Dave Mitchell writes:
: My thinking behind "if fails on one, avoid on all" was that if it failed
: on at least one, then it may well fail on others that you dont have access
: to - either now or in the future, and thus perhaps isnt as good an optimisation
: as you figured. The other way would to be only enable for those architectures
: that experience a speedup.  

Makes sense.

Larry

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