changes in sbcl-2.3.8 relative to sbcl-2.3.7:
* enhancement: a mark-region parallel garbage collector is available as a
build-time option; it can be enabled by adding
`--without-gencgc --with-mark-region-gc`
to the build command line. (Thanks to Hayley Patton)
* enhancement: Stack allocation via DYNAMIC-EXTENT is now possible for
conditionals even when not all branches are stack-allocatable. Previously
all branches needed to be stack-allocatable for the otherwise-inaccessible
subparts to get stack allocated.
* platform support:
** on Mac OS X Sonoma, loading the memory image no longer fails.
(lp#2029430, reported by cladur)
** on Darwin, we no longer reimplement nanosleep().
** on PPC64, undefined function errors now work.
** on ARM64/OpenBSD, enable the GCC TLS feature. (thanks to Sébastien
Marie)
** when building the system, only display a reasonable amount of timing
precision. (thanks to Philipp Marek)
* bug fix: handling of inlining functions compiled to return unboxed values
no longer crashes the compiler. (lp#2029020, reported by Pascal
J. Bourguignon)
* bug fix: the source location for code executed within a top-level
(EVAL-WHEN (:COMPILE-TOPLEVEL) ...) form is now more useful.
* bug fix: address a race between user threads cancelling finalizers and the
finalizer thread executing them. (lp#2029306)
* bug fix: complex division returns the same value when evaluated inline and
out-of-line. (lp#2030097)
* bug fix: the pretty-printer no longer deletes syntactically-significant
whitespace immediately preceding a newline. (lp#1985814, reported by Mark
David)
* optimization: the compiler is more aware of the result type of the
NUMERATOR function.
* optimization: EQUAL and EQUALP compile to more efficient code when the two
arguments are known to be of the same nullable type.
* optimization: converting bignums to floats uses no intermediate memory.