Search results

[clang] compiling int x = (::h); in C mode causes infinite loop

c

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

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

regression:17Regression in 17 releaseRegression in 17 release

Status: Open.

Bug

#195367 In llvm/llvm-project;

· wbenny opened on May 1, 2026

Clang's support for aligned attributes on enums in C does not appear to have been thought through

c

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

diverges-from:gccDoes the clang frontend diverge from gcc on this issueDoes the clang frontend diverge from gcc on this issue

Status: Open.

#190138 In llvm/llvm-project;

· pascal-cuoq opened on Apr 2, 2026

[Clang] __{,u}INT_FAST{16,32}_TYPE__ is incorrect

c

c++

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

Status: Open.

#168333 In llvm/llvm-project;

· philnik777 opened on Nov 17, 2025

[Clang] Unhelpful ambiguous __attribute__((overloadable)) diagnostic

c

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

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

Status: Open.

Bug

#157353 In llvm/llvm-project;

· Sirraide opened on Sep 7, 2025

When compiling C to IA-32, Clang makes wchar_t an alias of int

c

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

diverges-from:gccDoes the clang frontend diverge from gcc on this issueDoes the clang frontend diverge from gcc on this issue

platform:linux

Status: Open.

#152293 In llvm/llvm-project;

· pascal-cuoq opened on Aug 6, 2025

Implement DR277 to reject non-object declarations in for loops pre-C23

c

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

Status: Open.

#152216 In llvm/llvm-project;

· Halalaluyafail3 opened on Aug 5, 2025

New dialect flag: -farray-parameters-are-arrays

c

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

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.

Feature

#151744 In llvm/llvm-project;

· alejandro-colomar opened on Aug 1, 2025

New dialect flag: -farray-parameters-are-const

c

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

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.

Feature

#151526 In llvm/llvm-project;

· alejandro-colomar opened on Jul 31, 2025

Extend _Countof() to work with array parameters

c

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

Status: Open.

Feature

#150953 In llvm/llvm-project;

· alejandro-colomar opened on Jul 28, 2025

Typo corrections for standard names

c

c++

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

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

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

clangd

Status: Open.

Feature

#139855 In llvm/llvm-project;

· cor3ntin opened on May 14, 2025

Handle comma operator for implicit int->enum conversions

c

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

false-positiveWarning fires when it should notWarning fires when it should not

Status: Open.

Bug

#139536 In llvm/llvm-project;

· asmok-g opened on May 12, 2025

Clang segfault in clang::Sema::PushCompoundScope

c

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

Status: Open.

Bug

#129873 In llvm/llvm-project;

· melver opened on Mar 5, 2025