Search results

Unnecessary copying of struct field when the same field is later overwritten

backend:AArch64

backend:X86

missed-optimization

Status: Open.

#163899 In llvm/llvm-project;

· Kmeakin opened on Oct 17, 2025

[IR] Replace alignment argument with attribute on masked intrinsics

backend:AArch64

backend:AMDGPU

backend:ARM

backend:Hexagon

backend:RISC-V

backend:X86

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

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

compiler-rt:sanitizer

llvm:analysisIncludes value tracking, cost tables and constant foldingIncludes value tracking, cost tables and constant folding

llvm:codegen

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

llvm:ir

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

llvm:transforms

mlir

mlir:llvm

Status: Open (in progress).

llvm/llvm-projectnumber 163802

#163802 In llvm/llvm-project;

· nikic opened on Oct 16, 2025

[X86] Assertion failure in X86AsmBackend::applyFixup

backend:X86

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

llvm:mcMachine (object) codeMachine (object) code

Status: Open.

Bug

#163798 In llvm/llvm-project;

· s-barannikov opened on Oct 16, 2025

[X86]: Rewrite demorgan rule for ANDN

backend:X86

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open (in progress).

llvm/llvm-projectnumber 163789

#163789 In llvm/llvm-project;

· kper opened on Oct 16, 2025

[X86] Failure to use 128/256/512-bit vector types for very large integer logic ops

backend:X86

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open.

#163788 In llvm/llvm-project;

· RKSimon opened on Oct 16, 2025

Add FramePointerKind::NonLeafNoReserve

backend:X86

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

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

clang:driver'clang' and 'clang++' user-facing binaries. Not 'clang-cl''clang' and 'clang++' user-facing binaries. Not 'clang-cl'

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

llvm:codegen

llvm:ir

llvm:support

Status: Open (in progress).

llvm/llvm-projectnumber 163775

#163775 In llvm/llvm-project;

· omern1 opened on Oct 16, 2025

[X86] Failure to merge VPTERNLOG patterns

backend:X86

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

missed-optimization

Status: Open.

#163738 In llvm/llvm-project;

· RKSimon opened on Oct 16, 2025

[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX512 expand intrinsics to be used in constexpr

backend:X86

clang:bytecodeIssues for the clang bytecode constexpr interpreterIssues for the clang bytecode constexpr interpreter

clang:headersHeaders provided by Clang, e.g. for intrinsicsHeaders provided by Clang, e.g. for intrinsics

constexprAnything related to constant evaluationAnything related to constant evaluation

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

Status: Open.

Task

#163734 In llvm/llvm-project;

· RKSimon opened on Oct 16, 2025

[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX512 compress intrinsics to be used in constexpr

backend:X86

clang:bytecodeIssues for the clang bytecode constexpr interpreterIssues for the clang bytecode constexpr interpreter

clang:headersHeaders provided by Clang, e.g. for intrinsicsHeaders provided by Clang, e.g. for intrinsics

constexprAnything related to constant evaluationAnything related to constant evaluation

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

Status: Open.

Task

#163732 In llvm/llvm-project;

· RKSimon opened on Oct 16, 2025

CodeGen: Fix hardcoded libcall names in insertSSPDeclarations

backend:ARM

backend:X86

llvm:codegen

Status: Open (in progress).

llvm/llvm-projectnumber 163710

#163710 In llvm/llvm-project;

· arsenm opened on Oct 16, 2025

[clang] Move options from clangDriver into new clangOptions library (NFC)

backend:AArch64

backend:AMDGPU

backend:ARM

backend:CSKY

backend:Hexagon

backend:loongarch

backend:MIPS

backend:PowerPC

backend:RISC-V

backend:Sparc

backend:SPIR-V

backend:SystemZ

backend:X86

bazel"Peripheral" support tier build system: utils/bazel"Peripheral" support tier build system: utils/bazel

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

clang-tools-extra

clang:driver'clang' and 'clang++' user-facing binaries. Not 'clang-cl''clang' and 'clang++' user-facing binaries. Not 'clang-cl'

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

clang:openmpOpenMP related changes to ClangOpenMP related changes to Clang

clangd

Status: Open (in progress).

llvm/llvm-projectnumber 163659

#163659 In llvm/llvm-project;

· naveen-seth opened on Oct 15, 2025

[CostModel] Estimate the codesize cost of switch

backend:X86

llvm:analysisIncludes value tracking, cost tables and constant foldingIncludes value tracking, cost tables and constant folding

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 163569

#163569 In llvm/llvm-project;

· XChy opened on Oct 15, 2025