X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=ebf76c73d5e9ff2a3ac6a0992fa28127a92fc448;hb=140791a0479787eaca83bea2355c15b65259a823;hp=94f413c7bd0da7d6f8a09b3c2bd8f8f262af691a;hpb=4b58efcd710097cf7cc9b1a1bed8b0e1bd6eb3b8;p=sbcl.git diff --git a/NEWS b/NEWS index 94f413c..ebf76c7 100644 --- a/NEWS +++ b/NEWS @@ -2002,6 +2002,16 @@ changes in sbcl-0.8.3 relative to sbcl-0.8.2: obscure ANSI requirements changes in sbcl-0.8.4 relative to sbcl-0.8.3: + * incompatible change: The --disable-debugger command line + option now clobbers the debugger at a more fundamental + level, by redefining #'INVOKE-DEBUGGER instead of by + rebinding *DEBUGGER-HOOK*. The main difference is that BREAK + is specified by ANSI to ignore *DEBUGGER-HOOK* and + INVOKE-DEBUGGER regardless. Under the old system, BREAK would + enter the debugger REPL and then suffer recursive errors + because *DEBUG-IO* is also messed up in --disable-debugger mode; + while under the new system, BREAK in --disable-debugger mode + terminates the system just as an unhandled error would. * fixed compiler performance when processing loops with a step >1; * bug fix: DOCUMENTATION now retrieves generic function documentation. Also, DOCUMENTATION and (SETF DOCUMENTATION) @@ -2021,6 +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 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. @@ -2031,11 +2043,40 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3: 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 ppc. + 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 @@ -2045,6 +2086,95 @@ changes in sbcl-0.8.4 relative to sbcl-0.8.3: ** optimizer for (EXPT X 0) did not work for X not of type FLOAT. ** (GCD 0 ) returned . ** LCM should return a non-negative integer. + ** PARSE-INTEGER returned the index of a terminator instead of the + upper bounding index of a substring in case :JUNK-ALLOWED NIL. + ** PARSE-INTEGER returned an incorrect index being applied to a + displaced string. + ** LCM with two arguments of 0 returns 0 rather than signalling + DIVISION-BY-ZERO. + ** unsigned addition of a 32-bit constant with the high bit set no + longer causes an internal compiler error on the x86. + ** LOGBITP accepts a non-negative bignum as its INDEX argument. + ** compiler incorrectly derived types of DPB and DEPOSIT-FIELD + 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: + * 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) + * fixed a compiler bug: MV-LET convertion did not check references + to the "max args" entry point. (reported by Brian Downing) planned incompatible changes in 0.8.x: * (not done yet, but planned:) When the profiling interface settles