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cmd/compile: increased compilation time for a parser package generated with goyacc

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.

ToolSpeed

Status: Open.

#77011 In golang/go;

· yuzefovich opened on Dec 27, 2025

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Backlog

cmd/compile: <code>sccp</code> spends a lot of it's time optimizing deadcode

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

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.

ToolSpeed

Status: Open.

#76054 In golang/go;

· Jorropo opened on Oct 25, 2025

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Backlog

cmd/compile: ccxt oom killed on compilation

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.

ToolSpeed

Status: Open.

#73365 In golang/go;

· carlosmiei opened on Apr 14, 2025

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Backlog

cmd/compile: consider speeding up compile of large ast package in microsoft/typescript-go

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

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.

ToolSpeed

Status: Open.

#73044 In golang/go;

· thepudds opened on Mar 25, 2025

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Backlog

x/build: improve LUCI builder test sharding strategy for the main Go repository

Buildersx/build issues (builders, bots, dashboards)x/build issues (builders, bots, dashboards)

NeedsFixThe path to resolution is known, but the work has not been done.The path to resolution is known, but the work has not been done.

ToolSpeed

Status: Open.

#65814 In golang/go;

· mknyszek opened on Feb 20, 2024

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Unreleased

cmd/api: test particularly slow in wsl2

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.

ToolSpeed

Status: Open.

#65670 In golang/go;

· qiulaidongfeng opened on Feb 12, 2024

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Unplanned

cmd/compile: generics add significant build time and build size overhead

binary-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.

ToolSpeed

Status: Open.

#65605 In golang/go;

· xaurx opened on Feb 8, 2024

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Backlog

cmd/compile: exponential behavior for deeply nested structs

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

NeedsFixThe path to resolution is known, but the work has not been done.The path to resolution is known, but the work has not been done.

ToolSpeed

Status: Open.

#65540 In golang/go;

· randall77 opened on Feb 6, 2024

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Backlog

internal/fuzz,cmd/go: fuzz coordinator quickly runs out of address space on linux/386

fuzzIssues related to native fuzzing supportIssues related to native fuzzing support

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.

ToolSpeed

Status: Open.

#65434 In golang/go;

· bcmills opened on Feb 1, 2024

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Backlog

cmd/go: don't compile native code(c, c++) to objects when running go command in list and vet mode

GoCommandcmd/gocmd/go

goplsIssues related to the Go language server, gopls.Issues related to the Go language server, gopls.

ToolSpeed

Status: Open.

#62362 In golang/go;

· zhuah opened on Aug 30, 2023

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Unplanned

cmd/go/internal/test: default pgo=auto results in surprising slow behaviour

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

GoCommandcmd/gocmd/go

NeedsFixThe path to resolution is known, but the work has not been done.The path to resolution is known, but the work has not been done.

ToolSpeed

Status: Open.

#61983 In golang/go;

· lizthegrey opened on Aug 12, 2023

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Backlog

cmd/go: decouple cmd/cover action from build action for "go {build,test} -cover"

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

GoCommandcmd/gocmd/go

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.

ToolSpeed

Status: Open.

#60006 In golang/go;

· thanm opened on May 5, 2023

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Backlog