* bug fix: ROUND and TRUNCATE could, under certain circumstances on
the PPC platform, lead to stack corruption; this has been fixed.
(reported by Rainer Joswig)
+ * bug fix: ASH on an (UNSIGNED-BYTE 32) with a shift of -32 or lower
+ no longer ever returns 1 instead of 0. (thanks to Lars Brinkhoff)
* optimization: restored some effective method precomputation in
CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of
precomputation is now tunable.
* optimization: compiler-internal data structure use has been
reviewed, and changes have been made that should improve the
performance of the compiler by about 20%.
+ * optimization: performance of FILL (and :INITIAL-ELEMENT) on
+ simple-base-strings and simple-bit-vectors is improved.
* microoptimization: the compiler is better able to make use of the
x86 LEA instruction for multiplication by constants.
* bug fix: in some situations compiler did not report usage of
small float arguments.
** (FLOAT X) for X of type DOUBLE-FLOAT now returns X in all
circumstances.
+ ** optimizer for (EXPT X 0) did not work for X not of type FLOAT.
planned incompatible changes in 0.8.x:
* (not done yet, but planned:) When the profiling interface settles