Planet SBCL Archives - July, 2026

July, 2026

July, 2026

1st

avx512 assembler support - SBCL Commits
emit-evex: fix encoding of high zmm registers - SBCL Commits
Basic support for avx512 - SBCL Commits
Save avx512 state in separate alloc tramp routines - SBCL Commits
Don't canonicalize whitespace in Texinfo files - SBCL Commits
Reduce core size impact of docstring normalization - SBCL Commits
doc: fix some typos and readability issues - SBCL Commits
context-float-register: support integer ZMMs - SBCL Commits
Remove ymm-reg zmm-reg SCs - SBCL Commits
count transforms: accept :key and :test - SBCL Commits

2nd

avx2 simd-copy-character-string-to-utf8-byte-array - SBCL Commits
various documentation changes - SBCL Commits

3rd

arm64: decode 1/2-byte utf8 C strings using SIMD - SBCL Commits
Adjust a test. - SBCL Commits
[2159529] Closing Bracket and Closing Brace are seen by Loader as delimiters - Launchpad Bugs

4th

Remove a couple of instructions - SBCL Commits
arm64: add BIC <Vd>.<T>, #imm8 - SBCL Commits
Save instructions in simd-copy-utf8-sap-to-character-string - SBCL Commits
Fix crossbuild-runner - SBCL Commits
Remove some type declarations - SBCL Commits

5th

Change sset-hash1 to MIX - SBCL Commits
Flip order of COND clauses in sset-member - SBCL Commits
Use COPY-SEQ in COPY-SSET - SBCL Commits
avx2 simd-copy-utf8-sap-to-character-string - SBCL Commits
Delete obsolete comments - SBCL Commits
Shrink the table in simd-copy-utf8-sap-to-character-string - SBCL Commits

6th

Overwrite the _first_ tombstone in a probing sequence - SBCL Commits

7th

Slightly faster generic simd-copy-character-string-to-utf8-byte-array - SBCL Commits
avx2 simd-copy-character-string-to-utf8-byte-array - SBCL Commits
Add remark on known bugs - SBCL Commits

8th

neon simd-copy-character-string-to-utf8-byte-array - SBCL Commits
Get rid of a redundant sign-extend in SB-ALIEN:DEREF - SBCL Commits
Reduce register moves in string-to-utf8-byte-array - SBCL Commits
Optimize some instruction sequences - SBCL Commits
Fix out of bound writes in simd-copy-utf8-sap-to-character-string - SBCL Commits
Improve x86-64 simd instruction sequences - SBCL Commits
Off by one in simd-copy-character-string-to-utf8-byte-array-avx2 - SBCL Commits

9th

Out of bounds in simd-copy-character-string-to-utf8-byte-array too - SBCL Commits
Skip an unreliable test - SBCL Commits
arm64: add vector clz cls - SBCL Commits
[2160207] multiple-value-call shitcompilation - Launchpad Bugs
Possibly eliminate 1 or 2 instructions from DEREF of integer arrays - SBCL Commits
mv-bind-unused-p: skip preceding mv-call arguments - SBCL Commits
t - SBCL Commits
Adjust a test for windows - SBCL Commits
Delay decision to use MPH generator program until make-host-2 - SBCL Commits
[2160268] Log(qNaN) throws an error - Launchpad Bugs
arm64: simd encoding of the whole unicode range for C strings - SBCL Commits
Optimize instructions in copy-character-string-to-utf8-byte-array - SBCL Commits

10th

Change SSET to not use tombstones - SBCL Commits
Add test manifest entry - SBCL Commits
[2160376] READ consumes non-delimiting whitespace - Launchpad Bugs
Improve SSET capacity tracking and SSET-ADJOIN - SBCL Commits

11th

[2160413] :overflow-arith fails on 2.6.6+ - Launchpad Bugs
Avoid using avx512 registers in generic routines - SBCL Commits
[2160429] Incorrect type error in type checking on cons type - Launchpad Bugs
source-transform-union-typep: eql complexes are not numeric-types - SBCL Commits

12th

Enable *derive-function-types* in PCL build - SBCL Commits
arm64: better copy-character-string-to-utf8-byte-array - SBCL Commits
arm64: encode prfm - SBCL Commits
Get the encodable ranges right for SAP-REF-{8,16,32} - SBCL Commits

13th

Set *derive-function-types* to T in make-contrib - SBCL Commits
Avoid zillons of lstat() calls from %sbcl-homedir-pathname - SBCL Commits
arm64: encode more vector shift instructions - SBCL Commits

14th

[2160604] Title: DEFSTRUCT with :INCLUDE generates code that evaluates parent structure name as a variable - Launchpad Bugs
Delete work files without pre-testing for existence - SBCL Commits
Move assembly step first in make-host-2 - SBCL Commits
arm64: support byte-array inline constants - SBCL Commits

15th

arm64: simd decoding of the whole unicode range for C strings - SBCL Commits
Micro-optimizations in copy-utf8-sap-to-character-string - SBCL Commits

16th

More optimizations in copy-utf8-sap-to-character-string - SBCL Commits
Replace a MUL with USHL - SBCL Commits
Remove a line of output from genesis - SBCL Commits
Add yet another way to run the parallelized build of cold-sbcl.core - SBCL Commits
[2160747] Compiler error on concatenate call with invalid argument - Launchpad Bugs
Fix a compile-time type error on bad arguments to concatenate - SBCL Commits
Don't fmakunbound functions present in *handled-conditions* - SBCL Commits
Fix arena-related crash - SBCL Commits
arm64: better bit packing in copy-utf8-sap-to-character-string - SBCL Commits

17th

arm64: speed up length calculation in copy-character-string-to-utf8 - SBCL Commits
arm64, utf8-sap-to-character-string: reduce instruction dependencies - SBCL Commits
x86-64: support byte-array inline constants - SBCL Commits
x86-64: simd decoding of the whole unicode range for C strings - SBCL Commits
Improve DO-CONSET-ELEMENTS a little more - SBCL Commits
mips: Implement integer-length vop without looping - SBCL Commits
Revert do-conset-elements to older logic on 3 backends - SBCL Commits
Heed the optional+key style warning - SBCL Commits
build-all-cores - SBCL Commits
Silence a bunch of gcc warnings - SBCL Commits
Add missing feature to arm64 crossbuild test - SBCL Commits

18th

Limit the scope of warning suppressions - SBCL Commits
Add utf8 strlen test - SBCL Commits
Add tests for simd-copy-ascii - SBCL Commits
x86-64: simd encoding of the whole utf8 range for C strings - SBCL Commits
Correct #- - SBCL Commits
Use a memory operand instead of loading into a register - SBCL Commits
Use a memory operand instead of loading into a register, 2 - SBCL Commits
x86-64, utf8-sap-to-string: use a single ymm register for two xmm - SBCL Commits
Restore the ability to use SSETs as CONSETs - SBCL Commits
Don't signal errors for (log qnan) - SBCL Commits

19th

Optimize SSET-DIFFERENCE - SBCL Commits
x86-64, utf8-sap-to-string: remove redundant moves - SBCL Commits
Optimize SSET-INTERSECTION - SBCL Commits

20th

Move instructions around in simd-copy-utf8-sap-to-character-string - SBCL Commits
Improve the early return from SSET-DELETE and -MEMBER - SBCL Commits
add vpsadbw, vpalignr and vpsubusb to sb-simd - SBCL Commits
Avoid type and array bound checks in loops of SSET operations - SBCL Commits

21st

Implement sparse sets having greater storage density than SSET - SBCL Commits
simd-utf8-strlen: add a fast path for 1/2 bytes. - SBCL Commits
Remove "simd-copy-" prefixes from functions - SBCL Commits
Use dword sized registers after vpmovmskb - SBCL Commits
Better addv umov usage - SBCL Commits
dup directly from a vector register - SBCL Commits
arm64, utf8-strlen: unify some parts - SBCL Commits
loongarch: Adhere to architectural spec for amor_db.d instruction - SBCL Commits
arm64: full unicode processing in utf8-to-character-string - SBCL Commits
loongarch: Implement integer-length without a loop - SBCL Commits

22nd

Mark a test as broken - SBCL Commits

23rd

Add documentation changes to NEWS - SBCL Commits
Add a test for utf8-to-character-string - SBCL Commits
Fix a test - SBCL Commits

24th

[2161700] wanted: Replace multiple bit-wise logical operations with just one - Launchpad Bugs
more draft NEWS - SBCL Commits
Typos - SBCL Commits
sb-manual: fix indented code block parsing - SBCL Commits

25th

[2161789] Incorrect value computed (let, m-v-b, if, eql) - Launchpad Bugs
Don't delete blocks during constraint propagation - SBCL Commits

28th

[2161939] The function SB-VM::FASTREM-64 is undefined. - Launchpad Bugs
substitute-single-use-lvar: don't avoid casts for multiple uses - SBCL Commits
2.6.7: will be tagged as "sbcl-2.6.7" - SBCL Commits
arm64: use BIC instead of AND if it can load a smaller constant - SBCL Commits
arm64: try sign-extending when encoding constants for logand - SBCL Commits
arm64: don't translate (dpb x (byte ..) 0) to bfm - SBCL Commits
Better (dpb 0 (byte s 0) x) and (dpb -1 (byte s p) x) - SBCL Commits
arm64: prefer orr + lsl to bfm - SBCL Commits
Exclude 0 from fd-stream-element-size - SBCL Commits
Micro-optimize %LOOKUP-SYMBOL - SBCL Commits
Micro-optimize GET-OUTPUT-STREAM-STRING - SBCL Commits
Detection redefs in genesis for #+linkage-space - SBCL Commits
Grow consets more lazily - SBCL Commits
The cerror in cold-fset works fine - SBCL Commits
Change #-conset-is-sset to #+bitmapped-conset - SBCL Commits
[2162019] ppc64le: warm build fails with FLOATING-POINT-INEXACT in STRING->UTF8 after 246af00 ("Don't signal errors for (log qnan)") - Launchpad Bugs
[2162021] Can't build the manual on linux-x86 - Launchpad Bugs

29th

Encode the remaining bmi1/2 instructions, movbe - SBCL Commits
Clarify a comment - SBCL Commits
Correct the user facing function for vpsubusb instruction - SBCL Commits
Micro-optimize READ-STRING - SBCL Commits
sb-manual: skip undefined things when building the manual - SBCL Commits
Add some failing contification test cases from Fluet and Weeks. - SBCL Commits
Make character-set unparser more useful when cross-compiling - SBCL Commits
Fix failure to choose a jump table for a key type of (MOD 4) - SBCL Commits
Fix test. - SBCL Commits

30th

Fix a test for :interpreter - SBCL Commits
arm64: full unicode decoding in utf8-crlf-to-character-string - SBCL Commits
arm64: off by one in utf8-to-character-string-sized - SBCL Commits
Assignment convert all the things. - SBCL Commits

31st

arm64: simd utf8-crlf-to-character-string-sized - SBCL Commits
arm64, utf8-crlf-to-character-string: exit in time - SBCL Commits
Hack load_core_files by moving a static var - SBCL Commits
Speed up looking in the ctype-list-hash-set - SBCL Commits
[2162597] Control stack exhausted in compiler - Launchpad Bugs
Avoid infinite recursion in remove-moves - SBCL Commits