X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=669b6f4eb90ec8c43b82be27819dfc8d20f3a280;hb=79c8aba8d1af834f7c1db289f33ede663fdbb7eb;hp=863001a03db63eb7bf62092f361640c42620fa99;hpb=b314841f7aa9e9236e8d5097a34f4f28349b408b;p=sbcl.git diff --git a/NEWS b/NEWS index 863001a..669b6f4 100644 --- a/NEWS +++ b/NEWS @@ -2031,8 +2031,8 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3: * 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 returs the right answer. + * 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. @@ -2041,6 +2041,11 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3: 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 @@ -2049,10 +2054,29 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3: 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: (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 @@ -2077,6 +2101,91 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3: 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: + * New code in contrib/sb-introspect (still probably not entirely + stable yet) provides some support for smart Lisp development + environments like SLIME. + * The conditions signalled for errors occurring when loading .fasl + files have been systematized (inheriting from SB-EXT:INVALID-FASL) + in a way which should help ASDF recover gracefully. + * The REQUIRE/PROVIDE behavior of *MODULE-PROVIDER-FUNCTIONS* + stuff has been cleaned up. If you code contrib/ stuff, this might + affect you, and you can look at contrib/README, contrib/STANDARDS, + and/or the 0.8.4.27 diff to check. + * In full calls the compiler now does not generate checks for declared + argument types for all arguments. + * various threading fixes + ** and some experimental patches which didn't make it into + the main tree for this release, but which are shipped in + contrib/experimental-thread.patch as a possible fix for some + failures (deadlock, spinning...) in GC-intensive multithreaded + applications. + * fixed PPC build problem (source code incompatibility of different + library versions): added offsetof() hackery which attempts to divine + where glibc maintainers put uc_mcontext today + * fixed bug 282: compiler does not trust type assertions while passing + arguments to a full call. + * fixed 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) + * bug fix: the :IF-EXISTS argument to OPEN now behaves correctly + with values NIL and :ERROR. (thanks to Milan Zamazal) + * fixed bug 191c: CLOS now does proper keyword argument checking as + described in CLHS 7.6.5 and 7.6.5.1. + * bug fix: LOOP forms using NIL as a for-as-arithmetic counter no + longer raise an error; further, using a list as a for-as-arithmetic + counter now raises a meaningful error. + * fixed bug 213a: even fairly unreasonable CONS type specifiers are + now understood by sequence creation functions such as MAKE-SEQUENCE + and COERCE. + * fixed bug 46k: READ-BYTE now signals an error when asked to read from + a STRING-INPUT-STREAM. + * compiler enhancement: SIGNUM is now better able to derive the type + of its result. + * type declarations inside WITH-SLOTS are checked. (reported by + salex on #lisp) + * 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. + +changes in sbcl-0.8.6 relative to sbcl-0.8.5: + * fixed a bootstrapping bug: the build process no longer assumes + that the various BOOLE-related constants have the same value in + host and target lisps. (noted by Paul Dietz' test suite on an + SBCL binary built from CLISP) + * the system can now be dynamically linked on the MIPS platform, + which enables dynamic loading of foreign code from Lisp. (thanks + to Ralf Baechle for discussions on the MIPS ABI) + * fixed a compiler bug: MV-LET convertion did not check references + to the "max args" entry point. (reported by Brian Downing) + * tweaked disassembly notes to be less confident about proclaiming + some instruction as an LRA. (thanks to Brian Downing) + * fixed some bugs revealed by Paul Dietz' test suite: + ** compiler failure in compiling LOGAND expressions including a + constant 0. + ** implementation of ASH-MOD32 on X86 did not work for the shift + greater than 32. + ** FLUSH-DEST did not mark blocks for type check regeneration. planned incompatible changes in 0.8.x: * (not done yet, but planned:) When the profiling interface settles