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Possible optimization memory issue, crasher_2026-04-03_4e72

bugSomething isn't working or is incorrectSomething isn't working or is incorrect

optimizerRelated to IR optimization or analysisRelated to IR optimization or analysis

Status: Open.

#4044 In google/xls;

· mikex-oss opened on Apr 3, 2026

[Proposal] Add Matrix Multiplication (MatMul) as a Tensor-Level Abstraction in XLS IR

Status: Open.

#3983 In google/xls;

· Waleed99i opened on Mar 23, 2026

distribution should include typecheck_main

buildRelated to build flow, build system, or build macrosRelated to build flow, build system, or build macros

🧑‍🌾 gardenerTo be handed off to the next build gardenerTo be handed off to the next build gardener

Status: Open.

#3976 In google/xls;

· proppy opened on Mar 20, 2026

dslx parse error on expressions with inline for

bugSomething isn't working or is incorrectSomething isn't working or is incorrect

dslxDSLX (domain specific language) implementation / front-endDSLX (domain specific language) implementation / front-end

Status: Open.

Bug

#3967 In google/xls;

· proppy opened on Mar 19, 2026

[enhancement] dslx should support empty for loops

dslxDSLX (domain specific language) implementation / front-endDSLX (domain specific language) implementation / front-end

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#3965 In google/xls;

· proppy opened on Mar 19, 2026

reassociation pass is somewhat fragile about what concat/bitslice operations it can see through

Status: Open.

#3952 In google/xls;

· allight opened on Mar 16, 2026

Stop using Module::FindNode() or change TIv2 to ensure fabricated nodes never collide by span with source nodes.

Status: Open.

#3930 In google/xls;

· richmckeever opened on Mar 9, 2026

Remove v1-specific error assertions in typecheck_module_test, and improve corresponding v2 errors where desired.

Status: Open.

#3929 In google/xls;

· richmckeever opened on Mar 9, 2026

[codegen] codegen_main crashes on procs with multi-token carried state

Status: Open.

#3928 In google/xls;

· cdleary opened on Mar 8, 2026

[enhancement] Disambiguate whether configured_value_or is intended to be a global declaration or usage

dslxDSLX (domain specific language) implementation / front-endDSLX (domain specific language) implementation / front-end

enhancementNew feature or requestNew feature or request

Status: Open.

#3922 In google/xls;

· mikex-oss opened on Mar 7, 2026

[enhancement] potential combinational cycles should be flagged at the DSLX level

dslxDSLX (domain specific language) implementation / front-endDSLX (domain specific language) implementation / front-end

enhancementNew feature or requestNew feature or request

schedulerScheduling algorithm for XLS IR operationsScheduling algorithm for XLS IR operations

Status: Open.

Feature

#3900 In google/xls;

· proppy opened on Mar 2, 2026

Can we avoid changing XLS module port source to _source?

Status: Open.

#3888 In google/xls;

· dank-openai opened on Feb 25, 2026