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[DAG] SDPatternMatch - add m_FShL / m_FShR / m_FShLLike / m_FShRLike matchers

good first issuehttps://github.com/llvm/llvm-project/contributehttps://github.com/llvm/llvm-project/contribute

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open.

#185880 In llvm/llvm-project;

· RKSimon opened on Mar 11, 2026

[clang]Clang rejects reference member initialized by temporary via default member initializer

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

Status: Open.

#185874 In llvm/llvm-project;

· Attacker23 opened on Mar 11, 2026

[Clang] Implementation divergence on uninitialized union

c++

constexprAnything related to constant evaluationAnything related to constant evaluation

diverges-from:gccDoes the clang frontend diverge from gcc on this issueDoes the clang frontend diverge from gcc on this issue

diverges-from:msvcDoes the clang frontend diverge from msvc on this issueDoes the clang frontend diverge from msvc on this issue

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

Status: Open.

#185869 In llvm/llvm-project;

· philnik777 opened on Mar 11, 2026

[LV]VPlan cost model and legacy cost model disagreed assertion

crash-on-valid

vectorizers

Status: Open.

Bug

#185867 In llvm/llvm-project;

· alexey-bataev opened on Mar 11, 2026

[MLIR] Crash in SPIRVEmitIntrinsics::visitStoreInst during --gpu-lower-to-xevm-pipeline

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

mlir

Status: Open.

Bug

#185862 In llvm/llvm-project;

· jiayiw2008 opened on Mar 11, 2026

[AArch64] Illegal ptrue instruction emitted on neoverse-512tvb

backend:AArch64

miscompilation

Status: Open.

Bug

#185860 In llvm/llvm-project;

· artagnon opened on Mar 11, 2026

[libc++] FreeBSD runner needs to be updated

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

Status: Open.

#185854 In llvm/llvm-project;

· philnik777 opened on Mar 11, 2026

[SLP] Assertion `MainOp && "MainOp cannot be nullptr."'

new issue

Status: Open.

#185851 In llvm/llvm-project;

· arcbbb opened on Mar 11, 2026

[Clang] Clang incorrectly accepts volatile volatile; as a statement

accepts-invalid

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

diverges-from:gccDoes the clang frontend diverge from gcc on this issueDoes the clang frontend diverge from gcc on this issue

Status: Open.

#185831 In llvm/llvm-project;

· wangbo15 opened on Mar 11, 2026

Feature request: vector.reduce.fmaximum_num and vector.reduce.fminimum_num

new issue

Status: Open.

#185827 In llvm/llvm-project;

· RalfJung opened on Mar 11, 2026

Request Commit Access For IamYJLee

infra:commit-access-request

Status: Open.

#185824 In llvm/llvm-project;

· IamYJLee opened on Mar 11, 2026

[MLIR] Crash in SPIRVInstructionSelector::selectIntrinsic during --gpu-lower-to-xevm-pipeline

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

mlir

Status: Open.

Bug

#185815 In llvm/llvm-project;

· jiayiw2008 opened on Mar 11, 2026