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Inlining function with mismatching target feature using [[gnu::flatten]] attribute causes fatal error

backend:X86

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

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

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open.

Bug

#149866 In llvm/llvm-project;

· mjacobse opened on Jul 21, 2025

[PATCH 5/7] [clang] NNS improvement: getOriginalDecl changes

backend:AArch64

backend:AMDGPU

backend:ARC

backend:ARM

backend:CSKY

backend:Hexagon

backend:Lanai

backend:loongarch

backend:MIPS

backend:PowerPC

backend:RISC-V

backend:Sparc

backend:SystemZ

backend:WebAssembly

backend:X86

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

clang-tidy

clang-tools-extra

clang:analysis

clang:as-a-librarylibclang and C++ APIlibclang and C++ API

Status: Open (in progress).

llvm/llvm-projectnumber 149747

#149747 In llvm/llvm-project;

· mizvekov opened on Jul 20, 2025

[X86] Port shouldBeAdjustedToZero to simplify TranslateX86CC (NFC)

backend:X86

Status: Open (in progress).

llvm/llvm-projectnumber 149742

#149742 In llvm/llvm-project;

· AZero13 opened on Jul 20, 2025

[X86] Try to shrink signed i64 compares if the input has enough one bits

backend:X86

Status: Open (in progress).

llvm/llvm-projectnumber 149719

#149719 In llvm/llvm-project;

· AZero13 opened on Jul 20, 2025

[x64][win] Bad codegen with -import-call-optimization

backend:X86

miscompilation

platform:windows

Status: Open.

Bug

#149714 In llvm/llvm-project;

· SEt-t opened on Jul 20, 2025

[X86] Use the standard cmp+cmov for select (X != 0), -1, Y if we will be setting sbb to 0 anyway

backend:X86

Status: Open (in progress).

llvm/llvm-projectnumber 149672

#149672 In llvm/llvm-project;

· AZero13 opened on Jul 19, 2025

[IA] Support vp.store in lowerinterleavedStore

backend:AArch64

backend:ARM

backend:RISC-V

backend:X86

llvm:codegen

Status: Open (in progress).

llvm/llvm-projectnumber 149605

#149605 In llvm/llvm-project;

· preames opened on Jul 18, 2025

clang Assertion `StackTop == (unsigned)llvm::popcount(Mask) && "Live count mismatch"' failed.

backend:X86

confirmedVerified by a second partyVerified by a second party

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

generated by fuzzer

Status: Open.

Bug

#149371 In llvm/llvm-project;

· bi6c opened on Jul 17, 2025

Clang crash on llvm::AsmPrinter::emitInlineAsm(llvm::MachineInstr const*) const

backend:X86

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

generated by fuzzer

Status: Open.

Bug

#149368 In llvm/llvm-project;

· bi6c opened on Jul 17, 2025

Treat ';' and '\n' as assembly instruction separators in collectAsmInstrs

backend:X86

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

llvm:ir

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

llvm:transforms

Status: Open (in progress).

llvm/llvm-projectnumber 149365

#149365 In llvm/llvm-project;

· rlavaee opened on Jul 17, 2025

[llvm] Don't combine repeated subnormal divisors

backend:X86

floating-pointFloating-point mathFloating-point math

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open (in progress).

llvm/llvm-projectnumber 149333

#149333 In llvm/llvm-project;

· ashermancinelli opened on Jul 17, 2025

IR: Introduce !elf_section_properties for setting section properties.

backend:X86

llvm:codegen

llvm:ir

Status: Open (in progress).

llvm/llvm-projectnumber 149260

#149260 In llvm/llvm-project;

· pcc opened on Jul 17, 2025