Planet SBCL

September 20, 2026

SBCL Commits — tagged-template-p: ignore VOPs that accept fixnums and signed-regs

tagged-template-p: ignore VOPs that accept fixnums and signed-regs
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SBCL Commits — Add :related-args to %dpb

Add :related-args to %dpb
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SBCL Commits — select-tagging: don't connect the amount in (ash x amount) to x

select-tagging: don't connect the amount in (ash x amount) to x
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SBCL Commits — More portable use of LOOP

More portable use of LOOP
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SBCL Commits — arm, arm64: fix local calls returning arguments in NFP

arm, arm64: fix local calls returning arguments in NFP
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SBCL Commits — arm32: allow running with 64K pages

arm32: allow running with 64K pages
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SBCL Commits — Prefer untagged VOPs if the values don't need to be tagged

Prefer untagged VOPs if the values don't need to be tagged
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September 18, 2026

SBCL Commits — x86-64: fix *-MOD64 VOPs

x86-64: fix *-MOD64 VOPs
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Launchpad Bugs — [2167736] can't tell the size of #<SB-C:TN '1!1 :CONSTANT>

Affects Status Importance Assigned to Bug watch
sbcl Fix Released Undecided -
 

SBCL Commits — ir1-optimize-return: set node-derived-type to a values-type

ir1-optimize-return: set node-derived-type to a values-type
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Launchpad Bugs — [2167725] The value #<SB-KERNEL:BUILT-IN-CLASSOID FUNCTION (read-only)> is not of type SB-KERNEL:ARGS-TYPE

Affects Status Importance Assigned to Bug watch
sbcl Fix Committed Undecided -
 

SBCL Commits — sb-manual: add some documentation for LDB

sb-manual: add some documentation for LDB
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SBCL Commits — Fix ltn-analyze-if where move-conditional-result is present (arm64)

Fix ltn-analyze-if where move-conditional-result is present (arm64)
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SBCL Commits — ltn-analyze-if: don't redo immediately-used-p

ltn-analyze-if: don't redo immediately-used-p
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September 17, 2026

SBCL Commits — Off by one in mv-principal-lvar-ref-use

Off by one in mv-principal-lvar-ref-use
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SBCL Commits — Save a move, sometimes

Save a move, sometimes
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Launchpad Bugs — [2167568] The value NIL is not of type SB-C::LVAR

Affects Status Importance Assigned to Bug watch
sbcl Fix Committed Undecided -
 

September 16, 2026

SBCL Commits — Add a :to :save just in case

Add a :to :save just in case
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SBCL Commits — ir1-finalize-nodes: leave mismatching cast values alone

ir1-finalize-nodes: leave mismatching cast values alone
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SBCL Commits — Accept any-reg tags for THROW everywhere

Accept any-reg tags for THROW everywhere
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SBCL Commits — arm64: accept any-reg tags for THROW

arm64: accept any-reg tags for THROW
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SBCL Commits — Try not to confuse stack-analyze even more

Try not to confuse stack-analyze even more
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SBCL Commits — Try to not confuse stack-analyze in ir1-finalize-nodes

Try to not confuse stack-analyze in ir1-finalize-nodes
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SBCL Commits — recognize-known-call: the leaf may have no name

recognize-known-call: the leaf may have no name
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SBCL Commits — recognize-known-call: there may be no leaf

recognize-known-call: there may be no leaf
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SBCL Commits — Don't cut logxor constants if they don't change the width

Don't cut logxor constants if they don't change the width
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SBCL Commits — Don't do delete-lvar-use too late

Don't do delete-lvar-use too late
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SBCL Commits — x86-64: can't use MOVE with :dword and expect it to not get removed

x86-64: can't use MOVE with :dword and expect it to not get removed
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Launchpad Bugs — [2167419] failed AVER: (SUBSETP LIVE STACK)

Affects Status Importance Assigned to Bug watch
sbcl Fix Released Undecided -
 

Launchpad Bugs — [2167412] Infinite loop in compiler

Affects Status Importance Assigned to Bug watch
sbcl Fix Released Undecided -
 

Last updated: September 20, 2026 06:58 AM