Application Binary Interface

accepts-invalid

awaiting-review

Has pending Phabricator review

backend:AArch64

backend:DirectX

backend:Hexagon

backend:loongarch

backend:PowerPC

backend:SystemZ

backend:WebAssembly

backend:X86 Scheduler Models

Accuracy of X86 scheduler models

"Peripheral" support tier build system: utils/bazel

Indicates an unexpected problem or unintended behavior

Issues migrated from bugzilla

Request for a new check in clang-tidy

Issues related to std::chrono

clang:as-a-library

libclang and C++ API

clang:bounds-safety

Issue/PR relating to the experimental -fbounds-safety feature in Clang

Clang Dataflow Analysis framework - https://clang.llvm.org/docs/DataFlowAnalysisIntro.html

clang:diagnostics

New/improved warning or error message in Clang, but not in clang-tidy or static analyzer

'clang' and 'clang++' user-facing binaries. Not 'clang-cl'

clang:frontend:fuzzer

Language frontend issues, e.g. anything involving "Sema"

Headers provided by Clang, e.g. for intrinsics

clang:memory-safety

Issue/FR relating to the lifetime analysis in Clang (-Wdangling, -Wreturn-local-addr)

C++20 modules and Clang Header Modules

Clang OpenACC Implementation

OpenMP related changes to Clang

Precompiled headers

Clang Plugin interface

clang:static analyzer

clang:to-be-triaged

Should not be used for new issues

Clang issues not falling into any other category

`clang-cl` driver. Don't use for other compiler parts

clang-include-cleaner

clang-tools-extra

Anything related to the ClangIR project

Build system in general and CMake in particular

Use [accepts-invalid] and [rejects-valid] instead

compiler-rt:asan

Address sanitizer

compiler-rt:builtins

compiler-rt:cfi

Control Flow Integrity

compiler-rt:fuzzer

compiler-rt:hwasan

Hardware-assisted address sanitizer

compiler-rt:lsan

compiler-rt:memprof

compiler-rt:msan

Memory sanitizer

compiler-rt:nsan

Numerical stability sanitizer

compiler-rt:rtsan

Realtime sanitizer

compiler-rt:sanitizer

compiler-rt:scudo

Scudo Hardened Allocator

compiler-rt:tsan

Thread sanitizer

compiler-rt:tysan

compiler-rt:ubsan

Undefined behavior sanitizer

Verified by a second party

constant-folding

Problems related to constant folding in the optimizer

C++20 consteval

Anything related to constant evaluation

C++20 coroutines

Prefer [crash-on-valid] or [crash-on-invalid]

crash-on-invalid

An issue that was filed to the Core Working Group

Issues representing WG21 papers to be applied as a defect report

Bugs or requests for LLVM Discourse

diverges-from:edg

Does the clang frontend diverge from edg compiler

diverges-from:gcc

Does the clang frontend diverge from gcc on this issue

diverges-from:msvc

Does the clang frontend diverge from msvc on this issue

Resolved as duplicate

Support for embedded development

Improving things as opposed to bug fixing, e.g. new or missing feature

exception-safety

extension:borland

extension:clang

extension:microsoft

Warning fires when it should not

C++17 std::filesystem

Build bot flakes

flang:fir-hlfir

flang:hlfir-switch

Issues blocking Flang from switching to HLFIR lowering

flang:semantics

Flang issues not falling into any other category

Floating-point math

C++20 std::format or std::print, and anything related to them

function-specialization

github:security

github:workflow

good first issue

https://github.com/llvm/llvm-project/contribute

Google Summer of Code

Compiler hang (infinite loop)

Issues related to the hardening effort

Indicates that a maintainer wants help. Not [good first issue].

HLSL Language Support

Issue not complete (e.g. missing a reproducer, build arguments, etc.)

infra:commit-access

infra:commit-access-request

Bugs about LLVM infrastructure

Resolved as invalid, i.e. not a bug

invalid-code-generation

Tool (e.g. clang-format) produced invalid code that no longer compiles

Interprocedural analysis

Interprocedural optimizations

C++11 lambda expressions

This issue pertains to the Library Fundamentals TS v2

libc++abi C++ Runtime Library. Not libc++.

libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

libclc OpenCL library

libcxx-disable-testing

Disables the automatic running of the libc++ test suite.

GNU libstdc++ C++ standard library

llvm:as-a-library

LLVM-C and C++ API

llvm::Attributor

llvm:binary-utilities

Code size issues

llvm:globalisel

GVN and NewGVN stages (Global value numbering)

Compiler hang (infinite loop)

llvm:instcombine

llvm:openmpirbuilder

Issues related to problems in the llvm-project/lib/Frontend/OpenMP/OMPIRBuilder.cpp

llvm:optimizations

Scalar Evolution

llvm:SelectionDAG

SelectionDAGISel as well

llvm:SLPVectorizer

llvm:transforms

Umbrella label for LLVM issues

All llvm tools that do not have corresponding tag

LLVM Nightly Testing

issues related to localization

Link time optimization (regular/full LTO or ThinLTO)

this is an issue that was filed to the Library Working Group

Machine (object) code

Issue to collect references to a group of similar or related issues.

machine instruction scheduler

miscompilation:undef

Miscompilation that only occurs with undef values

missed-devirtualization

missed-optimization

mlir:bufferization

Bufferization infrastructure

MLIR complex dialect

MLIR Core Infrastructure

mlir:execution-engine

MLIR func dialect

Issues for the Mesh Dialect

mlir:presburger

MLIR Python bindings

Sparse compiler in MLIR

mlir:transform_dialect

needs-reduction

Large reproducer that should be reduced into a simpler form

Issues with old (unsupported) versions of LLVM

opaque-pointers

OpenMP host runtime

openmp:libomptarget

OpenMP offload runtime

optimization-remarks

orc-mcjit-regression

This issue represents a regression from MCJIT.

Profile Guided Optimizations

Related to migration from Phabricator

platform:android

platform:freebsd

iOS-related issues

platform:netbsd

platform:openbsd

platform:solaris

platform:windows

potentially good for outreach

Consider this issue as a good first issue for someone that has spoken to an experienced LLVM dev

Issues related to the C++17 Parallel STL

quality-of-implementation

A question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!

Issues related to `<ranges>`

Issues related to regex

Regression in 13 release

Regression in clang 14 release

Regression in 15 release

Regression in 16 release

Regression in 17 release

Regression in clang 18 release

Regression in 19 release

release:backport

release:cherry-pick-failed

release:fixed-in-main

release:reviewed

skip-precommit-approval

PR for CI feedback, not intended for review

issues related to <=>

SPIR-V language support

ARM Scalable Vector Extensions

https://registry.khronos.org/SYCL

Type-Based Alias Analysis / Strict Aliasing

third-party:benchmark

third-party:unittests

Imported from upstream GoogleTest project

issues related to threading

tools:llvm-ar/llvm-ranlib

tools:llvm-c++filt

tools:llvm-cxxfilt

tools:llvm-debuginfo-analyzer

tools:llvm-dwarfdump

tools:llvm-exegesis

tools:llvm-link

tools:llvm-objcopy/strip

tools:llvm-objdump

tools:llvm-readobj/readelf

tools:llvm-size

tools:llvm-strings

tools:llvm-symbolizer/addr2line

tools:llvm-symbolizer

undefined behaviour

waiting-for-response

waiting-for-wg21

Blocked on C++ Standards Committee

Issues representing the implementation of a WG21 paper

Issue is real, but we can't or won't fix it. Not invalid

Resolved as "works for me"

No labels found. Sorry about that.