X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=4a68deb29ff90893efa6138e2790ac78fe789e4a;hb=c589b9363d23ec9133e5396adaf4240cb0a8bd18;hp=f87872011a7e8cc55e1ad6022228367f2b2da2cc;hpb=8ebb917259ea3332d46e0301907e7494107eb2f5;p=sbcl.git diff --git a/NEWS b/NEWS index f878720..4a68deb 100644 --- a/NEWS +++ b/NEWS @@ -1,12 +1,209 @@ ;;;; -*- coding: utf-8; fill-column: 78 -*- +changes relative to sbcl-1.0.31 + * optimization: faster FIND and POSITION on strings of unknown element type + in high SPEED policies. (thanks to Karol Swietlicki) + * optimization: faster CONCATENATE 'STRING in low SPEED policies (reported + by David Vázquez) + * improvement: better error signalling for bogus parameter specializer names + in DEFMETHOD forms (reported by Pluijzer) + * bug fix: DELETE-FILE once again works on logical pathnames (regression + since 1.0.30.49) + * bug fix: LOGICAL-PATHNAME signals a TYPE-ERROR if pathspec is specified + incorrectly. + * bug fix: redefinition of a class via DEFCLASS without :DEFAULT-INITARGS + removes previous default initargs (reported by Lars Rune Nøstdal and + Samium Gromoff) + * bug fix: correct WHO-CALLS information for inlined lambdas with complex + lambda-lists. (reported by Peter Seibel) + * bug fix: SAVE-LISP-AND-DIE option :SAVE-RUNTIME-OPTIONS did not work + correctly when starting from an executable core without saved runtime + options (reported by Faré Rideau, thanks to Zach Beane) + * bug fix: (SETF SLOT-VALUE) signalled a warning which should have been + an optimization note instead. (reported by Martin Cracauer) + * bug fix: WITH-SLOTS did not work with THE forms. (thanks to David Tolpin) + * bug fix: Have RUN-PROGRAM with :INPUT T only run the subprocess in a + new process group if it doesn't need to share stdin with the sbcl + process. (thanks to Leslie Polzer) + +changes in sbcl-1.0.31 relative to sbcl-1.0.30: + * improvement: stack allocation is should now be possible in all nested + inlining cases: failure to stack allocate when equivalent code is manually + open coded is now considered a bug. + * improvements related to Unicode: + ** the Unicode character database has been upgraded to the + Unicode 5.1 standard, giving names and properties to a number of new + characters, and providing a few extra characters with case + transformations. + ** the system now recognizes and produces names for Unicode Hangul + syllable characters. + ** the EBCDIC-US external-format is now supported for octet operations + (as well as for stream operations). + * new feature: experimental :EMIT-CFASL parameter to COMPILE-FILE can + be used to output toplevel compile-time effects into a separate .CFASL + file. + * optimization: COERCE to VECTOR, STRING, SIMPLE-STRING and recognizable + one-dimenstional subtypes of ARRAY is upto 70% faster when the coercion is + actually needed. + * optimization: TRUNCATE on known single- and double-floats is upto 25% + faster. + * optimization: division of floating point numbers by constants uses + multiplication by reciprocal when an exact reciprocal exists. + * optimization: multiplication of single- and double-floats floats by + constant two has been optimized. + * optimization: ARRAY-IN-BOUNDS-P is resolved at compile-time when + sufficient type information is available. (thanks to Leslie Polzer) + * optimization: SLOT-VALUE and (SETF SLOT-VALUE) with constant slot names on + known structure objects are as efficient as defstruct generated accessors. + * optimization: unused vector creation can now be optimized away. + * improvement: ASDF systems can now depends on SB-INTROSPECT. + * improvement: a STYLE-WARNING is signalled when a generic function + clobbers an earlier FTYPE proclamation. + * improvement: the compiler is able to track the effective type of + generic function across method addition and removal even in the + absence of an explicit DEFGENERIC. + * improvement: DESCRIBE now reports on symbols naming undefined + but assumed or declared function as well. + * improvement: recompilation of systems using SB-GROVEL now works + (thanks to Leslie Polzer) + * improvements to SB-CLTL2 (thanks to Larry D'Anna): + ** functions DECLARATION-INFORMATION, PARSE-MACRO, and ENCLOSE have been + documented. + ** AUGMENT-ENVIRONMENT and DEFINE-DECLARATION have been implemented. + ** DECLARATION-INFORMATION now supports declaration name DECLARATION as + well as user defined declaration names. + ** VARIABLE-INFORMATION is now aware of alien variables. + * improvement: improved address space layout on OpenBSD (thanks to Josh + Elsasser) + * improvement: pretty-printing of various Lisp forms has been improved + (thanks to Tobias Rittweiler) + * bug fix: calls to DECODE-FLOAT and INTEGER-DECODE-FLOAT whose value was + unused were deleted in safe code. (reported by John Fremlin) + * bug fix: a failing AVER compiling certain MAKE-ARRAY forms. (reported + by James Wright) + * bug fix: some out-of-line array predicates were missing (reported by + Stelian Ionescu) + * bug fix: a failing AVER in CONVERT-MV-CALL has been fixed. (thanks to + Larry D'Anna) + * bug fix: a failing AVER in %ALLOCATE-CLOSURES conversion has been fixed + (thanks to Larry D'Anna) + * bug fix: SLEEP supports times over 100 million seconds on long on OpenBSD + as well. (reported by Josh Elsasser) + * bug fix: DELETE-FILE on streams no longer closes the stream with :ABORT T, + leading to possible attempts to delete the same file twice. See docstring + on DELETE-FILE for details. (reported by John Fremlin) + * bug fix: DELETE-FILE once again deletes the file named by the pathname + designator argument, rather than its truename. (reported by Luis + Oliveira) + * bug fix: the low-level debugger had 32-bit assumptions and was missing + information about some array types. (thanks to Luis Oliveira) + * bug fix: moderately complex combinations of inline expansions could + be miscompiled if the result was declared to be dynamic extent. + * bug fix: on x86, SAP-REF of sizes greater than 8 bits with offsets of the + form (+ ) were miscompiled under certain + circumstances. + * bug fix: in some cases no compiler note about failure to stack allocate + was emitted, even if the objects were in fact heap allocated. + * bug fix: minor violation of "otherwise inaccessible" rule for stack + allocation could cause objects users might reasonably expect to + be heap allocated to be stack allocated. + * bug fix: DESCRIBE signalled an error for generic functions under + certain circumstances. (thanks to Leslie Polzer) + * bug fix: Fixed spelling of an error message. + +changes in sbcl-1.0.30 relative to sbcl-1.0.29: + * minor incompatible change: SB-THREAD:JOIN-THREAD-ERROR-THREAD and + SB-THREAD:INTERRUPT-THREAD-ERROR-THREAD have been deprecated in favor + of SB-THREAD:THREAD-ERROR-THREAD. + * new contrib module: SB-QUEUE provides thread-safe lockless FIFO queues. + * new feature: docstrings for local and anonymous functions are no longer + discarded. (thanks to Leslie Polzer) + * new feature: SB-THREAD:SYMBOL-VALUE-IN-THREAD provides access to symbol + values in other threads. + * new feature: SB-INTROSPECT:ALLOCATION-INFORMATION provides information + about object allocation. + * optimization: division of a real float by a complex float is implemented + with a specialised code sequence. + * optimization: MAKE-INSTANCE with non-constant class-argument but constant + keywords is an order of magnitude faster. + * optimization: MAKE-INSTANCE with constant keyword arguments is x2-4 faster + in the presence of :AROUND or non-standard primary INITIALIZE-INSTANCE + methods, and similarly for non-standard metaclass classes as long as there + are no methods additional on MAKE-INSTANCE. + * optimization: more efficient type-checks for FIXNUMs when the value + is known to be a signed word on x86 and x86-64. + * optimization: compiler now optimizes (EXPT -1 INTEGER), (EXPT -1.0 INTEGER), + and (EXPT -1.0d0 INTEGER) into an ODDP test. (thanks to Stas Boukarev and + Paul Khuong) + * optimization: compiler is smarter about delegating argument type checks to + callees. + * optimization: several character functions are now compiled somewhat more + efficiently. (reported by Lynn Quam) + * optimization: the compiler now derives simple types for LOAD-VALUE-FORMs. + * improvement: less unsafe constant folding in floating point arithmetic, + especially for mixed complex/real -float operations. + * optimization: constant double and single floats are stored in native + unboxed format on x86[-64]. + * optimization: smarter code for arithmetic operations with constant floats, + complex floats, or integers on x86[-64]. + * optimization: smarter code for conjugate/multiplication of float complexes + and abs/negate of floats on x86-64. + * optimization: more efficient complex float and real float operations on + x86-64. + * improvement: complex float division is slightly more stable. + * improvement: DESCRIBE output has been reworked to be easier to read and + contains more pertinent information. + * improvement: failure to provide requested stack allocation compiler notes + provided in all cases (requested stack allocation not happening without a + note being issued is now considered a bug.) + * bug fix: SB-POSIX exports the documented types and functions + FILE-DESCRIPTOR and FILENAME, and also the corresponding -DESCRIPTOR + types. (reported by "abhi") + * bug fix: on 64 bit platforms FILL worked incorrectly on arrays with + upgraded element type (COMPLEX SINGLE-FLOAT), regression from 1.0.28.55. + (thanks to Paul Khuong) + * bug fix: looping around HANDLER-CASE could silently consume stack space + on each iteration. (reported by "foobar") + * bug fix: better error signalling when calls to functions seeking elements + from lists (eg. ADJOIN) are compiled with both :TEST and :TEST-NOT. + (reported by Tobias Rittweiler) + * bug fix: regressions in DIRECTORY from 1.0.28.61: pattern matching of + directory components now works as it used to. (various prolems reported by + Michael Becker, Gabriel Dos Reis, Cyrus Harmon, and Harald Hanche-Olsen) + * bug fix: :PTY option in RUN-PROGRAM was broken with stream arguments. + (reported by Elliot Slaughter, thanks to Stas Boukarev) + * bug fix: bogus undefined variable warnings from fopcompiled references to + global variables. (thanks to Lars Rune Nøstdal) + * bug fix: foreign function names should now appear in backtraces on + FC6 as well. (reported by Tomasz Skutnik and Tobias Rautenkranz) + * bug fix: SETF compiler macro documentation strings are not discarded + anymore. + * bug fix: GENTEMP is now unaffected by pretty printer dispatch table. + (thanks to Alex Plotnick) + * bug fix: SLEEP accepts large integer arguments, truncating them to + SIGNED-WORD on the assumption that sleeping for 68 years is sufficient + for anyone. (reported by Leslie Polzer, thanks to Stas Boukarev) + * bug fix: compiler notes for expensive slot type checks could be emitted + at runtime MAKE-INSTANCE calls. (reported by Samium Gromoff) + +changes in sbcl-1.0.29 relative to 1.0.28: + * IMPORTANT: bug database has moved from the BUGS file to Launchpad + https://bugs.launchpad.net/sbcl + Bugs can be reported directly there, or by sending email to + sbcl-bugs@lists.sourceforge.net + (no subscription required.) * minor incompatible change: under weak type checking policy integer types are weakened less aggressively. * minor incompatible change: SAVE-LISP-AND-DIE :TOPLEVEL function is now allowed to return, which causes SBCL to quit with exit status 0. Previously if the function returned with a small integer return value, that value was accidentally reused as the exit status. + * new feature: SB-EXT:DEFINE-HASH-TABLE-TEST allows defining new arguments + to MAKE-HASH-TABLE :TEST, and MAKE-HASH-TABLE has been extended with + :HASH-FUNCTION argument. Refer to user manual for details. * new feature: SB-EXT:DEFGLOBAL macro allows defining global non-special variables. + * new feature: SB-EXT:GET-TIME-OF-DAY provides access to seconds and + microseconds since the Unix epoch on all platforms. * new feature: SB-EXT:ALWAYS-BOUND proclamation inhibits MAKUNBOUND, and allows the compiler to safely elide boundedness checks for special variables. @@ -15,7 +212,6 @@ efficiency measure for threaded platforms, but also valueable in expressing intent. * new feature: UNC pathnames are now understood by the system on Windows. - However, DIRECTORY does not yet support them -- but OPEN &co do. * optimization: the compiler uses a specialized version of FILL when the element type is know in more cases, making eg. (UNSIGNED-BYTE 8) case almost 90% faster. @@ -46,6 +242,7 @@ * improvement: pretty-printing loop has been implemented properly. (thanks to Tobias Rittweiler) * documentation: CLOS slot typechecing policy has been documented. + * bug fix: FILE-AUTHOR no longer signals an error on Windows. * bug fix: SB-SPROF could be foiled by foreign code not have a frame pointer, leading to memory faults. (thanks to Bart Botta) * bug fix: better floating point exception handling on x86/OpenBSD. @@ -79,6 +276,8 @@ * bug fix: signals delivered to threads started from foreign land (read: directly by pthread_create, not by MAKE-THREAD) are redirected to a Lisp thread by blocking all signals and resignalling. + * bug fix: SHARED-INITIALIZE initialized unbound :ALLOCATION :CLASS slots + from :INITFORM, if any. changes in sbcl-1.0.28 relative to 1.0.27: * a number of bugs in cross-compilation have been fixed, with the ultimate