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[Clang] Crash (SIGSEGV) in template argument deduction involving nested generic lambdas and local classes

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

Status: Open.

#152689 In llvm/llvm-project;

· Xniao opened on Aug 8, 2025

New flang regression: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed

flangFlang issues not falling into any other categoryFlang issues not falling into any other category

Status: Open.

#152683 In llvm/llvm-project;

· scamp-nvidia opened on Aug 8, 2025

LLDB Unittest MainLoopTest.cpp pipe tests sometimes time out on Windows on Arm

flakeBuild bot flakesBuild bot flakes

lldb

Status: Open.

#152677 In llvm/llvm-project;

· DavidSpickett opened on Aug 8, 2025

[llvm 20.1.4]DominatorTreeAnalysis failed to be used

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

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

Status: Open.

Bug

#152673 In llvm/llvm-project;

· kdr521 opened on Aug 8, 2025

[libc++] i think the <charconv> algorithm can be improved

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

performance

Status: Open.

#152655 In llvm/llvm-project;

· Mjz86 opened on Aug 8, 2025

[clang-tidy] readability-container-size-empty fails to detect calls to member functions

clang-tidy

enhancementImproving things as opposed to bug fixing, e.g. new or missing featureImproving things as opposed to bug fixing, e.g. new or missing feature

Status: Open.

#152649 In llvm/llvm-project;

· vbvictor opened on Aug 8, 2025

[Feature request] Can clang-cl provide the necessary VCRuntime headers required by Windows SDK?

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

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

Status: Open.

Feature

#152648 In llvm/llvm-project;

· fithisux opened on Aug 8, 2025

[Flang][OpenMP] Heap allocation for private variables prevents SROA optimization

flang:openmp

llvm:optimizations

missed-optimization

Status: Open.

#152639 In llvm/llvm-project;

· yus3710-fj opened on Aug 8, 2025

[flang] Fixed form parser problem

flang:frontend

Status: Open.

Bug

#152638 In llvm/llvm-project;

· DanielCChen opened on Aug 8, 2025

clangd support for 'deducing this'

clangd

metaissueIssue to collect references to a group of similar or related issues.Issue to collect references to a group of similar or related issues.

Status: Open.

Task

#152637 In llvm/llvm-project;

· MythreyaK opened on Aug 8, 2025

[SDAG][X86] Miscompilation at -O3

backend:X86

generated by fuzzer

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

miscompilation

Status: Open.

Bug

#152630 In llvm/llvm-project;

· dtcxzyw opened on Aug 8, 2025

<code>switch (p ? a + C1 : C2)</code> should eliminate the add

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

missed-optimization

Status: Open.

#152626 In llvm/llvm-project;

· scottmcm opened on Aug 8, 2025