X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=3f3fe5f8d8c0d163f43dcb873d96ead833c179e1;hb=fd79e33e6b6dacdc52cf6668a5bb7adf75aad6c1;hp=2e581a6fe7528263a6e8587e67922b59d7c956d5;hpb=34c2e4824a6ef0f30e0645303a894da562ebdacc;p=sbcl.git diff --git a/NEWS b/NEWS index 2e581a6..3f3fe5f 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,105 @@ ;;;; -*- coding: utf-8; fill-column: 78 -*- + * 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) + +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. + * new feature: SB-EXT:GLOBAL proclamation inhibits SPECIAL proclamations for + the symbol, prohibits both lexical and dynamic binding. This is mainly an + efficiency measure for threaded platforms, but also valueable in + expressing intent. + * new feature: UNC pathnames are now understood by the system on Windows. + * 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. + * optimization: accesses to potentially non-simple arrays where element type + is known are 50% faster. + * optimization: compiler now generates faster array typechecking code. + * optimization: ARRAY-DIMENSION is now faster for multidimensional and + non-simple arrays. + * optimization: multidimensional array accesses in the absence of type + information regarding array rank are approximately 10% faster due to + open coding of ARRAY-RANK. + * optimization: result of (FILL (MAKE-ARRAY ...) ...) and (REPLACE + (MAKE-ARRAY ...) ...) can be stack allocated if the result of MAKE-ARRAY + form can be. + * optimization: result of call to VECTOR can now be stack allocated. + * optimization: MAKE-ARRAY with :INITIAL-CONTENTS is now vastly faster + as long as the resulting array is one-dimensional and has a known + element type. In particular, :INITIAL-CONTENTS (LIST ...) where the + length of the list matches the known length of the vector does not + allocate the list as an intermediate step. Ditto for VECTOR and simple + backquoted forms. + * optimization: MAKE-ARRAY can now stack allocate in the presence of + :INITIAL-CONTENTS and :INITIAL-ELEMENT as long as the result has a + known element type, and is known to be simple and one dimensional. + * improvement: SBCL now emits a compiler note where stack allocation was + requested but could not be provided (not in all cases, unfortunately) + * improvement: better MACHINE-VERSION responses. (thanks to Josh Elsasser) + * 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. + (thanks to Josh Elsasser) + * bug fix: exit status from QUIT when called under --script was lost + (reported by Hubert Kauker) + * bug fix: MAKE-ARRAY for non-zero :INITIAL-ELEMENT always used the + same implementation of FILL to initialize the array, even if a more + efficient one was available (reported by Stas Boukarev, thanks to + Paul Khuong) + * bug fix: potential miscompilation of array stack allocation on x86 and + x86-64. (reported by Time Tossavainen) + * bug fix: some forms of AND, OR, and COND resulted in expansions that could + result in their subforms being treated as top level forms. (reported by + James Knight) + * bug fix: On x86/x86-64 alien functions declared to return integers shorter + than a machine register could leave garbage in the high bits of the + result register (bug 316325). + * bug fix: disable address space randomization Linux/x86-64 as well, + not just x86-64. (reported by Ken Olum) + * bug fix: Attempting to DEREF an (ALIEN (* T)) would produce a WARNING and + generate incorrect code. + * bug fix: #201; type inference for CONS and ARRAY types could derive + wrong results in the presence of eg. RPLACA or ADJUST-ARRAY. + * bug fix: special variables with a proclaimed specific subtype of FUNCTION + could not be assigned to or bound with PROGV. (reported by Lorenz + Mösenlechner) + * bug fix: the value of CL:- in the inspector was the previous expression + evaluated rather than the expression being evaluated. + * bug fix: constants can no longer be locally declared special. + * 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 + result that building under (at least) clisp should be much more reliable. * minor incompatible changes: echo-streams now propagate unread-char to the underlying input stream, and no longer permit unreading more than one character. @@ -26,6 +126,11 @@ changes in sbcl-1.0.28 relative to 1.0.27: * bug fix: RESTART-FRAME and RETURN-FROM-FRAME stack corruption * bug fix: the discriminating function for PRINT-OBJECT no longer preserves potentially-invalid effective methods in its cache. + * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works with funcallable + instances as well (thanks to Paul Khuong) + * bug fix: using RUN-PROGRAM does not interfere with SB-POSIX:WAIT, + SB-POSIX:WAITPID and their C equivalents. + * bug fix: RUN-PROGRAM does not crash on Darwin when stressed. changes in sbcl-1.0.27 relative to 1.0.26: * new port: support added for x86-64 OpenBSD. (thanks to Josh Elsasser)