* fixed bug 285: TRUNCATE on bignum arguments, and indeed bignum
arithmetic in general, is now much more reliable on the PPC
platform.
+ * bug fix: LOGCOUNT on (UNSIGNED-BYTE 64) objects on the Alpha
+ platform now returns the right answer.
* 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.
performance of the compiler by about 20%.
* optimization: performance of FILL (and :INITIAL-ELEMENT) on
simple-base-strings and simple-bit-vectors is improved.
+ * optimization: the optimization of 32-bit logical and arithmetic
+ functions introduced in version 0.8.3 on the x86 has been
+ implemented on the mips, ppc and sparc platforms; an
+ implementation of the same facility, but for 64-bit arithmetic,
+ has been added for the alpha.
* 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
generic arithmetic in (SPEED 3) policy.
* bug 145b fix: compiler used wrong type specifier while converting
MEMBER-types to numeric.
+ * bug fix: COMPILE-FILE must bind *READTABLE*. (reported by Doug
+ McNaught)
+ * bug fix: (SETF AREF) on byte-sized-element arrays with constant
+ index argument now works properly on the Alpha platform.
+ * bug fix: floating point exception treatment on the Alpha platform
+ is improved.
+ * bug fix: FILE-POSITION works much better on string input and
+ output streams. (thanks to Nikodemus Siivola)
+ * bug fix: many threading/garbage collection symptoms sorted.
+ SB-THREAD:INTERRUPT-THREAD now safe to call on a thread that
+ might be pseudo-atomic.
+ * internal change: Stopping for GC is now done with signals not
+ ptrace. GC is now done in whichever thread wanted it, instead of
+ in the parent.
+ * bug fix: GC hooks (missing since 0.8) reinstated, so finalizers
+ work again.
+ * bug fix: result form in DO is not contained in the implicit
+ TAGBODY.
+ * incompatible change: ICR structure is changed; the value part of
+ CONTINUATION is now called LVAR; corresponding functions are
+ renamed (e.g. SB-C::CONTINUATION-TYPE has become SB-C::LVAR-TYPE).
+ * added type deriver for ISQRT (thanks to Robert E. Brown).
+ * bug fix: better support for loading from the command line when an
+ initialization file sets (READTABLE-CASE *READTABLE*). (thanks
+ to Adam Warner)
* fixed some bugs revealed by Paul Dietz' test suite:
** the RETURN clause in LOOP is now equivalent to DO (RETURN ...).
** ROUND and FROUND now give the right answer when given very
with negative last argument.
** byte specifiers with zero size and position no longer cause
an error during type derivation.
+ ** bignum multiplication on the Alpha platform now returns the
+ right answer.
+ * porting: The system now builds on SuSE AMD64, although it still
+ generates a 32-bit binary.
+ * .fasl file incompatibility: The fasl file version number has
+ been incremented (because of the changes to internal compiler
+ data structures referred to above).
+
+changes in sbcl-0.8.5 relative to sbcl-0.8.4:
+ * in full calls compiler does not generate checks for declared
+ argument types for all arguments.
+ * fix bug 282: compiler does not trust type assertions while passing
+ arguments to a full call.
+ * fix bug 261: compiler allows NIL or "no value" to be accepted for
+ &OPTIONAL VALUES type parameter.
+ * fix bug 214: algorithm for noting rejected templates is now more
+ similar to that of template seletion. (also reported by rydis on
+ #lisp)
+ * fixed bug 141b: printing backquoted information readably and prettily
+ inserts a space where necessary.
+ * bug fix: obviously wrong type specifiers such as (FIXNUM 1) or
+ (CHARACTER 10) are now reported as errors, rather than propagated
+ as unknown types. (reported by piso on #lisp)
+ * compiler enhancement: SIGNUM is now better able to derive the type
+ of its result.
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** incorrect optimization of TRUNCATE for a positive first
+ argument and negative second.
+ ** compiler failure in let-convertion during flushing dead code.
+ ** compiler failure while deriving type of TRUNCATE on an
+ interval, containing 0.
+ ** ASH of a negative bignum by a negative bignum count now returns
+ -1, not 0.
+ ** intersection of CONS types now canonicalizes properly, fixing
+ inconsistencies in SUBTYPEP.
planned incompatible changes in 0.8.x:
* (not done yet, but planned:) When the profiling interface settles
projects / sbcl.git / blobdiff