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[Sbcl-commits] CVS: sbcl NEWS, 1.1509, 1.1510 version.lisp-expr, 1.4436, 1.4437
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From: Nikodemus S. <de...@us...> - 2009-05-06 18:35:52
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Update of /cvsroot/sbcl/sbcl In directory fdv4jf1.ch3.sourceforge.com:/tmp/cvs-serv19123 Modified Files: NEWS version.lisp-expr Log Message: 1.0.28.20: further array typechecking optimization * Eliminate extra lowtag checking from the array element type check: since we know we are dealing with an array, we can use the same fast widetag extraction code that array type dispatching used -- factoring it out into %OTHER-POINTER-WIDETAG. * If we know after checking the dimensions that the array must have a header, and we know that the array is simple, we can deduce that there is exactly one level of indirection. * Similarly, if we know that the array has a header, we can immediately pull out the data vector to check if it too has a header instead of doing an extra test. Index: NEWS =================================================================== RCS file: /cvsroot/sbcl/sbcl/NEWS,v retrieving revision 1.1509 retrieving revision 1.1510 diff -u -d -r1.1509 -r1.1510 --- NEWS 6 May 2009 16:28:03 -0000 1.1509 +++ NEWS 6 May 2009 18:35:41 -0000 1.1510 @@ -1,6 +1,5 @@ ;;;; -*- coding: utf-8; fill-column: 78 -*- - * optimization: compiler now generates faster typechecking code for - array dimensions. + * optimization: compiler now generates faster array typechecking code. * optimization: ARRAY-DIMENSION is now faster for multidimensional and non-simple arrays. * optimization: multidimensional array accesses in the absence of type Index: version.lisp-expr =================================================================== RCS file: /cvsroot/sbcl/sbcl/version.lisp-expr,v retrieving revision 1.4436 retrieving revision 1.4437 diff -u -d -r1.4436 -r1.4437 --- version.lisp-expr 6 May 2009 16:28:03 -0000 1.4436 +++ version.lisp-expr 6 May 2009 18:35:41 -0000 1.4437 @@ -17,4 +17,4 @@ ;;; checkins which aren't released. (And occasionally for internal ;;; versions, especially for internal versions off the main CVS ;;; branch, it gets hairier, e.g. "0.pre7.14.flaky4.13".) -"1.0.28.19" +"1.0.28.20" |