procedures with large numbers of variables:
- added pass-time tracking for pre-cpnanopass passes to compile.
compile.ss
- added inline handler for fxdiv-and-mod
cp0.ss, primdata.ss
- changed order in which return-point operations are done (adjust
sfp first, then store return values, then restore local saves) to
avoid storing return values to homes beyond the end of the stack
in cases where adjusting sfp might result in a call to dooverflood.
cpnanopass.ss, np-languages.ss
- removed unused {make-,}asm-return-registers bindings
cpnanopass.ss
- corrected the max-fv value field of the lambda produced by the
hand-coded bytevector=? handler.
cpnanopass.ss
- reduced live-pointer and inspector free-variable mask computation
overhead
cpnanopass.ss
- moved regvec cset copies to driver so they aren't copied each
time a uvar is assigned to a register. removed checks for
missing register csets, since registers always have csets.
cpnanopass.ss
- added closure-rep else clause in record-inspector-information!.
cpnanopass.ss
- augmented tree representation with a constant representation
for full trees to reduce the overhead of manipulating trees or
subtress with all bits set.
cpnanopass.ss
- tree-for-each now takes start and end offsets; this cuts the
cost of traversing and applying the action when the range of
applicable offsets is other than 0..tree-size.
cpnanopass.ss
- introduced the notion of poison variables to reduce the cost of
register/frame allocation for procedures with large sets of local
variables. When the number of local variables exceeds a given
limit (currently hardwired to 1000), each variable with a large
live range is considered poison. A reasonable set of variables
with large live ranges (the set of poison variables) is computed
by successive approximation to avoid excessive overhead. Poison
variables directly conflict with all spillables, and all non-poison
spillables indirectly conflict with all poison spillables through
a shared poison-cset. Thus poison variables cannot live in the
same location as any other variable, i.e., they poison the location.
Conflicts between frame locations and poison variables are handled
normally, which allows poison variables to be assigned to
move-related frame homes. Poison variables are spilled prior to
register allocation, so conflicts between registers and poison
variables are not represented. move relations between poison
variables and frame variables are recorded as usual, but other
move relations involving poison variables are not recorded.
cpnanopass.ss, np-languages.ss
- changed the way a uvar's degree is decremented by remove-victim!.
instead of checking for a conflict between each pair of victim
and keeper and decrementing when the conflict is found, remove-victim!
now decrements the degree of each var in each victim's conflict
set. while this might decrement other victims' degrees unnecessarily,
it can be much less expensive when large numbers of variables are
involved, since the number of conflicts between two non-poison
variables should be small due to the selection process for
(non-)poison variables and the fact that the unspillables introduced
by instruction selection should also have few conflicts. That
is, it reduces the worst-case complexity of decrementing degrees
from O(n^2) to O(n).
cpnanopass.ss
- took advice in compute-degree! comment to increment the uvars in
each registers csets rather than looping over the registers for
each uvar asking whether the register conflicts with the uvar.
cpnanopass.ss
- assign-new-frame! now zeros out save-weight for local saves, since
once they are explicitly saved and restored, they are no longer
call-live and thus have no save cost.
cpnanopass.ss
- desensitized the let-values source-caching timing test slightly
8.ms
- updated allx, bullyx patches
patch*
original commit: 3a49d0193ae57b8e31ec6a00b5b49db31a52373f
month and year at the time of generation.
csug.stex, copyright.stex
- Updated configuration to set machine types in the CSUG and release notes
make files, and updated distclean target to remove these files.
configure, makefiles/Makefile-csug.in (renamed from csug/Makefile),
makefiles/Makefile-release_notes.in
(renamed from release_notes/Makefile),
makefiles/Makefile
original commit: d4fdb3e0c88c40cceeeeeb52032068408edc7a6e
redundant keys and expands into exclusive-cond rather than cond.
it catches references to => before expanding into exclusive-cond
to avoid supporting => as an undocumented and useless extension
of the case syntax. the r6rs:case and case macros now require
multiple clauses rather than leaving the enforcement to exclusive-cond,
and the exclusive-cond macro now requires multiple clauses rather
than leaving the enforcement to cond.
syntax.ss,
4.ms, root-experr*, patch*
original commit: 303921d8515b101c558a056dcf9c05f7cad97f4a
and curly braces, since the current cmtt font seems to support these
characters better than it once did.
csug/scheme.sty
release_notes/scheme.sty
original commit: f6c57b55cfbe34b269a606bd96983d62191a9aa1
an existing setting will not interfere with the build process, and
added a note to BUILDING that CHEZSCHEMELIBDIRS should be unset in
Version 9.5 and before.
s/Mf-base, mats/Mf-base, BUILDING
original commit: 1cccd56693911a38ece784da677e35f724950700
scheme.1.in, newrelease
- removed version update of no-longer-existing bldnt.bat. "fixed"
sed patterns to replace \? with * for the benefit of the deficient
mac sed.
newrelease
- updated version to 9.5
bintar BUILDING NOTICE makefiles/Mf-install.in scheme.1.in
c/Makefile.i3nt c/Makefile.a6nt c/Makefile.ti3nt c/Makefile.ta6nt
workarea c/scheme.rc s/7.ss s/cmacros.ss
release_notes/release_notes.stex csug/csug.stex
- updated release notes and fixed user's guide overfull hbox.
release-notes.stex, syntax.stex
- updated install target to do something more sensible
release_notes/Makefile
original commit: adb3b7bb22ddaa1ba91b98b6f4a647427c3a4d9b
convention that the only undocumented externs are prefixed with
S_.
externs.h, stats.c, thread.c
original commit: 898c3941d807a18c393a4575a72283e3671ee7e5
in tail and predicate context and added regression tests. Thanks to
@marcomaggi for reporting the bug and @yjqww6 for providing a
simplified test and finding the initial solution.
cpnanopass.ss,
3.ms
original commit: 28f31d84b6c45e2fa701655e9131801dd603d925
- Separate 64 and 32 bit MSIs
- Add wix bundle to combine MSIs into single installer
- Use basic wix UI
- Use merge modules to install vcredist package
- Add script to locate vcredist merge modules
- Fix installer status text by adding WixUI_ErrorProgressText ref
Merge modules seems to be the preferred method for installing the
redistributable package, which should decrease the package size and
speed up installation. This commit also addresses a bug where the
installer does not work when VC redistributable is not already
installed.
The 32 and 64 bit components were split into separate MSIs because
Windows Installer only officially supports packages containing a
single architecture. A package bundle is then created containing both
MSIs so only a single file needs to be distributed.
There seemed to be no trivial way to get the path to the vcredist
merge modules bundled with visual studio so I added a script
(locate-vcredist.bat) that handles this. It will need to be updated in
the future for compatibility with newer VS platform toolsets.
Some paths and name were changed, here's a summary:
32-bit install path: C:\Program Files (x86)\Chez Scheme 9.4.1\
64-bit install path: C:\Program Files\Chez Scheme 9.4.1\
installer file name: ChezScheme.exe
installer product name: Chez Scheme 9.4.1 x64
original commit: a8867749df27db41ebbafeb0dc914e5e6680cf9e
updated ez-grammar-test to write temp files to current directory and delete them when finished
original commit: 89885b73d679759de9c62bab0b407318df123d6f
Add optional beginning-line and beginning-column components to a
source object, so that line and column information can be recorded
independent of the file. Add `locate-source-object-source` to use
the recorded information. Add a cache for `locate-source` as enabled by
the `use-cache?` optional argument, which can avoid compilation times
that are quadratic in the number of `let-values` or `define-values`
forms.
original commit: b36fab81d5041a54ce01a422395eee79d2f930bc
Revert the use of ephemeron pairs in weak hashtables, since the
difference is visible via guardians. Add hashtable based on ephemerons
(to avoid key-in-value problems) as an explicit variant.
original commit: 31ac6d78592e1a9ba6bfbe802260e3d56d4cf772
