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[clang] Consider emitting llvm.lifetime.start/llvm.lifetime.end for variables with bypassed initialization

clang:codegenIR generation bugs: mangling, exceptions, etc.IR generation bugs: mangling, exceptions, etc.

missed-optimization

Status: Open.

#199144 In llvm/llvm-project;

· efriedma-quic opened on May 22, 2026

Linux x64 and Windows x64 builders test failures unrelated to my PR

new issue

Status: Open.

#199142 In llvm/llvm-project;

· sujianIBM opened on May 22, 2026

LLVM.CodeGen/PowerPC/fast-isel-cmp-imm.ll does not pass despite my PR being unrelated

infrastructureBugs about LLVM infrastructureBugs about LLVM infrastructure

Status: Open.

#199135 In llvm/llvm-project;

· InakiVA opened on May 21, 2026

[clang-cl][MSVC ABI] Vtable slot points to 1-byte NOP stub instead of out-of-class template override when base is dllimport and declaration omits virtual/override

new issue

Status: Open.

#199115 In llvm/llvm-project;

· ViNN280801 opened on May 21, 2026

AArch64 and Windows Builders Failure Unrelated to

infrastructureBugs about LLVM infrastructureBugs about LLVM infrastructure

Status: Open.

#199099 In llvm/llvm-project;

· fhossein-quic opened on May 21, 2026

InstCombine bitwise AND with range comparison generates a huge constant.

backend:X86

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

missed-optimization

Status: Open.

#199095 In llvm/llvm-project;

· ruriww opened on May 21, 2026

[flang][OpenMP] Imperfectly nested loops with COLLAPSE are rejected

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

flang:openmp

Status: Open.

#199092 In llvm/llvm-project;

· cenewcombe opened on May 21, 2026

[lld] Cortex-53 843419 Erratum thunks cannot safely use a long-range branch extension thunk

lld

Status: Open.

#199080 In llvm/llvm-project;

· smithp35 opened on May 21, 2026

[clang-format][Objective-C] clang-format fail on Assertion FormatTok->isOneOf(tok::l_paren, tok::identifier) && "'(' or identifier expected."' failed.

clang-format

confirmedVerified by a second partyVerified by a second party

Status: Open.

Bug

#199075 In llvm/llvm-project;

· hongtaihu opened on May 21, 2026

[Flang] flang throws floating point exception incorrectly within subprogram

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

Status: Open.

#199071 In llvm/llvm-project;

· shivaramaarao opened on May 21, 2026

[Matrix] Add splitdouble support to matrices

new issue

Status: Open.

#199069 In llvm/llvm-project;

· joaosaffran opened on May 21, 2026

Request Commit Access For tigbr

infra:commit-access-request

Status: Open.

#199068 In llvm/llvm-project;

· tigbr opened on May 21, 2026