On Sun, Apr 3, 2011 at 8:51 PM, Matthew Mondor <mm_li...@pulsar-zone.net>wrote:
> Yes, I think that I now understand this. It also appears that in some > particular cases AREF access will be inlined at safety=0, which is a > very nice thing too. > AREF is inlined in many cases, including multidimensional access, but the level of inlining may vary. If you have a look at src/cmppolicy.lsp you will find (define-policy inline-accessors :off debug 2 :off space 3 "Inline access to object slots, including conses and arrays") (define-policy open-code-aref/aset :alias inline-accessors "Inline access to arrays") This means AREF is always open-coded unless DEBUG >= 2. But open-coding only means that AREF is translated into ROW-MAJOR-AREF and this one is only inlined when safety settings are low and the type of the array is known in advance. Juanjo -- Instituto de Física Fundamental, CSIC c/ Serrano, 113b, Madrid 28006 (Spain) http://juanjose.garciaripoll.googlepages.com
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