Search results

C++ mangling/ABI mismatch vs GCC

ABIApplication Binary InterfaceApplication Binary Interface

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

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

Status: Open.

#142187 In llvm/llvm-project;

· mstorsjo opened on May 30, 2025

[[msvc::no_unique_address]] differs in layout from MSVC ABI

ABIApplication Binary InterfaceApplication Binary Interface

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

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

platform:windows

Status: Open.

#136685 In llvm/llvm-project;

· Ext3h opened on Apr 22, 2025

Clang uses wrong ABI for __atomic_store_16 on Windows

ABIApplication Binary InterfaceApplication Binary Interface

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

platform:windows

Status: Open.

#136428 In llvm/llvm-project;

· Alcaro opened on Apr 19, 2025

clang++ incompatibility with libstdc++ gcc4-compatible ABI on Windows

ABIApplication Binary InterfaceApplication Binary Interface

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

platform:windows

Status: Open.

#135910 In llvm/llvm-project;

· jeremyd2019 opened on Apr 16, 2025

[clang][Sema] theoretical ABI break in LLVM 20.1.1

ABIApplication Binary InterfaceApplication Binary Interface

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

Status: Open.

Bug

#133955 In llvm/llvm-project;

· isuckatcs opened on Apr 1, 2025

 ·  

LLVM 20.X Release

ABI break for <code>_Atomic</code> in C++23 when using libstdc++

ABIApplication Binary InterfaceApplication Binary Interface

c++23

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

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

libstdc++GNU libstdc++ C++ standard libraryGNU libstdc++ C++ standard library

Status: Open.

Bug

#132998 In llvm/llvm-project;

· zygoloid opened on Mar 25, 2025

[clang++] operator==(vector of long, vector of long) -&gt; vector of long long

ABIApplication Binary InterfaceApplication Binary Interface

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

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

Status: Open.

#132604 In llvm/llvm-project;

· ImpleLee opened on Mar 23, 2025

Libcalls for Windows without SSE should return <code>i128</code> on the stack

ABIApplication Binary InterfaceApplication Binary Interface

backend:X86

platform:windows

Status: Open.

#127723 In llvm/llvm-project;

· tgross35 opened on Feb 19, 2025

[PowerPC] Parameters are not stored in stack as per ABI

ABIApplication Binary InterfaceApplication Binary Interface

backend:PowerPC

Status: Open.

#120700 In llvm/llvm-project;

· IshwaraK opened on Dec 20, 2024

Bad exception metadata leads to heap corruption on MSVC ABI, when throwing in a PCH from a member function of an exported class, then copying the exception

ABIApplication Binary InterfaceApplication Binary Interface

clang:PCHPrecompiled headersPrecompiled headers

platform:windows

Status: Open.

#118276 In llvm/llvm-project;

· adalisk-emikhaylov opened on Dec 2, 2024

On 32-bit x86, <code>half</code> return ABI is incorrect when SSE is enabled but SSE2 is disabled

ABIApplication Binary InterfaceApplication Binary Interface

backend:X86

Status: Open.

#112890 In llvm/llvm-project;

· beetrees opened on Oct 18, 2024

ABI for float builtins depends on target features

ABIApplication Binary InterfaceApplication Binary Interface

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

floating-pointFloating-point mathFloating-point math

Status: Open.

#112885 In llvm/llvm-project;

· beetrees opened on Oct 18, 2024