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ThreadSanitizer does not work with C11 threads

c11

compiler-rt:tysanType sanitizerType sanitizer

Status: Open.

#199585 In llvm/llvm-project;

· rubiefawn opened on May 26, 2026

[LifetimeSafety] -Wlifetime-safety asserts on variadic placement operator new

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

crash-on-valid

Status: Open.

#199584 In llvm/llvm-project;

· zeyi2 opened on May 26, 2026

[AArch64][COFF] Broken TLS access sequence when private thread_local definitions are mixed with non-private ones

backend:AArch64

miscompilation

platform:windows

Status: Open.

Bug

#199581 In llvm/llvm-project;

· alexrp opened on May 25, 2026

[regression] Clang 22 fails to evaluate fold expression constraints involving variadic concept in C++26 mode

clangClang issues not falling into any other categoryClang issues not falling into any other category

Status: Open.

#199569 In llvm/llvm-project;

· gracicot opened on May 25, 2026

[clangd][clang] Assertion!Batch.empty() fail on codeAction request

clangClang issues not falling into any other categoryClang issues not falling into any other category

Status: Open.

#199566 In llvm/llvm-project;

· hongtaihu opened on May 25, 2026

[clangd] [modules] Creating new module requires rebuild in order to be able to import it

clang:modulesC++20 modules and Clang Header ModulesC++20 modules and Clang Header Modules

clangd

Status: Open.

#199564 In llvm/llvm-project;

· berkaysahiin opened on May 25, 2026

[clang][HIP] -ast-print crashes on AMDGPU builtin call (StmtPrinter.cpp:1502)

clangClang issues not falling into any other categoryClang issues not falling into any other category

Status: Open.

#199563 In llvm/llvm-project;

· hongtaihu opened on May 25, 2026

[flang][OpenMP] Support reduction and in_reduction on taskloop

flangFlang issues not falling into any other categoryFlang issues not falling into any other category

Status: Open.

#199560 In llvm/llvm-project;

· Saieiei opened on May 25, 2026

[AMDGPU] "Interference" assertion in SplitEditor::splitLiveThroughBlock during regalloc

confirmedVerified by a second partyVerified by a second party

crash-on-valid

generated by fuzzer

new issue

Status: Open.

#199554 In llvm/llvm-project;

· hazohelet opened on May 25, 2026

[AMDGPU] "Inconsistent LiveInterval" assertion in LiveIntervalUnion::extract during regalloc

confirmedVerified by a second partyVerified by a second party

crash-on-valid

generated by fuzzer

new issue

Status: Open.

#199553 In llvm/llvm-project;

· hazohelet opened on May 25, 2026

[SLP][AArch64] #187391 regresses benchmark by 23% on Neoverse-N1

llvm:SLPVectorizer

performance

regression

Status: Open.

Bug

#199548 In llvm/llvm-project;

· JanJecmen opened on May 25, 2026

Inconsistent Lowering of COMI intrinsics to VCOMX in presence of AVX10.2

new issue

Status: Open.

#199547 In llvm/llvm-project;

· sayantn opened on May 25, 2026