[Sbcl-announce] sbcl-2.1.10 released

[Christophe Rhodes]

Dear all,

I've released SBCL 2.1.10; sources and some binaries are ready for
download at Sourceforge, with binaries for more platforms to follow. As
well as the changes in this release summarized below, users might wish
to be aware that there are some apparently large performance changes in
some uses of vector operations on x86-64, for reasons that are not
clear: if you experience a slowdown or a speedup in vectorized code
(e.g. using sb-simd) between this release and an earlier one, please let
the developer list at sbcl-devel know.

Best wishes,

Christophe

changes in sbcl-2.1.10 relative to sbcl-2.1.9:
* incompatible change: simd-pack without a specific element-type is no
longer treated as containing integers. A type must be supplied for VOPs to
work on such values.
* minor incompatible change: the list form of the FUNCTION type specifier
does not allow * as any argument type, but does allow * as a placeholder
for wholly unspecified arguments when specifying the value(s) type.
* minor incompatible change: the default (Lisp) toplevel option parser
throws an error if it encounters an option which was intended to be used
and removed by the C runtime. (lp#1945081, reported by Luke Gorrie)
* new feature: there is now a defined interface for defining foreign
callable functions, which can be used for passing callbacks to foreign
functions or for calling Lisp code from the foreign world as a shared
library (preliminary support). See the revised manual section "Calling
into Lisp From C" for more details.
* enhancement: arg-count mismatches in self-calls in defmethod are reported.
(lp#1912436, reported by 3b)
* enhancement: the SB-CLTL2 contrib now returns type information for
generated structure accessors. (lp#1934859, reported by SATO shinichi)
* optimization: code generation is improved for modular arithmetic involving
signed operations.
* platform support:
** x86-64 machine code emitter crash when attempting to assemble some
vector instructions. (lp#1945975, thanks to Marco Heisig)
** conditional move instructions are now supported on arm64.
** a number of new peephole optimizations have been implemented on arm64.
** arm64 on Darwin now uses gcc-compatible thread-local storage.
* bug fix: compiler notes are no longer emitted when compiling FORMATTER
forms, including when implicitly triggered on a constant string argument
to FORMAT. (lp#1946246, reported by SATO shinichi)
* bug fix: a compiler error when attempting to compile a call to AREF with
too many dimensions. (lp#1902985)
* bug fix: harmonize the behaviour of SLOT-BOUNDP on non-standard-objects
between the various ways in which it can be called. (lp#732229, reported
by Zach Beane)
* bug fix: FTRUNCATE and similar functions are now more careful about
deriving facts about the sign of zero they might return. (lp#1732009,
reported by Paul Dietz)



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