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Crash in llvm::cast<ConstantArrayType> when using compound literal with designated initializer in macro. It has arised again in version 21 (in 20 it doesnt in 17 yes))

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

crash-on-invalid

regression

Status: Open.

Bug

#144866 In llvm/llvm-project;

· mariete1223 opened on Jun 19, 2025

[llvm] LLVM backend crashes when using <code>__builtin_ia32_prefetchi</code>

backend:X86

crash-on-invalid

llvm:SelectionDAGSelectionDAGISel as wellSelectionDAGISel as well

Status: Open.

Bug

#144857 In llvm/llvm-project;

· MacroModel opened on Jun 19, 2025

[Flang] fatal internal error: nullptr dereference at /root/llvm-project/flang/lib/Semantics/tools.cpp(358)

crash-on-invalid

flang:fir-hlfir

flang:ir

Status: Open.

Bug

#143510 In llvm/llvm-project;

· k-arrows opened on Jun 10, 2025

Clang-21 Crash: Assertion `!Info.isIncomplete() &amp;&amp; "Access to an object of an incomplete type!"' failed.

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

crash-on-invalid

Status: Open.

Bug

#143091 In llvm/llvm-project;

· hyf751175784 opened on Jun 6, 2025

[clang] crash infinite recursion template template parameter default argument

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

crash-on-invalid

Status: Open.

Bug

#142842 In llvm/llvm-project;

· mizvekov opened on Jun 4, 2025

I got this when compiling Bullet 3D physics engine in Ogre3d sources

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

crash-on-invalid

llvm:codegen

Status: Open.

#141343 In llvm/llvm-project;

· Joilnen opened on May 24, 2025

Assertion failure "Assertion `isa&lt;LabelDecl&gt;(D) &amp;&amp; "declaration not instantiated in this scope"' 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

Status: Open.

Bug

#140898 In llvm/llvm-project;

· hokein opened on May 21, 2025

Clang sequencial incorrect #pragma specification end in ICE since 3.5

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

Status: Open.

Bug

#140687 In llvm/llvm-project;

· mariete1223 opened on May 20, 2025

crash report

crash-on-invalid

platform:windows

Status: Open.

#140358 In llvm/llvm-project;

· felinepunch opened on May 17, 2025

[OpenMP] Assertion `(isUnevaluated() || getCharByteWidth() == 1) &amp;&amp; "This function is used in places that assume strings use char"' failed.

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

clang:openmpOpenMP related changes to ClangOpenMP related changes to Clang

confirmedVerified by a second partyVerified by a second party

crash-on-invalid

Status: Open.

Bug

#140338 In llvm/llvm-project;

· k-arrows opened on May 17, 2025

[OpenMP] crash on invalid C++ code

clang:openmpOpenMP related changes to ClangOpenMP related changes to Clang

confirmedVerified by a second partyVerified by a second party

crash-on-invalid

Status: Open.

Bug

#140243 In llvm/llvm-project;

· k-arrows opened on May 16, 2025

Clang ICE / LLVM oom after allocd[32] = '\2'; in C and C++ related to CodeGen

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

Status: Open.

Bug

#140023 In llvm/llvm-project;

· mariete1223 opened on May 15, 2025