Issues

• [HLSL][SPIR-V] cbuffer padding (spirv.Padding) is lowered to i8 struct members, requiring Int8 and 8-bit uniform access

  backend:SPIR-VHLSL
  llvm/llvm-project#242106 · Filter by author jzakharovnv opened on Nov 12, 2026

• Suboptimal saturating_mul(-1, x)

  backend:AArch64backend:X86missed-optimization
  llvm/llvm-project#242074 · Filter by author Kmeakin opened on Nov 12, 2026
  2

• [HLSL][SPIR-V] Decide how clang-dxc chooses the SPIR-V extensions to enable

  backend:SPIR-Vclang:HLSL:SPIRVSPIR-V
  llvm/llvm-project#242027 · Filter by author dnovillo opened on Nov 12, 2026
  

• [BasicAA] GEP element sizes are truncated to 32 bits, causing miscompilation and an APInt assertion

  confirmedcrash-on-validllvm:analysisregression:20
  Bug

  llvm/llvm-project#242012 · Filter by author cjsrxzdyzds opened on Nov 12, 2026

• [flang] Accesses to an EQUIVALENCE member at a misaligned block offset claim the member's natural alignment

  flang
  llvm/llvm-project#241963 · Filter by author eugeneepshteyn opened on Nov 12, 2026

• [X86] zmm byte rotate by 24 lowered to vprold instead of vpshufb

  backend:X86
  llvm/llvm-project#241962 · Filter by author timurgol007 opened on Nov 12, 2026
  3

  

• [IndVarSimplify] Congruent IV elimination replaces an IV with one whose start value may be poison

  confirmedgenerated by fuzzermiscompilationregression:18
  Bug

  llvm/llvm-project#241954 · Filter by author arie2026 opened on Nov 12, 2026

• [clang-tidy] readability-make-member-function-const should not emit warnings when a const overload exists

  clang-tidyfalse-positive
  llvm/llvm-project#241953 · Filter by author Jacobfaib opened on Nov 12, 2026
  1

• [AMDGPU][gfx125x] Is waiting for global_inv required when it's the only outstanding LOADcnt op?

  backend:AMDGPUnew issue
  llvm/llvm-project#241948 · Filter by author danzimm opened on Nov 12, 2026
  1

• [AArch64] Compiler hang with SVE at -O2 with BitInt

  backend:AArch64generated by fuzzerhangSVE
  Bug

  llvm/llvm-project#241920 · Filter by author hazohelet opened on Nov 12, 2026
  2

• [LoopVectorize] assertion failure "Element type of a VectorType must be an integer/fp/pointer/valid target extension type."

  crash-on-validgenerated by fuzzerllvm:loopvectorize
  Bug

  llvm/llvm-project#241918 · Filter by author hazohelet opened on Nov 12, 2026

• [PowerPC] wrong code at -O2: xori of a register known to be 0 with 65535 becomes li -1 on big-endian powerpc64

  backend:PowerPCgenerated by fuzzermiscompilation
  Bug

  llvm/llvm-project#241910 · Filter by author hazohelet opened on Nov 12, 2026
  1

• [PowerPC] wrong code at -O3: a 32-bit right shift by a constant becomes a left shift on big-endian powerpc64

  backend:PowerPCgenerated by fuzzermiscompilation
  Bug

  llvm/llvm-project#241904 · Filter by author hazohelet opened on Nov 12, 2026
  1

• [libc] strtod/strtof/strtold round incorrectly in directed rounding modes

  libc
  Bug

  llvm/llvm-project#241898 · Filter by author 0z5a opened on Nov 12, 2026
  1

• [libc++] binomial_distribution returns values outside [0, t] or never returns when t is the largest value of IntType

  libc++random
  Bug

  llvm/llvm-project#241897 · Filter by author 0z5a opened on Nov 12, 2026

• [flang] SCALE/IEEE_SCALB constant folding gives +Inf for SCALE(0.5, 128) and wrong subnormals for SCALE(1.5, -150)

  constant-foldingflangmiscompilation
  Bug

  llvm/llvm-project#241894 · Filter by author 0z5a opened on Nov 12, 2026

• [mlir][math] math-expand-ops computes math.ctlz wrongly for widths that are not a power of two

  mlir
  llvm/llvm-project#241891 · Filter by author 0z5a opened on Nov 12, 2026
  1

• [libc++] std::map::extract becomes quadratic with debug hardening

  hardeninglibc++
  llvm/llvm-project#241886 · Filter by author oltolm opened on Nov 12, 2026

• [PowerPC] sign extension of a _BitInt(33) argument truncated to int is dropped

  backend:PowerPCgenerated by fuzzermiscompilation
  Bug

  llvm/llvm-project#241885 · Filter by author hazohelet opened on Nov 12, 2026
  1

• [Flang] Matching BIND(C) types rejected in intrinsic assignment after separate module compilation

  flang
  llvm/llvm-project#241884 · Filter by author hartsw opened on Nov 12, 2026

• [LoongArch] wrong code: select between a _BitInt(16) value and a sign-extended _BitInt(8) value is sign-extended from bit 7

  backend:loongarchgenerated by fuzzermiscompilation
  Bug

  llvm/llvm-project#241868 · Filter by author hazohelet opened on Nov 12, 2026
  1

• [Demangle] D demangler prints __T template instances as plain names, and accepts broken ones

  new issue
  llvm/llvm-project#241867 · Filter by author r0ny123 opened on Nov 12, 2026

• [AArch64] wrong code at -O1: sign extension of a shifted 8-bit value is selected as sbfiz

  generated by fuzzerllvm:optimizations
  llvm/llvm-project#241864 · Filter by author hazohelet opened on Nov 12, 2026

• [ARM] "Constant Island pass failed to converge" on PGO compilation

  backend:ARM
  llvm/llvm-project#241863 · Filter by author mstorsjo opened on Nov 12, 2026
  1

  

• [clang-format] a lambda with a qualified trailing return type is split after :: when its body breaks a << chain with comments

  clang-format
  llvm/llvm-project#241859 · Filter by author aivazis opened on Nov 12, 2026
  1