Search results

[X86] Bad codegen for _mm512_permutexvar_epi8 AVX-512 intrinsic

confirmedVerified by a second partyVerified by a second party

crash-on-valid

new issue

Status: Open.

#199445 In llvm/llvm-project;

· folkertdev opened on May 24, 2026

Incorrect function epilogue when calling a function with the return_twice attribute on PowerPC

new issue

Status: Open.

#199441 In llvm/llvm-project;

· armanincredible opened on May 24, 2026

[LoopFusion] peelFusionCandidate violates LCSSA precondition of simplifyLoop when -loop-fusion-peel-max-count > 0

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]

crash-on-valid

generated by fuzzer

llvm:transforms

Status: Open.

#199418 In llvm/llvm-project;

· madhur13490 opened on May 24, 2026

[clang] Sanity check assertion failures triggered in ASTStructuralEquivalence::isEquivalent

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

#199417 In llvm/llvm-project;

· k-arrows opened on May 24, 2026

[clang] Assertion `isValid() && I.isValid() && "ParamIdx must be valid to be compared"' failed.

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

#199407 In llvm/llvm-project;

· k-arrows opened on May 24, 2026

[InstCombine] Fold null-check over pointer umax select

llvm:instcombineCovers the InstCombine, InstSimplify and AggressiveInstCombine passesCovers the InstCombine, InstSimplify and AggressiveInstCombine passes

missed-optimization

Status: Open.

#199402 In llvm/llvm-project;

· ParkHanbum opened on May 24, 2026

[clangd] [modules] Importing new module requires restart of clangd

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

clangd

Status: Open.

#199389 In llvm/llvm-project;

· berkaysahiin opened on May 24, 2026

[RISC-V][GlobalISel] llvm.bswap.i64 miscompile on RV64 (no Zbb) due to sign-extended mask in lowerBswap

backend:RISC-V

llvm:codegen

llvm:globalisel

miscompilation

Status: Open.

#199386 In llvm/llvm-project;

· lonemeow opened on May 24, 2026

Request Commit Access For argothiel

infra:commit-access-request

Status: Open.

#199362 In llvm/llvm-project;

· argothiel opened on May 23, 2026

[AMDGPU] Machine verifier reports undefined VGPRs after SI post-RA bundler when storing <2 x i63> to nullptr

confirmedVerified by a second partyVerified by a second party

crash-on-valid

generated by fuzzer

Status: Open.

#199350 In llvm/llvm-project;

· hazohelet opened on May 23, 2026

[AMDGPU] machine verifier "Using an undefined physical register" in V_CNDMASK_B32 on irregular vector extractelement

confirmedVerified by a second partyVerified by a second party

crash-on-valid

generated by fuzzer

Status: Open.

#199349 In llvm/llvm-project;

· hazohelet opened on May 23, 2026

opt -passes=newgvn crashes on llvm/test/CodeGen/ARM/spill-q.ll

confirmedVerified by a second partyVerified by a second party

crash-on-valid

llvm:GVNGVN and NewGVN stages (Global value numbering)GVN and NewGVN stages (Global value numbering)

Status: Open.

Bug

#199348 In llvm/llvm-project;

· k-arrows opened on May 23, 2026