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[clang][-Wimplicit-void-ptr-cast] A new false error caused by an unexpected AST change

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

confirmedVerified by a second partyVerified by a second party

Status: Open.

#154157 In llvm/llvm-project;

· ziqingluo-90 opened on Aug 18, 2025

[clang] crash on lambda capturing *this with this parameter

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]

lambdaC++11 lambda expressionsC++11 lambda expressions

regression:19Regression in 19 releaseRegression in 19 release

Status: Open.

Bug

#154054 In llvm/llvm-project;

· k-arrows opened on Aug 18, 2025

[analyzer] Assertion `detail::isPresent(Val) && "dyn_cast on a non-existent value"' failed.

clang:static analyzer

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:21

Status: Open.

Bug

#154042 In llvm/llvm-project;

· k-arrows opened on Aug 18, 2025

[clang] crashes when redeclaring a struct with [[gnu::unused]] attribute

c23

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

#153916 In llvm/llvm-project;

· k-arrows opened on Aug 16, 2025

[clang][bytecode] Assertion `R' failed.

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"

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]

Status: Open.

Bug

#153803 In llvm/llvm-project;

· k-arrows opened on Aug 15, 2025

[ObjC] Assertion failure when parsing constructor with invalid attribute syntax

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

objective-c++

Status: Open.

Bug

#153731 In llvm/llvm-project;

· k-arrows opened on Aug 15, 2025

[clang][bytecode] Assertion `isIntegralPointer()' failed.

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"

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]

Status: Open.

Bug

#153712 In llvm/llvm-project;

· k-arrows opened on Aug 15, 2025

clang crashes at -O{1,2,3} on x86_64-linux-gnu: Assertion `pred_empty(DelBB) && "DelBB has one or more predecessors."' failed

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]

llvm:optimizations

regression:20Regression in 20 releaseRegression in 20 release

Status: Open.

Bug

#153295 In llvm/llvm-project;

· zhendongsu opened on Aug 12, 2025

ICE with statement expression + builtin: Assertion failed: (!isValueDependent() && "Expression evaluator can't be called on a dependent expression.")

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]

Status: Open.

Bug

#153082 In llvm/llvm-project;

· comex opened on Aug 11, 2025

[clang][bytecode] Assertion `Val && "isa<> used on a null pointer"' failed

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"

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

#152958 In llvm/llvm-project;

· k-arrows opened on Aug 11, 2025

[clang][bytecode] crash with --std=c++26 --analyze -fexperimental-new-constant-interpreter

c++26

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"

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

#152952 In llvm/llvm-project;

· k-arrows opened on Aug 11, 2025

[clang][bytecode] crash on large multi-dimensional array in new expression

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"

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:18Regression in 18 releaseRegression in 18 release

Status: Open.

Bug

#152951 In llvm/llvm-project;

· k-arrows opened on Aug 11, 2025