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LLDB cannot load PDB symbols if the PDB path differs from the one embedded in the .exe

lldb

platform:windows

Status: Open.

#169628 In llvm/llvm-project;

· ntoslinux opened on Nov 26, 2025

build of my project using LLVM as a dependency failed on the Windows platform

build-problem

llvm:transforms

platform:windows

Status: Open.

#169605 In llvm/llvm-project;

· cctv130 opened on Nov 26, 2025

Win ARM64 prolog prevents use of packed unwind info

backend:AArch64

platform:windows

Status: Open.

#169588 In llvm/llvm-project;

· LouisLaf opened on Nov 26, 2025

lldb crash in Win 11 Arm

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

lldb

platform:windows

Swift

Status: Open.

Bug

#169323 In llvm/llvm-project;

· holleB opened on Nov 24, 2025

[LLD][COFF] Prefetch inputs early-on to improve link times

lld

lld:COFF

llvm:support

platform:windows

Status: Open (in progress).

llvm/llvm-projectnumber 169224

#169224 In llvm/llvm-project;

· aganea opened on Nov 23, 2025

[ARM64EC] LTO fails with a simple C++ testcase

LTOLink time optimization (regular/full LTO or ThinLTO)Link time optimization (regular/full LTO or ThinLTO)

platform:windows

Status: Open.

#168469 In llvm/llvm-project;

· efriedma-quic opened on Nov 18, 2025

Clang-cl miscompiles load of function pointer inside a struct initialiser

clang-cl`clang-cl` driver. Don't use for other compiler parts`clang-cl` driver. Don't use for other compiler parts

miscompilation

platform:windows

Status: Open.

#167750 In llvm/llvm-project;

· timabroad opened on Nov 12, 2025

Undefined symbols when using ThinLTO + cs-profile-generate

clang-cl`clang-cl` driver. Don't use for other compiler parts`clang-cl` driver. Don't use for other compiler parts

PGOProfile Guided OptimizationsProfile Guided Optimizations

platform:windows

questionA question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!A question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!

Status: Open.

#167327 In llvm/llvm-project;

· tru opened on Nov 10, 2025

<code>sysv_abi</code> attribute for constructors and destructors on Windows, and/or in a pragma?

ABIApplication Binary InterfaceApplication Binary Interface

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

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

platform:windows

Status: Open.

Feature

#166925 In llvm/llvm-project;

· solbjorn opened on Nov 7, 2025

[lldb][NativePDB] Fix crash in debugger when PDB has bad type index value

debuginfo

lldb

platform:windows

Status: Open (in progress).

llvm/llvm-projectnumber 166455

#166455 In llvm/llvm-project;

· gv opened on Nov 4, 2025

Windows clang++ crash when using -fprofile-generate-cold-function-coverage

coverage

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

platform:windows

Status: Open.

Bug

#166377 In llvm/llvm-project;

· cosminpolifronie opened on Nov 4, 2025

[Support] Join threads when stopping the ThreadPoolExecutor

llvm:support

platform:windows

Status: Open (in progress).

llvm/llvm-projectnumber 166054

#166054 In llvm/llvm-project;

· momo5502 opened on Nov 2, 2025