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release/21.x: [AArch64] Replace expensive move from wzr by two moves via floating point immediate (#146538)

backend:AArch64

Status: Open (in progress).

llvm/llvm-projectnumber 150001

#150001 In llvm/llvm-project;

· llvmbot opened on Jul 22, 2025

release/21.x: [CMake][Release] Build with -ffat-lto-objects (#140381)

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

Status: Open (in progress).

llvm/llvm-projectnumber 151245

#151245 In llvm/llvm-project;

· llvmbot opened on Jul 29, 2025

perl 5.40.2 fails to run simple script when compiled with Clang-21.1.0-rc2

llvm:optimizations

miscompilation

needs-reductionLarge reproducer that should be reduced into a simpler formLarge reproducer that should be reduced into a simpler form

regression:21Regression in 21 releaseRegression in 21 release

Status: Open.

Bug

#152241 In llvm/llvm-project;

· kraj opened on Aug 6, 2025

Unable to compile 21.1.0 on macOS Sequoia from source

build-problem

lldb

platform:macos

Status: Open.

#155532 In llvm/llvm-project;

· JWTheDBA opened on Aug 27, 2025

LLVM-20.1.0-Linux-ARM64 release is missing libomp

openmp

packaging

platform:linux

Status: Open.

#135021 In llvm/llvm-project;

· luporl opened on Apr 9, 2025

release/21.x: [CMake][AIX] quote the string AIX <code>if</code> conditions

Status: Open (in progress).

llvm/llvm-projectnumber 156505

#156505 In llvm/llvm-project;

· llvmbot opened on Sep 2, 2025

release/21.x: [clang] Followup for constexpr-unknown potential constant expressions. (#151053)

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

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

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

Status: Open (in progress).

llvm/llvm-projectnumber 157098

#157098 In llvm/llvm-project;

· llvmbot opened on Sep 5, 2025

release/21.x: [AArch64][PAC][GISel] Add missing clobbering info to LOADgotAUTH (#157433)

backend:AArch64

llvm:globalisel

Status: Open (in progress).

llvm/llvm-projectnumber 160668

#160668 In llvm/llvm-project;

· llvmbot opened on Sep 25, 2025

[Hexagon] <code>Assertion 'StageScheduled != -1 &amp;&amp; "Expecting scheduled instruction."' failed.</code> when building <code>APFloat.cpp</code>

backend:Hexagon

crash-on-valid

Status: Open.

Bug

#161050 In llvm/llvm-project;

· alexrp opened on Sep 28, 2025

Backport of #136412 to release/21.x

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

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

Status: Open (in progress).

llvm/llvm-projectnumber 165842

#165842 In llvm/llvm-project;

· pvelesko opened on Oct 31, 2025

release/21.x: [lldb] Implement DW_CFA_val_offset and DW_CFA_val_offset_sf (#150732)

lldb

Status: Open (in progress).

llvm/llvm-projectnumber 166611

#166611 In llvm/llvm-project;

· llvmbot opened on Nov 5, 2025

release/21.x: [debugserver] Fix debugserver build on &lt; macOS 10.15 (#166599)

lldb

Status: Open (in progress).

llvm/llvm-projectnumber 166614

#166614 In llvm/llvm-project;

· llvmbot opened on Nov 5, 2025

release/21.x: [clang][modules] Fix crash in enum visibility lookup for C++20 header units (#166272)

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

clang:modulesC++20 modules and Clang Header ModulesC++20 modules and Clang Header Modules

Status: Open (in progress).

llvm/llvm-projectnumber 166701

#166701 In llvm/llvm-project;

· llvmbot opened on Nov 6, 2025

release/21.x: [RISCV] Correct the CFA offsets for stack probing. (#166616)

backend:RISC-V

Status: Open (in progress).

llvm/llvm-projectnumber 166783

#166783 In llvm/llvm-project;

· llvmbot opened on Nov 6, 2025