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[libc++] Use platform timed wait in. <code>semaphore::try_acquire_{for, until}</code>

libc++libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

Status: Open.

#172137 In llvm/llvm-project;

· huixie90 opened on Dec 13, 2025

Return value of std::meta::bases_of is not usable in consteval context

new issue

Status: Open.

#172136 In llvm/llvm-project;

· hutorny opened on Dec 13, 2025

[libc++] Apply <code>[[nodiscard]]</code> to the Standard Library

libc++libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

Status: Open.

#172124 In llvm/llvm-project;

· H-G-Hristov opened on Dec 13, 2025

[compiler-rt] check-builtins is broken when multiple compiler-rt targets are built

compiler-rt:builtins

Status: Open.

#172121 In llvm/llvm-project;

· w2yehia opened on Dec 13, 2025

[C23] Type of enumeration constants having enumerated type wrong in C

c23

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.

#172118 In llvm/llvm-project;

· hubert-reinterpretcast opened on Dec 13, 2025

clang-cl doesn't compile MSVC code using SIMD intrinsics

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

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

Status: Open.

#172104 In llvm/llvm-project;

· dsharlet opened on Dec 12, 2025

[SDAG] Masking vector lanes instead of truncating

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open.

#172100 In llvm/llvm-project;

· natanelh-mobileye opened on Dec 12, 2025

Assertion failure during ARM Block Placement pass for ARM 32 bit baremetal target

backend:ARM

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

Status: Open.

Bug

#172098 In llvm/llvm-project;

· Prabhuk opened on Dec 12, 2025

[missed-opt] [selectiondag] Bad codegen on shift of a 128-bit number by an assumed-small amount

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

missed-optimization

Status: Open.

#172097 In llvm/llvm-project;

· purplesyringa opened on Dec 12, 2025

Redundant sext.w in signed overflow checking with -ftrapv

backend:RISC-V

missed-optimization

Status: Open.

#172089 In llvm/llvm-project;

· camel-cdr opened on Dec 12, 2025

Error: Do not know how to split the result of this operator

new issue

Status: Open.

#172079 In llvm/llvm-project;

· arjunr2 opened on Dec 12, 2025

[flang][OpenMP] Regression in OpenMP master region with private target integer.

flang:ir

flang:openmp

Status: Open.

#172075 In llvm/llvm-project;

· scamp-nvidia opened on Dec 12, 2025