1.0.28.21: further array typechecking optimization

[sbcl.git] / NEWS

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 ;;;; -*- coding: utf-8; fill-column: 78 -*-
+  * 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
+    information regarding array rank are approximately 10% faster due to
+    open coding of ARRAY-RANK.
+  * bug fix: potential miscompilation of array stack allocation on x86 and
+    x86-64. (reported by Time Tossavainen)
+  * bug fix: some forms of AND, OR, and COND resulted in expansions that could
+    result in their subforms being treated as top level forms. (reported by
+    James Knight)
   * bug fix: disable address space randomization Linux/x86-64 as well,
     not just x86-64. (reported by Ken Olum)
   * bug fix: #201; type inference for CONS and ARRAY types could derive