X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=9513f4f2c04e41f954ec07765733410265f7b171;hb=a6a12ed609d5467ec43b411283e5b3568fee81df;hp=b096e39e84db166b2eb7e96c388c378945321239;hpb=600df9154f14937ac2f8b63d172c57a8626a8028;p=sbcl.git diff --git a/NEWS b/NEWS index b096e39..9513f4f 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,97 @@ ;;;; -*- coding: utf-8; fill-column: 78 -*- -changes relative to sbcl-1.0.54: +changes relative to sbcl-1.0.57: + * enhancement: SB-EXT:ATOMIC-UPDATE makes it easy to perform non-destructive + updates of CAS-able places (similar to Clojure's swap!). + * bug fix: potential for infinite recursion during compilation of CLOS slot + typechecks when dependency graph had loops. (lp#1001799) + * bug fix: error forms reported with some program-errors were not escaped + properly. + +changes in sbcl-1.0.57 relative to sbcl-1.0.56: + * RANDOM enhancements and bug fixes: + ** bug fix: the range and distribution of random integers could be + catastrophically wrong when the compiler derived the type of its + argument as a disjoint set of small integers. + ** bug fix: the distribution of random integers is now completely + uniform even when the specified limit is not a power of two. + (Previously some values could be about 0.1 % more probable than + others in the worst case.) + ** RANDOM on large integer arguments is generally faster and conses + less than before; this is visible for fixnums above a length of + about 24 bits, but extremely so for bignums: the old implementation + used time and space quadratical in the size of the argument there, + the new one is linear. + * enhancement: redesigned protocol for quitting SBCL. SB-EXT:EXIT is the new + main entry point, SB-EXT:QUIT is deprecated. + * enhancement: additions to the SB-THREAD API: RETURN-FROM-THREAD, + ABORT-THREAD, MAIN-THREAD-P, and MAIN-THREAD. + * enhancement: FASL loading no longer grabs the world-lock. + * enhancement: GENCGC reclaims space more aggressively when objects being + allocated are a large fraction of the total available heap space. + (lp#936304) + * enhancement: backtraces show the correct number of arguments for frames + called with too many arguments. + * enhancement: support for abort(3), exit(3), and _exit(2) has been added to + SB-POSIX. + * enhancement: ASDF has been updated 2.21. + * optimization: fewer uses of full calls to signed modular functions. + (lp#903821) + * optimization: typechecking alien values is typically 5 x faster. + * optimization: FDEFINITION, SYMBOL-FUNCTION, MACRO-FUNCTION, and FBOUNDP + are 20% faster. + * bug fix: file compilation performance issues when dumping subtypes + of CHARACTER (lp#994487) + * bug fix: fixed disassembly of some SSE instructions on x86-64. + * bug fix: SB-SIMPLE-STREAMS signals an error for bogus :CLASS arguments in + OPEN. (lp#969352, thanks to Kambiz Darabi) + * bug fix: CASE normal-clauses do not allow T and OTHERWISE as keys. + (lp#959687) + * bug fix: (SETF (FIND-CLASS X) NIL) removed proper name of the underlying + classoid even if X was not the proper name of the class. (lp#941102) + * bug fix: declaration leakage between lexical environments due to careless + use of NCONC in MAKE-LEXENV. (lp#924276) + * bug fix: ENSURE-DIRECTORIES-EXIST now works when + *default-pathname-defaults* contains NAME or TYPE components. + * bug fix: PPRINT couldn't print improper lists with CARs being some symbols + from CL package, e.g. (loop . 10). + * bug fix: run-program with existent or non-existent files for :output or + :input when :if-output-exists or :if-input-does-not-exist are NIL properly + returns NIL instead of signalling an obscure error. + * bug fix: fix miscompilation of some logand forms with large constant + arguments. (lp#974406) + * bug fix: account for funcallable-instance objects properly in ROOM. + * bug fix: incorrect octets reported for c-string decoding errors. + (lp#985505) + * bug fix: miscompilation of LDB on the PowerPC platform. (thanks to Bruce + O'Neel) + * bug fix: better input error reporting for COMPILE-FILE. (lp#493380) + * bug fix: default size of non-nursery generations has been shrunk on GENCGC, + allowing faster release of memory back to the OS. (lp#991293) + * bug fix: WITH-DEADLINE (:SECONDS NIL :OVERRIDE T) now drops any + existing deadline for the dynamic scope of its body. + * bug fix: compiler-internal interval arithmetic needed to be more + conservative about open intervals when operated on by monotonic but not + strictly-monotonic functions. (lp#975528) + * bug fix: copy-tree caused stack exhaustion on long linear lists, and now + it's also slightly faster. (lp#998926) + * bug fix: better error messages for malformed declarations. + (lp#1000239) + * bug fix: define-condition didn't return the name of the defined condition. + * documentation: + ** improved docstrings: REPLACE (lp#965592) + +changes in sbcl-1.0.56 relative to sbcl-1.0.55: + * bug fix: fix copy-structure. When copying from stack to heap, garbage + could end up in the heap making GC unhappy. + (Thanks to James Knight, lp#911027) + * enhancements + ** SBCL can now be built using Clang. + ** ASDF has been updated 2.20. + * bug fix: compiler errors when weakening hairy integer types. (lp#913232) + * bug fix: don't complain about a too-hairy lexical environment for inlining + when the function has never been requested for inlining. (lp#963530) + +changes in sbcl-1.0.55 relative to sbcl-1.0.54: * enhancements to building SBCL using make.sh: ** --fancy can be specified to enable all supported feature enhancements. ** --with- and --without- can be used to specify @@ -8,7 +100,8 @@ changes relative to sbcl-1.0.54: (Mainly useful for building 32-bit SBCL's on x86-64 hosts, not full-blows cross-compilation.) * enhancement: extended package prefix syntax :: - which allows specifying the name of the package for a whole form. + which allows specifying name of the default interning package for the + whole form. * enhancement: when *READ-EVAL* is true, arrays with element type other than T can be printed readably using #.-based syntax. (Thanks to Robert Brown) * enhancement: MAKE-ALIEN signals a storage-condition instead of returning a @@ -30,11 +123,24 @@ changes relative to sbcl-1.0.54: deadlock errors are reported in an easier-to-decipher manner. * enhancement: DESCRIBE on type designators reports the expansion in more cases. + * enhancement: SBCL now provides either an explicit :BIG-ENDIAN or + :LITTLE-ENDIAN in *FEATURES*, instead of :BIG-ENDIAN being implied by lack + of the :LITTLE-ENDIAN feature. (Thanks to Luís Oliveira, lp#901661) + * enhancement: better disassembly of segment-prefixes on x86 and other + instruction prefixes (e.g. LOCK) on x86 and x86-64. + * optimization: FIND and POSITION on bit-vectors are orders of magnitude + faster (assuming KEY and TEST are not used, or are sufficiently trivial.) + * optimization: SUBSEQ on vectors of unknown element type is substantially + faster. (lp#902537) + * optimization: specialized arrays with non-zero :INITIAL-ELEMENT can + be stack-allocated. (lp#902351) * optimization: the compiler is smarter about representation selection for floating point constants used in full calls. * optimization: the compiler no longer refuses to coerce large fixnums to single floats inline, except on x86 where this limitation is still necessary. + * optimization: truncation operations on integers with constant divisor + arguments 1 and -1 are optimized away. * bug fix: deadlock detection could report the same deadlock twice, for two different threads. Now a single deadlock is reported exactly once. * bug fix: interval-arithmetic division during type derivation did not @@ -69,6 +175,17 @@ changes relative to sbcl-1.0.54: errors on debugger entry. * bug fix: build ignored --dynamic-space-size= argument to make.sh (regression since 1.0.53) + * bug fix: attempts to stack allocate a required argument to a function with + an external entry point caused compiler-errors. + * bug fix: compiler notes for failed stack allocation for a function argument + no longer claim to be unable to stack allocate the function. + * bug fix: COERCE now signals a type-error on several coercions to + subtypes of CHARACTER that are forbidden according to ANSI. (lp#841312) + * bug fix: missing failure-to-stack-allocate compiler notes for some + forms of MAKE-ARRAY with dynamic-extent. (lp#902351) + * bug fix: some of the compile-time side-effects of DEFCLASS were not caught + by package locks. + * bug fix: Proper handling of --dynamic-space-size option on 32 bit platforms. changes in sbcl-1.0.54 relative to sbcl-1.0.53: * minor incompatible changes: