Search results

net/http: <code>remoteEmptyPort</code> could be optimized

FixPendingIssues that have a fix which has not yet been reviewed or submitted.Issues that have a fix which has not yet been reviewed or submitted.

ImplementationIssues describing a semantics-preserving change to the Go implementation.Issues describing a semantics-preserving change to the Go implementation.

Performance

Status: Open.

#76651 In golang/go;

· dxasu opened on Dec 2, 2025

· 

Backlog

cmd/compile: optimize back-to-back append calls

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

FeatureRequestIssues asking for a new feature that does not need a proposal.Issues asking for a new feature that does not need a proposal.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76631 In golang/go;

· dsnet opened on Nov 29, 2025

· 

Backlog

cmd/compile: no BCE due to missing limits when comparing against len with delta=0

BugReportIssues describing a possible bug in the Go implementation.Issues describing a possible bug in the Go implementation.

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

help wanted

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

Feature

#76429 In golang/go;

· fice-t opened on Nov 24, 2025

· 

Unplanned

cmd/compile: inliner loses optimizations (and has different optimizations) for constant string args

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76372 In golang/go;

· fice-t opened on Nov 20, 2025

· 

Unplanned

cmd/compile: extra bounds check when accessing string using index from range over its runes

BugReportIssues describing a possible bug in the Go implementation.Issues describing a possible bug in the Go implementation.

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

help wanted

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76354 In golang/go;

· fice-t opened on Nov 19, 2025

· 

Unplanned

cmd/compile: prove only notices one of a pair of induction variables (missed optimization)

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76269 In golang/go;

· dr2chase opened on Nov 11, 2025

· 

Unplanned

internal/runtime/maps: hash copy of key instead of key itself makes map run slowly

BugReportIssues describing a possible bug in the Go implementation.Issues describing a possible bug in the Go implementation.

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76083 In golang/go;

· spy20051623 opened on Oct 28, 2025

· 

Unplanned

cmd/compile: exploit disjoint live ranges to reduce frame size

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76073 In golang/go;

· adonovan opened on Oct 27, 2025

· 

Unplanned

cmd/compile: on <code>AMD64</code> slow instruction sequence to Zext a &lt; register size instruction output

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

FeatureRequestIssues asking for a new feature that does not need a proposal.Issues asking for a new feature that does not need a proposal.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76066 In golang/go;

· Jorropo opened on Oct 27, 2025

· 

Unplanned

crypto/cipher: AES CTR optimizations

ImplementationIssues describing a semantics-preserving change to the Go implementation.Issues describing a semantics-preserving change to the Go implementation.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76061 In golang/go;

· starius opened on Oct 26, 2025

· 

Backlog

cmd/compile: amd64 <code>CMOV*</code> lowering rules depend on the values schedule

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76060 In golang/go;

· Jorropo opened on Oct 26, 2025

· 

Unplanned

cmd/compile: optimize conditional subtractions

compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

FeatureRequestIssues asking for a new feature that does not need a proposal.Issues asking for a new feature that does not need a proposal.

NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

Performance

Status: Open.

#76056 In golang/go;

· FiloSottile opened on Oct 26, 2025

· 

Unplanned