X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=28f4515d477369cc34bfe65493bf8b706734c7be;hb=1d68d81c3022715f83faeff6ccc9836975783462;hp=faa680328e5fa4bb4ee2ee0e0c7f307c1e0c6a61;hpb=e31ed154cb5def7fd335fe46da7e6552a43ee648;p=sbcl.git diff --git a/NEWS b/NEWS index faa6803..28f4515 100644 --- a/NEWS +++ b/NEWS @@ -1,4 +1,211 @@ ;;;; -*- coding: utf-8; fill-column: 78 -*- +changes relative to sbcl-1.1.7: + * notice: The implementation of MAP-ALLOCATED-OBJECTS (the heart of + ROOM, plus a few SB-INTROSPECT functions) has been completely + rewritten; it may now exhibit different bugs than before. + * new feature: minimal runtime/compiler intrastructure support for SSE + SIMD values, as SB-EXT:SIMD-PACK. Enabled on x86-64 via the build-time + feature :sb-simd-pack. This should enable intrinsics extensions as + libraries, without patching SBCL itself. Thanks to Alexander Gavrilov + for maintaining a branch for so long. + * enhancement: RUN-PROGRAM supports a :DIRECTORY argument to set + the working directory of the spawned process. + (lp#791800) (patch by Matthias Benkard) + * enhancement: boxed vectors (vectors of T or of FIXNUM) can now be + stack-allocated on PPC. + * enhancement: "fixed objects" can now be stack-allocated on PPC. + * enhancement: WITH-PINNED-OBJECTS no longer conses on PPC/GENCGC. + * enhancement: (sb-introspect:find-definition-sources-by-name x :vop) now + also returns VOPs which do not translate any functions, and finds + defoptimizer types ir2convert and stack-allocate-result. + * enhancement: better type derivation for APPEND, NCONC, LIST. + (lp#538957) + * enhancement: MAP-ALLOCATED-OBJECTS (the heart of ROOM) now walks the + heap in a manner similar to the GC rather than its previous ad-hoc + scheme, and is therefore no less and possibly more accurate. + * fixes and enhancements related to Unicode: + ** the character database information has been updated to Unicode 6.2; + ** support for canonical and compatibility decomposition of characters has + been added, along with support for primary composition; + ** support for Unicode normalization forms of strings (NFC, NFKC, NFD and + NFKD) has been included; + ** querying the character database for code points not defined by Unicode + gives less wrong answers (lp#1178038, reported by Ken Harris) + * enhancement: print intermediate evaluation results for some ASSERTed + expressions. (lp#789497) (patch by Alexandra Barchunova) + * enhancement: x86-64 disassemblies are annotated with unboxed constant + values when there are references to (RIP-relative) unboxed constants. + * bug fix: type derivation for LOG{AND,IOR,XOR} scales linearly instead + of quadratically with the size of the input in the worst case. + (lp#1096444) + * bug fix: handle errors when initializing *default-pathname-defaults*, + sb-ext:*runtime-pathname*, sb-ext:*posix-argv* on startup, like character + decoding errors, or directories being deleted. + * bug fix: Loading a core with a discontiguous dynamic space now correctly + computes the amount of dynamic space used. + * bug fix: disassembler missing ",8" on SHLD + * bug fix: backtracing through INTERNAL-ERROR signal handlers on systems + that provide an "invalid" stack frame link for the signal handler + itself now use the saved-fp-and-pc mechanism to pick up from the stack + frame in the interrupt (signal) context. This is known to affect + threaded FreeBSD/x86-64. + * bug fix: some LOOP statements couldn't be compiled. + (lp#1178989) + * bug fix: sb-sequence:dosequence works on literal vectors. + * bug fix: errors in generic arithmetic show the assembly routine's + caller on x86 and x86-64. (lp#800343) + * bug fix: Compile-time type errors should never result in COMPILE-FILE + failure. (lp#943953) + * bug fix: Known bad local calls do not cause strange failures when + emitting or dumping code. (lp#504121) + * bug fix: Multiply-inlined structure constructor don't cause IR2-time + codegen errors: type checks are inserted as necessary. (lp#1177703) + * bug fix: Unsigned modular arithmetic is correctly converted into signed + modular arithemtic (mostly to exploit fixnum-width VOPs). (lp#1026634) + * bug fix: a combination of inlined local function with &optional and + recursion no longer causes undescriptive compiler errors. (lp#1180992) + * bug fix: sub-word BOOLEAN alien types now disregard higher order bits + when testing for non-zero-ness. + * bug fix: (CONCATENATE 'null ...) no longer fails for generic sequences. + (lp#1162301) + * optimization: faster ISQRT on fixnums and small bignums + * optimization: faster and smaller INTEGER-LENGTH on fixnums on x86-64. + * optimization: On x86-64, the number of multi-byte NOP instructions used + for code alignment is now always minimal. + * optimization: On 64-bit targets, the compiler generates much faster + code for type checks for types known at compile time that are smaller + than (SIGNED-BYTE 64) or (UNSIGNED-BYTE 64) and larger than FIXNUM, and + their COMPLEX variants. + * optimization: On x86 targets, more uses of ALIEN-FUNCALL during cross + compilation now inline the INVOKE-WITH-SAVED-FP-AND-PC dance. + * optimization: ROOM no longer conses so egregiously on non-x86oid + systems. + * optimization: associative bitwise operations reassociate patterns like + (f (f x k1) k2) to expose (f x (f k1 k2)). Same for + and * of + rational values. + * optimization: quasiquote expressions now perform more constant folding, + instead of consing equal lists at runtime. (lp#1026439) + * optimization: local call analysis of inlined higher-order function + should converge more quickly, resulting in better code for complex + functions. + * optimization: On x86-64, medium (word-sized but wider than 32 bits) + integer constants are handled more cleverly, especially when they + can be represented as sign-extended (signed-byte 32). (Based on a + patch by Douglas Katzman) + * optimization: IF/IF conversion should reliably result in sane code + when (some of) the results of the inner IF are always false or + always true. + +changes in sbcl-1.1.7 relative to sbcl-1.1.6: + * enhancement: TRACE :PRINT-ALL handles multiple-valued forms. + (lp#457053) + * bug fix: :allocation slot option works for condition slots + (lp#1049404) + * bug fix: redefining conditions does not lead to multiple evaluations of + hairy slot initfunctions anymore (lp#1164969) + * bug fix: CLASS-DIRECT-DEFAULT-INITARGS now works for condition classes + (lp#1164970) + * bug fix: function constants now work as initforms and default initarg + values of conditions (lp#539517) + * bug fix: svref/(setf svref) on symbol macros don't crash the compiler + anymore. (Minimal test case provided by James M. Lawrence on sbcl-devel) + * bug fix: no more bogus ## references when pretty printing backquoted + forms with non-trivial structure sharing. (lp#1161218) + * bug fix: Don't signal an error on (setf (documentation nil 'function) + "doc"). Signal a style-warning instead when trying to set documentation + of NIL for all other documentation types. (Reported by Zach + Beane; regression since 2e52fa05.) + * bug fix: modular arithmetic involving large constants and conditionals + should no longer result in spurious dead code elimination. (Reported by + Eric Marsden). + * bug fix: our mach exception handler can seemingly called very early in + the program execution process on OS X 10.8.0. Try and handle that case + robustly, without potentially leaking mach ports too much. + * optimization: LOGBITP and LOGTEST optimizations from x86 ported to x86_64. + +changes in sbcl-1.1.6 relative to sbcl-1.1.5: + * enhancement: the continuable error when defknown-ing over extant + fndb entries can be ignored by passing :overwrite-fndb-silently t + as a keyword argument to sb-c:defknown (after attributes). Useful + to allow defknown to be re-loaded. Use with :allow-other-keys t + for backward compatibility. + * optimization: compiler is much faster in compiling SVREF and (SETF SVREF) + forms. + * bug fix: Prevent a make-array transform from modifying source forms + causing problems for inlined code. Thanks to Bart Botta. + (regression since 1.0.42.11-bis) + * bug fix: clear-output calls the correct gray stream routine, + sb-gray:stream-clear-output. (lp#1153257) + * bug fix: an error is signalled for an invalid format modifier: ~<~@>. + (lp#1153148) + * bug fix: Better error messages for package operations (lp#1154776) + * bug fix: delete-package on a nonexistent package should signal a cerror. + (regression since 1.0.37.44). + * bug fix: accessing &MORE (stack allocated &REST) arguments checks bounds. + (lp#1154946, lp#1072112) + * bug fix: compiling make-array no longer signals an error when the + element-type is an uknown type, a warning is issued instead. + Thanks to James Kalenius (lp#1156095) + * bug fix: SEARCH on generic (non-VECTOR non-LIST) sequence types no longer + produces wrong results for some inputs. (Thanks to Jan Moringen.) + (lp#1153312) + +changes in sbcl-1.1.5 relative to sbcl-1.1.4: + * minor incompatible change: SB-SPROF:WITH-PROFILING no longer loops + by default. + * new feature: package local nicknames. See manual for details. + * new feature: SB-EXT:MAP-DIRECTORY provides a powerful interface for + directory traversal: it is the backend used by SBCL for CL:DIRECTORY. + * enhancement: easier to use restarts for resolving name-conflicts + resulting from IMPORT, EXPORT, or USE-PACKAGE. + * enhancement: variant DEFPACKAGE forms now signal a full error with + restarts provided for resolving the situation. (lp#891351) + * enhancement: by setting SB-EXT:*ON-PACKAGE-VARIANCE* appropriately variant + DEFPACKAGE forms can now signal a full error with restarts provided for + resolving the situation. See manual for details. (lp#891351) + * enhancement: make-random-state now uses CryptGenRandom as a seed on Windows. + (Thanks to Anton Kovalenko.) (lp#1102748) + * enhancement: backtrace improvements + ** secondary CLOS dispatch functions have better debug names (lp#503081) + ** easier to read method names in backtraces. See + SB-DEBUG:*METHOD-FRAME-STYLE*. + ** SB-DEBUG:PRINT-BACKTRACE and SB-DEBUG:LIST-BACKTRACE are available as + forwards-compatible replacements for SB-DEBUG:BACKTRACE and + SB-DEBUG:BACKTRACE-AS-LIST. + ** SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS** has been deprecated, as the same + information is available in less intrusive form as frame annotations. + * enhancement: SB-POSIX now provides MAP-ANON. + * enhancement: test-suite results are colorized, failures in red, unexpected + success in green. Works on Windows and on terminals with ANSI escape code + support. Can be disabled with --no-color. + * optimization: SB-CONCURRENCY:QUEUE implementation is more efficient. + (thanks to James M. Lawrence) + * bug fix: no more unused variable style warnings from RESTART-CASE + macroexpansion (lp#1113859) + * bug fix: no more unused variable style warnings when loading + sb-bsd-sockets.asd (lp#1114681) + * bug fix: deleting a package removes it from implementation-package + lists of other packages. + * bug fix: SB-SPROF:WITH-PROFILING is now usable in the Slime REPL on Darwin. + This does not fix the occasional "interrupt already pending" issue, though. + * bug fix: (setf (documentation 'x 'function)) and + (setf (documentation #'x t)) set documentation in different places. + (regression since 1.0.43.63) + * bug fix: build on newer glibc. (lp#1095036) + +changes in sbcl-1.1.4 relative to sbcl-1.1.3: + * optimization: LOOP expressions using "of-type character" have slightly + more efficient expansions. + * bug fix: very long (or infinite) constant lists in DOLIST do not result + in very long compile times or heap exhaustion anymore. (lp#1095488) + * bug fix: `#3(1) is read as #(1 1 1), not as #(1). (lp#1095918) + * bug fix: adjust-array ignored :initial-element for simple-vectors. + (lp#1096359) + * bug fix: optimizations to MAKE-INSTANCE with literal list initargs no + longer cause infinite loops (on circular data) or violate eqlity + constraints. (lp#1099708) + * bug fix: FIRST was not being open coded. (regression from 1.1.0) + changes in sbcl-1.1.3 relative to sbcl-1.1.2: * enhancement: warnings about bad locale settings, LANG, LC_CTYPE, etc. (lp#727625)