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[InstCombine] foldBinOpShiftWithShift should require one-use on the intermediate binop

new issue

Status: Open.

#194007 In llvm/llvm-project;

· agrabezh opened on Apr 24, 2026

Crash due to unhandled expression in createPartialReductionExpression

llvm:transforms

vectorizers

Status: Open.

#194000 In llvm/llvm-project;

· john-brawn-arm opened on Apr 24, 2026

clangd core

clangd

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

Status: Open.

Bug

#193985 In llvm/llvm-project;

· ovpn-go opened on Apr 24, 2026

lldb-dap extension fails to launch debug session

lldb-dap

Status: Open.

#193971 In llvm/llvm-project;

· deqyra opened on Apr 24, 2026

[lit] Why does if statement containing <command> with exit status 0 (in Bash) fail?

questionA question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!A question, not bug report. Check out https://llvm.org/docs/GettingInvolved.html instead!

tools:llvm-lit

Status: Open.

#193963 In llvm/llvm-project;

· pmor13 opened on Apr 24, 2026

libc-unittests (etc) not using lit

libc

test-suite

Status: Open.

#193958 In llvm/llvm-project;

· kaladron opened on Apr 24, 2026

Bots are using ninja libc-unittests instead of check-libc

infrastructureBugs about LLVM infrastructureBugs about LLVM infrastructure

libc

Status: Open.

#193957 In llvm/llvm-project;

· kaladron opened on Apr 24, 2026

llvm-tblgen memory consumption with libc++ vs libstdc++

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

Status: Open.

#193949 In llvm/llvm-project;

· rnagy opened on Apr 24, 2026

clang 22 and 23.0.0git839a22f4 fails to compile a code where a concept is passed inside an NTTP lambda

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

conceptsC++20 conceptsC++20 concepts

needs-reductionLarge reproducer that should be reduced into a simpler formLarge reproducer that should be reduced into a simpler form

regression:22Regression in 22 releaseRegression in 22 release

Status: Open.

Bug

#193944 In llvm/llvm-project;

· Garmine opened on Apr 24, 2026

[clang] False positive -Wmissing-variable-declarations with constexpr variable template instantiation

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"

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

Status: Open.

Bug

#193937 In llvm/llvm-project;

· carlosgalvezp opened on Apr 24, 2026

[Clang] CGDebugInfo.cpp crash when enabling -gtemplate-alias option ("Dependent types cannot show up in debug information")

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

crash-on-valid

debuginfo

Status: Open.

Bug

#193932 In llvm/llvm-project;

· MaggieYingYi opened on Apr 24, 2026

[SLPVectorizer] Crashes with Instruction does not dominate all uses

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

generated by fuzzer

llvm:SLPVectorizer

Status: Open.

Bug

#193919 In llvm/llvm-project;

· SchWiniX opened on Apr 24, 2026