llvm Good First Issues

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llvm/circt

[Synth] Add a folder/canonicalization for synth.xor_inv

good first issueSynth

llvm/llvm-project

[clang] crashes when multiple ownership_returns attributes are applied to a function

good first issueclang:frontendconfirmed+2

llvm/llvm-project

[Clang] [Sema] Returning an initializer list from a lambda/block that returns `void` is accepted

good first issueclang:frontendaccepts-invalid

llvm/llvm-project

[X86] Incorrect promotion for fneg / fabs half calls at -O0

good first issuellvm:codegen

llvm/llvm-project

-Wdangling-field detects view members initalized from a by-value owner parameter

good first issueclang:temporal-safety

llvm/llvm-project

[DAG] ComputeKnownBits - failure to recognise LSB of ADD(X,X) is 0

good first issuellvm:SelectionDAG

llvm/llvm-project

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

good first issuellvm:SelectionDAG

llvm/llvm-project

[CIR] Upstream handling of AArch64 (Arm) Neon builtins

good first issueClangIR

llvm/llvm-project

[clang] Crash when calling __builtin_allow_sanitize_check() without arguments

good first issueclang:frontendcrash-on-invalid

llvm/llvm-project

[DAG] isKnownNeverZero - add ISD::VECTOR_SHUFFLE handling

good first issuellvm:SelectionDAG

llvm/llvm-project

[DAG] isKnownNeverZero - add ISD::UDIV/SDIV DemandedElts handling and tests

good first issuellvm:SelectionDAG

llvm/llvm-project

DAG] isKnownNeverZero - add computeKnownBits fallback DemandedElts handling and tests

good first issuellvm:SelectionDAG

llvm/llvm-project

[DAG] isKnownNeverZero - add ISD::SMIN/SMAX DemandedElts handling and tests

good first issuellvm:SelectionDAG

llvm/llvm-project

[DAG] isKnownNeverZero - add ISD::OR DemandedElts handling and tests

good first issuellvm:SelectionDAG

llvm/llvm-project

[X86] Add sincos vector lib codegen test coverage

good first issuetest-suitebackend:X86

llvm/llvm-project

[CIR] Incorrect prototype sometimes generated for undeclared variadic functions

good first issueClangIR

llvm/llvm-project

[libc][semaphore] missing semaphore header and syscall wrapper implementation

good first issuelibc

llvm/llvm-project

[X86] computeKnownBitsForTargetNode - add X86ISD::FXOR coverage

good first issuebackend:X86

llvm/llvm-project

[DAG] visitCLMUL - missing basic folds by 1 and pow2

good first issuellvm:SelectionDAG

llvm/llvm-project

[AMDGPU] Invalid sink of ds_load across workgroup fence

good first issuebackend:AMDGPU

llvm/llvm-project

[DAG] isKnownToBeAPowerOfTwo - add ISD::TRUNCATE handling

good first issuellvm:SelectionDAG

llvm/llvm-project

[DAG] isKnownToBeAPowerOfTwo - improve ISD::AND handling

good first issuellvm:SelectionDAG

llvm/llvm-project

[DAG] isKnownToBeAPowerOfTwo - improve ISD::SRL handling

good first issuellvm:SelectionDAG

llvm/llvm-project

[DAG] isKnownToBeAPowerOfTwo - add DemandedElts + OrZero handling to ISD::ZERO_EXTEND cases

good first issuellvm:SelectionDAG

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