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CTAD is not valid with a dependent nested-name-specifier

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

Status: Open.

#189292 In llvm/llvm-project;

· Halalaluyafail3 opened on Mar 29, 2026

Loads of a string pointer from an inline const variable are emitted as an independent local constant in each TU

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

Status: Open.

#189290 In llvm/llvm-project;

· filip-hejsek opened on Mar 29, 2026

wrong code at -O3 on x86_64-linux-gnu

llvm:optimizations

miscompilation

Status: Open.

#189289 In llvm/llvm-project;

· zhendongsu opened on Mar 29, 2026

[clangd] System includes from --query-driver miss builtin headers when -resource-dir is overridden

clangd

Status: Open.

#189288 In llvm/llvm-project;

· arikon opened on Mar 29, 2026

Clang crashes with assertion failure when assigning to elements of ext_vector_type with bool element type

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

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

Status: Open.

Bug

#189260 In llvm/llvm-project;

· cactusBalll opened on Mar 29, 2026

[clang] Crash when compiling a "modularized" project generated using CMake 4.3.0

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

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

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

Status: Open.

Bug

#189256 In llvm/llvm-project;

· 0xIsho opened on Mar 29, 2026

Clang crashes when compiling with C++ 26, libc++ and using modules

c++26

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

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

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

Status: Open.

Bug

#189252 In llvm/llvm-project;

· m1maker opened on Mar 29, 2026

[WebAssembly] SIMD operations on half make llc hang

backend:WebAssembly

hangCompiler hang (infinite loop)Compiler hang (infinite loop)

Status: Open.

Bug

#189251 In llvm/llvm-project;

· folkertdev opened on Mar 29, 2026

[clang] crash when using block pointer as NTTP with nullptr

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

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

generated by fuzzer

Status: Open.

Bug

#189247 In llvm/llvm-project;

· k-arrows opened on Mar 29, 2026

wrong code at -O{s,2,3} on x86_64-linux-gnu

llvm:optimizations

miscompilation

Status: Open.

#189234 In llvm/llvm-project;

· zhendongsu opened on Mar 29, 2026

clang crashes on valid code at -O{2,3} on x86_64-linux-gnu: Assertion ` ... " VPlan cost model and legacy cost model disagreed"' failed

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

vectorizers

Status: Open.

Bug

#189233 In llvm/llvm-project;

· zhendongsu opened on Mar 29, 2026

[clang-tidy] readability-redundant-parentheses ignored operator precedence for overload operators

clang-tidy

Status: Open.

#189217 In llvm/llvm-project;

· zufuliu opened on Mar 29, 2026