e256a4ba18
math.intervals: workaround possible compiler bug by widening interval-bitor.
...
IN: scratchpad [
{ byte-array } declare
[ 0 alien-unsigned-4 32 shift ]
[ 4 alien-unsigned-4 ] bi bitor
64 >signed
] optimized.
! working
[
dup >R 0 alien-unsigned-4 32 fixnum-shift
R> 4 alien-unsigned-4 over tag 0 eq?
[ fixnum-bitor ] [ fixnum>bignum bignum-bitor ] if
18446744073709551615 >R >bignum R> bignum-bitand
dup 63 bignum-bit? [ 18446744073709551616 bignum- ] [ ] if
]
! broken
[
dup >R 0 alien-unsigned-4 32 fixnum-shift
R> 4 alien-unsigned-4 over tag 0 eq?
[ fixnum-bitor ] [ fixnum>bignum bignum-bitor ] if
dup 63 bignum-bit? [ 18446744073709551616 bignum- ] [ ] if
]
The second case correctly eliminates the bitand but incorrectly assumes
that the item on the stack (which is an integer -- either a fixnum or a
bignum), was converted to a bignum.
2019-10-31 10:45:54 -07:00
f68df75b84
math.intervals: simplify interval-bitand.
2019-10-31 10:45:36 -07:00
bccdb5419b
math.intervals: improve interval-bitand.
2019-10-31 10:27:17 -07:00
20c4e2feaa
math.intervals: remove extra non-interval tests.
2019-10-30 09:47:04 -07:00
30f2d6e78f
math.intervals.tests: clean up literal syntax
2019-10-30 09:44:39 -07:00
449224878f
math.intervals: more exact interval-bitxor operation
...
- fixed: `interval-bitxor` caused bit-growth
- improved: `interval-bitxor` more exact case for negative intervals
2019-10-30 09:44:23 -07:00
713cfa79f8
math.intervals: more exact interval-bitor operation
...
Addresses #2170
- fixed: `interval-bitor` caused bit-growth
- improved: `interval-bitor` more exact about lower bounds
The added utility words could be used as a basis to make the other bitwise
interval operations more exact also.
2019-10-30 09:43:44 -07:00
14d75bbbcb
math.intervals: Consistent handling of special intervals
...
Make both `empty-interval` and `full-interval` singletons, use generic functions
and methods where they are special-cased.
All words which work with interval points should also now work with the special
intervals.
2019-09-09 14:09:57 -07:00
e189954ecc
core: Rename iota to <iota> so we can have TUPLE: iota ... ; instead of TUPLE: iota-tuple ... ;
2017-06-02 11:57:05 -05:00
e477f6996f
Fix comments to be ! not #!.
2015-09-08 16:15:10 -07:00
892c62e1dc
factor: second stab at [ ] [ ] unit-test -> { } [ ] unit-test
2015-07-03 09:39:59 -07:00
59f3b1ea57
Revert "factor: rename [ ] [ ] unit-test -> { } [ ] unit-test using a refactoring tool!"
...
Needs a bit more work.
This reverts commit 7e54cc2824
2015-07-02 13:47:06 -07:00
7e54cc2824
factor: rename [ ] [ ] unit-test -> { } [ ] unit-test using a refactoring tool!
2015-07-02 11:36:08 -07:00
57f9d78892
improve help by linking to types directly.
2014-05-23 20:20:15 -07:00
013160df9a
change some "2drop 2drop" to "4drop".
2012-10-23 12:21:30 -07:00
0359a4e823
math.intervals: using short-circuit logic.
2012-07-17 20:08:12 -07:00
51c033a1f6
Fix all failures in the linux64 build email
2011-10-24 19:33:09 -07:00
181f11faa8
Make M\ throw an error upon lookup failure. Change method -> ?lookup-method, lookup-method is the throwing version of ?lookup-method. Fixes #229 .
2011-10-03 15:49:49 -07:00
e8ce62c64e
math.intervals: fix some typos in docs
2011-01-18 21:18:35 +09:00
4c71d71907
random is generic now -- iota random -> random
2010-01-14 12:48:57 -06:00
df4fb4a3ee
Removing integers-as-sequences
2010-01-15 07:15:33 +13:00
0612bc6177
Factor source files should not be executable
2009-11-21 17:50:43 -06:00
61d579360d
remove non-primitive-related uses of tuck from basis
2009-11-05 17:03:24 -06:00
bd13e018dd
memq? -> member-eq?, sorted-memq? -> sorted-member-eq?
2009-10-28 15:02:00 -05:00
405e5d015b
docs: change $subsection to $subsections
2009-10-02 12:15:48 -04:00
2bb6293217
compiler: add fixnum-min/max intrinsics; ~10% speedup on benchmark.yuv-to-rgb
2009-08-28 19:02:59 -05:00
f82627e736
math.intervals: comment out questionable unit tests
2009-08-22 19:39:32 -05:00
81b72cb5c5
Add some unit tests
2009-08-22 17:15:10 -05:00
770429a629
math.intervals: help lint fix
2009-08-19 16:08:52 -05:00
2bc38bf019
math.intervals: tighter interval arithmetic for intervals with infinities
2009-08-19 02:32:18 -05:00
7c92ab1ea5
move if-zero etc to math, remove 1-/1+ from math
2009-08-14 14:27:23 -05:00
4ecf5a904a
More accurate wrap-interval in compiler.tree.propagation.info fixes test regression; constructing an interval with endpoints at infinity now outputs full-interval
2009-08-12 03:25:53 -05:00
7bfbb0c5ac
math.intervals: fix interval-rem
2009-08-11 16:49:28 -05:00
7e35723db0
compiler.tree.propagation: be more careful with intervals, ensuring that the inferred interval of a value is a subset of the value class's interval. This improves accuracy, for example [ >fixnum 1 + >fixnum most-positive-fixnum <= ] constant-folds to true
2009-08-10 01:16:49 -05:00
1cb0f3370b
math.vectors.specialization: first attempt at some call site splitting for vector ops. Specialized array types generate customized variants of all vector words, if input types are known at compile time, a call to the specialized version is inserted
2009-08-09 03:07:33 -05:00
e400d80d8b
More accurate interval inference for mod, rem, and propagation can now infer intervals in the case where a value might be f. so, [ [ 127 bitand ] [ drop f ] if dup [ 0 >= ] [ not ] if ] now constant-folds down to 't'!
2009-08-08 23:03:45 -05:00
61ea749bb6
More accurate interval-mod and interval-rem
2009-08-08 22:01:12 -05:00
d7b40d72a0
Code cleanups
2009-05-07 12:33:31 -05:00
d168f76ab0
remove 1-, 1+, use iota somewhere
2009-05-05 23:32:23 -05:00
3353a777f7
Fixing some unit test failures
2009-04-22 07:05:00 -05:00
364ea217ef
fix more compiler errors
2009-04-17 14:44:08 -05:00
a4e62dfdba
Fix for math.parser syntax change
2009-04-13 14:47:39 -05:00
a5116d0b5d
Remove two swapd usages
2009-02-02 14:26:54 -06:00
3c408342ef
renaming: contain? -> any?, deep-contains? -> deep-any?, pad-left -> pad-head, pad-right -> pad-tail, trim-left -> trim-head, trim-right -> trim-tail
2009-01-29 22:19:07 -06:00
34792a9f23
Remove >r/r>
2008-12-17 19:17:37 -06:00
63fda570bf
Fixing assorted compile errors and help lint warnings
2008-12-16 01:12:36 -06:00
daf2857d7b
define-inline now takes an effect parameter
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C: now sets the stack effect of the new word to slot names
add new basis/constants vocab; CONSTANT: foo bar is equivalent to : foo bar ; inline
(going to fold CONSTANT:, ALIAS: and qualified into core soon perhaps)
tighten the screws: inline words now need a stack declaration too
update some usages of inline words
2008-12-15 19:44:56 -06:00
e4f8448eb1
Fix some problems with arithmetic type inference, exposed by recent changes to log2 word
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- declared input type for bignum-shift was stricter than the runtime behavior, leading to bad propagation of type info if shift count was a bignum
- types inferred for type functions which used number-valued/integer-valued/real-valued were not always precise, eg bignum bignum bitxor => integer
- add interval-log2, type function for (log2)
- remove math-class-min, it was useless
2008-12-07 19:44:49 -06:00
5d8b3c3fb1
Cleanup math.intervals and eliminate >r r> usage
2008-11-17 17:20:56 -05:00
93e9e34175
Add $maybe markup element
2008-11-16 06:02:13 -06:00
John Benediktsson
timor
Doug Coleman
Keita Haga
Slava Pestov
Joe Groff
Keith Lazuka
Slava Pestov
Doug Coleman
sheeple
Slava Pestov
Aaron Schaefer