llvm/llvm-project Issues | Good First Issue

Stars: (26,378 stars)
Forks: (10,782 forks)
Indexed issues: (250 indexed issues)
open beginner issues: (218 open beginner issues)
Latest indexed: Jun 6, 2026
Last GitHub push: Jun 10, 2024
License: Other
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: C++
PR merge metrics: (Avg merge 1d 2h) (1,000 merged PRs in 30d)
Beginner labels: good first issuehelp wanted

Loading repository issues...

Issues

220 open indexed issues

Open

Specific structure name can cause shadowing of globally defined lambda, causing "struct::operator()" to be called instead of "lambda::operator()"

c++clang:frontendgood first issuelambda

llvm/llvm-project #134,049 opened Apr 2, 2025 · C++ · 26,378 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

24 comments0 reactions0 assignees

Open

MetaRenamer command line options should be replaced with pass parameters

good first issuellvm:transforms

llvm/llvm-project #133,875 opened Apr 1, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[libc] Clean up copt naming

good first issuelibc

llvm/llvm-project #133,505 opened Mar 28, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

[clang++] operator==(vector of long, vector of long) -> vector of long long

ABIclang:frontenddiverges-from:gccgood first issue

llvm/llvm-project #132,604 opened Mar 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

22 comments0 reactions1 assignee

Open

AMDGPU GlobalISel fails on select of G_UBSANTRAP

backend:AMDGPUgood first issuellvm:globalisel

llvm/llvm-project #131,740 opened Mar 18, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

5 comments0 reactions1 assignee

Open

AMDGPU should handle SimplifyDemandedVectorElts for more trivial intrinsics

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #131,734 opened Mar 18, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Open

Auto-vectorize saturating addition

good first issuellvm:transformsmissed-optimization

llvm/llvm-project #131,601 opened Mar 17, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

10 comments0 reactions1 assignee

Open

Failure to recognise unnecessary sext for add+cmp

good first issuellvm:instcombinemissed-optimization

llvm/llvm-project #130,088 opened Mar 6, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

23 comments0 reactions1 assignee

Open

Improve `llvm.ucmp.iN.i1` codegen (specifically the 1-bit inputs case)

good first issuellvm:SelectionDAGmissed-optimization

llvm/llvm-project #129,401 opened Mar 1, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

10 comments1 reaction1 assignee

Open

Implement fixed point fxdivi functions in llvm-libc

good first issuelibc

llvm/llvm-project #129,126 opened Feb 27, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

18 comments0 reactions1 assignee

Open

Implement fixed point mulifx functions in llvm-libc

good first issuelibc

llvm/llvm-project #129,123 opened Feb 27, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

11 comments0 reactions1 assignee

Open

AMDGPU is missing simplify demanded bits optimizations of readfirstlane and similar operations

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #128,390 opened Feb 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

17 comments0 reactions3 assignees

Open

GlobalISel should have G_POISON

good first issuellvm:globalisel

llvm/llvm-project #127,486 opened Feb 17, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

AMDGPU: can optimize away v_readfirstlane_b32 on implicit_def input

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #125,950 opened Feb 5, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[llvm-mca][FeatureRequest] In timeline graph, note source of delay for each instruction

enhancementgood first issuetools:llvm-mca

llvm/llvm-project #123,756 opened Jan 21, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

18 comments1 reaction1 assignee

Open

Audit/Update `select` uses in DiagnosticXKinds.td to use `enum_select`.

clang:diagnosticsgood first issuequality-of-implementation

llvm/llvm-project #123,121 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Open

Add a `--verbose` option for `llvm-strip`

enhancementgood first issuetools:llvm-objcopy/strip

llvm/llvm-project #123,041 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

13 comments0 reactions1 assignee

Open

missing parenthesis for function-like macro invocation could have better diagnostic

clang:diagnosticsgood first issue

llvm/llvm-project #123,038 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

llvm/lib/CodeGen/LiveRangeUtils.h:40: Iterators applied to wrong data structure ?

code-qualitygood first issuellvm:codegen

llvm/llvm-project #122,937 opened Jan 14, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions2 assignees

Open

Take advantage of `assume`s on `x * x` (with `nuw`)

good first issuellvm:optimizationsmissed-optimization

llvm/llvm-project #122,412 opened Jan 10, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Stars: (26,378 stars)
Forks: (10,782 forks)
Indexed issues: (250 indexed issues)
open beginner issues: (218 open beginner issues)
Latest indexed: Jun 6, 2026
Last GitHub push: Jun 10, 2024
License: Other
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: C++
PR merge metrics: (Avg merge 1d 2h) (1,000 merged PRs in 30d)
Beginner labels: good first issuehelp wanted

Issues

220 open indexed issues

RSS Atom

Open

Specific structure name can cause shadowing of globally defined lambda, causing "struct::operator()" to be called instead of "lambda::operator()"

c++clang:frontendgood first issuelambda

llvm/llvm-project #134,049 opened Apr 2, 2025 · C++ · 26,378 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

24 comments0 reactions0 assignees

Open

MetaRenamer command line options should be replaced with pass parameters

good first issuellvm:transforms

llvm/llvm-project #133,875 opened Apr 1, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[libc] Clean up copt naming

good first issuelibc

llvm/llvm-project #133,505 opened Mar 28, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

[clang++] operator==(vector of long, vector of long) -> vector of long long

ABIclang:frontenddiverges-from:gccgood first issue

llvm/llvm-project #132,604 opened Mar 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

22 comments0 reactions1 assignee

Open

AMDGPU GlobalISel fails on select of G_UBSANTRAP

backend:AMDGPUgood first issuellvm:globalisel

llvm/llvm-project #131,740 opened Mar 18, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

5 comments0 reactions1 assignee

Open

AMDGPU should handle SimplifyDemandedVectorElts for more trivial intrinsics

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #131,734 opened Mar 18, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Open

Auto-vectorize saturating addition

good first issuellvm:transformsmissed-optimization

llvm/llvm-project #131,601 opened Mar 17, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

10 comments0 reactions1 assignee

Open

Failure to recognise unnecessary sext for add+cmp

good first issuellvm:instcombinemissed-optimization

llvm/llvm-project #130,088 opened Mar 6, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

23 comments0 reactions1 assignee

Open

Improve `llvm.ucmp.iN.i1` codegen (specifically the 1-bit inputs case)

good first issuellvm:SelectionDAGmissed-optimization

llvm/llvm-project #129,401 opened Mar 1, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

10 comments1 reaction1 assignee

Open

Implement fixed point fxdivi functions in llvm-libc

good first issuelibc

llvm/llvm-project #129,126 opened Feb 27, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

18 comments0 reactions1 assignee

Open

Implement fixed point mulifx functions in llvm-libc

good first issuelibc

llvm/llvm-project #129,123 opened Feb 27, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

11 comments0 reactions1 assignee

Open

AMDGPU is missing simplify demanded bits optimizations of readfirstlane and similar operations

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #128,390 opened Feb 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

17 comments0 reactions3 assignees

Open

GlobalISel should have G_POISON

good first issuellvm:globalisel

llvm/llvm-project #127,486 opened Feb 17, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

AMDGPU: can optimize away v_readfirstlane_b32 on implicit_def input

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #125,950 opened Feb 5, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[llvm-mca][FeatureRequest] In timeline graph, note source of delay for each instruction

enhancementgood first issuetools:llvm-mca

llvm/llvm-project #123,756 opened Jan 21, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

18 comments1 reaction1 assignee

Open

Audit/Update `select` uses in DiagnosticXKinds.td to use `enum_select`.

clang:diagnosticsgood first issuequality-of-implementation

llvm/llvm-project #123,121 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Open

Add a `--verbose` option for `llvm-strip`

enhancementgood first issuetools:llvm-objcopy/strip

llvm/llvm-project #123,041 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

13 comments0 reactions1 assignee

Open

missing parenthesis for function-like macro invocation could have better diagnostic

clang:diagnosticsgood first issue

llvm/llvm-project #123,038 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

llvm/lib/CodeGen/LiveRangeUtils.h:40: Iterators applied to wrong data structure ?

code-qualitygood first issuellvm:codegen

llvm/llvm-project #122,937 opened Jan 14, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions2 assignees

Open

Take advantage of `assume`s on `x * x` (with `nuw`)

good first issuellvm:optimizationsmissed-optimization

llvm/llvm-project #122,412 opened Jan 10, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Stars: (26,378 stars)
Forks: (10,782 forks)
Indexed issues: (250 indexed issues)
open beginner issues: (218 open beginner issues)
Latest indexed: Jun 6, 2026
Last GitHub push: Jun 10, 2024
License: Other
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: C++
PR merge metrics: (Avg merge 1d 2h) (1,000 merged PRs in 30d)
Beginner labels: good first issuehelp wanted

Loading repository issues...

Issues

220 open indexed issues

RSS Atom

Open

Specific structure name can cause shadowing of globally defined lambda, causing "struct::operator()" to be called instead of "lambda::operator()"

c++clang:frontendgood first issuelambda

llvm/llvm-project #134,049 opened Apr 2, 2025 · C++ · 26,378 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

24 comments0 reactions0 assignees

Open

MetaRenamer command line options should be replaced with pass parameters

good first issuellvm:transforms

llvm/llvm-project #133,875 opened Apr 1, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[libc] Clean up copt naming

good first issuelibc

llvm/llvm-project #133,505 opened Mar 28, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

[clang++] operator==(vector of long, vector of long) -> vector of long long

ABIclang:frontenddiverges-from:gccgood first issue

llvm/llvm-project #132,604 opened Mar 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

22 comments0 reactions1 assignee

Open

AMDGPU GlobalISel fails on select of G_UBSANTRAP

backend:AMDGPUgood first issuellvm:globalisel

llvm/llvm-project #131,740 opened Mar 18, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

5 comments0 reactions1 assignee

Open

AMDGPU should handle SimplifyDemandedVectorElts for more trivial intrinsics

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #131,734 opened Mar 18, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Open

Auto-vectorize saturating addition

good first issuellvm:transformsmissed-optimization

llvm/llvm-project #131,601 opened Mar 17, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

10 comments0 reactions1 assignee

Open

Failure to recognise unnecessary sext for add+cmp

good first issuellvm:instcombinemissed-optimization

llvm/llvm-project #130,088 opened Mar 6, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

23 comments0 reactions1 assignee

Open

Improve `llvm.ucmp.iN.i1` codegen (specifically the 1-bit inputs case)

good first issuellvm:SelectionDAGmissed-optimization

llvm/llvm-project #129,401 opened Mar 1, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

10 comments1 reaction1 assignee

Open

Implement fixed point fxdivi functions in llvm-libc

good first issuelibc

llvm/llvm-project #129,126 opened Feb 27, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

18 comments0 reactions1 assignee

Open

Implement fixed point mulifx functions in llvm-libc

good first issuelibc

llvm/llvm-project #129,123 opened Feb 27, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

11 comments0 reactions1 assignee

Open

AMDGPU is missing simplify demanded bits optimizations of readfirstlane and similar operations

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #128,390 opened Feb 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

17 comments0 reactions3 assignees

Open

GlobalISel should have G_POISON

good first issuellvm:globalisel

llvm/llvm-project #127,486 opened Feb 17, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

AMDGPU: can optimize away v_readfirstlane_b32 on implicit_def input

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #125,950 opened Feb 5, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[llvm-mca][FeatureRequest] In timeline graph, note source of delay for each instruction

enhancementgood first issuetools:llvm-mca

llvm/llvm-project #123,756 opened Jan 21, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

18 comments1 reaction1 assignee

Open

Audit/Update `select` uses in DiagnosticXKinds.td to use `enum_select`.

clang:diagnosticsgood first issuequality-of-implementation

llvm/llvm-project #123,121 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

Open

Add a `--verbose` option for `llvm-strip`

enhancementgood first issuetools:llvm-objcopy/strip

llvm/llvm-project #123,041 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

13 comments0 reactions1 assignee

Open

missing parenthesis for function-like macro invocation could have better diagnostic

clang:diagnosticsgood first issue

llvm/llvm-project #123,038 opened Jan 15, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

llvm/lib/CodeGen/LiveRangeUtils.h:40: Iterators applied to wrong data structure ?

code-qualitygood first issuellvm:codegen

llvm/llvm-project #122,937 opened Jan 14, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions2 assignees

Open

Take advantage of `assume`s on `x * x` (with `nuw`)

good first issuellvm:optimizationsmissed-optimization

llvm/llvm-project #122,412 opened Jan 10, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

9 comments0 reactions1 assignee

llvm/llvm-project

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llvm/llvm-project

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llvm/llvm-project

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