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[SDAG]Assertion `isSimple() && "Expected a SimpleValueType!"' failed.

backend:X86

crash-on-valid

llvm:codegen

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open.

Bug

#178410 In llvm/llvm-project;

· alexey-bataev opened on Jan 28, 2026

Detection of out-of-process JIT support takes non-trivial time on each lit invocation

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

Status: Open.

#178407 In llvm/llvm-project;

· Endilll opened on Jan 28, 2026

[SLP] Handle zext(i1 -> i32) and select(i1, i32 1, i32 0) equivalency

llvm:SLPVectorizer

missed-optimization

Status: Open.

#178403 In llvm/llvm-project;

· RKSimon opened on Jan 28, 2026

Request Commit Access For steffenlarsen

infra:commit-access-request

Status: Open.

#178402 In llvm/llvm-project;

· steffenlarsen opened on Jan 28, 2026

[Flang][OpenMP] Missing diagnostic for INTENT(IN) POINTER in LASTPRIVATE clause

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

Status: Open.

#178398 In llvm/llvm-project;

· Saieiei opened on Jan 28, 2026

wcast-function-type warning may be too strict for conversions between pointer and integer types of same width

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

undefined behaviour

Status: Open.

#178388 In llvm/llvm-project;

· jiangxuezhi opened on Jan 28, 2026

[LLVM] Build error when linking static Z3 library

build-problem

Status: Open.

#178380 In llvm/llvm-project;

· Tomahawkd opened on Jan 28, 2026

mlir-opt crashes with UNREACHABLE in linalg.elementwise when operands have vector types

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

generated by fuzzer

mlir:linalg

Status: Open.

Bug

#178363 In llvm/llvm-project;

· compilerStudyer opened on Jan 28, 2026

mlir-opt crashes with assertion failure in ShapedType::getNumElements when parsing memref.global with very large static shape

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

generated by fuzzer

mlir

Status: Open.

Bug

#178362 In llvm/llvm-project;

· compilerStudyer opened on Jan 28, 2026

[MLIR] NVPTX LowerAlloca Failure during GPU Program Lowering

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

mlir:gpu

Status: Open.

Bug

#178354 In llvm/llvm-project;

· stoneman258 opened on Jan 28, 2026

Inconsistent and undocumented placement rules for __arm_streaming vs __arm_locally_streaming

new issue

Status: Open.

#178352 In llvm/llvm-project;

· cielavenir opened on Jan 28, 2026

(C23) Acessing a constexpr struct's member through the dot operator does not yield a constant.

c23

clang:frontendLanguage frontend issues, e.g. anything involving "Sema"Language frontend issues, e.g. anything involving "Sema"

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

Status: Open.

#178349 In llvm/llvm-project;

· bragabreno opened on Jan 28, 2026