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[clang] Crash in release mode and assertion fail in build with asserts when compiling for Windows with -std=c++17

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

confirmedVerified by a second partyVerified by a second party

crash-on-valid

regression

Status: Open.

Bug

#144081 In llvm/llvm-project;

· Fznamznon opened on Jun 13, 2025

[RISCV] 507.cactuBSSN_r regression after bidirectional scheduling/register pressure tracking

backend:RISC-V

regression

Status: Open.

#143005 In llvm/llvm-project;

· sihuan opened on Jun 5, 2025

PowerPC regressions introduce by 3469db82b5c821c94b58c0b81f03bbef51efa30b

backend:PowerPC

llvm:SLPVectorizer

miscompilation

regression

Status: Open.

Bug

#141642 In llvm/llvm-project;

· tstellar opened on May 27, 2025

 ·  

LLVM 20.X Release

placement new

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

confirmedVerified by a second partyVerified by a second party

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

regression

Status: Open.

Bug

#136518 In llvm/llvm-project;

· ordinary-github-user opened on Apr 20, 2025

[AArch64] auto-vectorizer regression

backend:AArch64

regression

Status: Open.

#127134 In llvm/llvm-project;

· appujee opened on Feb 13, 2025

[SLP] Polyhedron/fatigue2 16% slowdown after 88e7b8b

backend:X86

llvm:SLPVectorizer

performance

regression

Status: Open.

#126330 In llvm/llvm-project;

· vzakhari opened on Feb 8, 2025

Regression in Fedora pybind11 package caused by 7954a0514ba7de40dba6c598af830fd1b7a8bf0c

regression

Status: Open.

Bug

#119507 In llvm/llvm-project;

· tstellar opened on Dec 11, 2024

[flang] Fortran/gfortran/regression/entry_23.f crashes on several non-x86 platforms

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

regression

Status: Open.

Bug

#119418 In llvm/llvm-project;

· tarunprabhu opened on Dec 10, 2024

regression: clang -Wunused-parameter stopped warning for unused params in Objective-C methods at some point

clang:diagnosticsNew/improved warning or error message in Clang, but not in clang-tidy or static analyzerNew/improved warning or error message in Clang, but not in clang-tidy or static analyzer

objective-c

regression

Status: Open.

#117931 In llvm/llvm-project;

· seanm opened on Nov 27, 2024

[Clang] ICE on <code>void{}</code>

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

confirmedVerified by a second partyVerified by a second party

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

regression

Status: Open.

#116440 In llvm/llvm-project;

· MagentaTreehouse opened on Nov 15, 2024

[clang] Assertion `CachedLexPos != 0' failed.

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

confirmedVerified by a second partyVerified by a second party

crash-on-invalid

regression

regression:20Regression in 20 releaseRegression in 20 release

Status: Open.

Bug

#114815 In llvm/llvm-project;

· yijan4845 opened on Nov 4, 2024

Clang-20 Crash: TemplateArgument kind is not expected for NTTP UNREACHABLE executed at /root/llvm-project/clang/lib/AST/ASTDiagnostic.cpp:1245!

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

confirmedVerified by a second partyVerified by a second party

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

regression

Status: Open.

#114758 In llvm/llvm-project;

· iamanonymouscs opened on Nov 4, 2024