00:21 +0000
(20:00 +0000)
Trusting that within SBCL ebp is even and that it doesn't change
within a pseudo atomic section it's possible to use it to set and
clear pseudo atomic bits. It is ever so slightly faster (about 0.5%
overall on cl-bench on a P4).
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