Issues

• Metal: large continuation dispatcher crashes MTLCompilerService in LLVM allocation

  bendlang/bend#1979 · Filter by author azide0x37 opened on Oct 31, 2026

• import: a segment starting with a digit is refused, but the error says digits are allowed

  bendlang/bend#1961 · Filter by author adeerkhan opened on Oct 30, 2026

• [complexity, checker] O(n^2) — Every recursive call proves the same argument is smaller again

  bendlang/bend#1960 · Filter by author pjcavalcanti opened on Oct 30, 2026

• [complexity, checker] O(n^2) — Comparing quantities reduces the same remaining expression again

  bendlang/bend#1957 · Filter by author pjcavalcanti opened on Oct 30, 2026

• [complexity, flattening, checker] O(n^2) — Checking a call copies its growing argument list each time

  bendlang/bend#1956 · Filter by author pjcavalcanti opened on Oct 30, 2026

• [complexity, checker] O(n^2 log n) — An empty match copies all variables before inspecting the first

  bendlang/bend#1955 · Filter by author pjcavalcanti opened on Oct 30, 2026

• Metal: standalone renderer fails with “a function the device does not hold”; CPU and interpreter agree

  bug
  bendlang/bend#1954 · Filter by author holmesworcester opened on Oct 30, 2026
  6

• C backend: parallel let with an owning call before a borrowing spin fails with multiple threads

  bug
  bendlang/bend#1953 · Filter by author holmesworcester opened on Oct 30, 2026
  3

• Base is re-parsed and re-checked for every book; the header-regex workarounds make --checkup and bend-lint accept programs bend rejects

  bendlang/bend#1941 · Filter by author nicolas-abril opened on Oct 29, 2026

• [complexity, checker] O(2^n) — Checking a returned type checks the same lambda again

  bendlang/bend#1940 · Filter by author pjcavalcanti opened on Oct 29, 2026
  1

• A read without the wrap mask for code that must pass --verdict: in an F32 4x4 tile, the mask is the whole 2.2x gap to C

  bendlang/bend#1936 · Filter by author Runiir opened on Oct 29, 2026

• Base: should Array state its own laws (set keeps the size, get after set, set leaves other cells alone)?

  bendlang/bend#1934 · Filter by author nuxyel opened on Oct 29, 2026

• Device: a lane runs up to 4096 steps on HEAP_OFF after a failed allocation (page faults on AMD)

  bendlang/bend#1924 · Filter by author nicolas-abril opened on Oct 28, 2026
  1

• 2.0.38 and 2.0.39 emit C that Apple clang 21 cannot compile ("live register clobbered by inserted prologue instructions"); 2.0.37 and main from #1817 build

  bendlang/bend#1914 · Filter by author jonasporto opened on Oct 28, 2026

• 2.0.38 added Event.Text to Base; a program with its own Text constructor is refused with "duplicate declaration: Text", and the notes do not say so

  bendlang/bend#1913 · Filter by author jonasporto opened on Oct 28, 2026
  1

• Process.open: a child's stdin and stdout as File handles

  bendlang/bend#1902 · Filter by author MattCozendey opened on Oct 28, 2026

• --verdict: a law instantiated with lambdas for a ~ function and a ~ proof about it is out of scope ("an application with no known head type"), though bend2 accepts it

  bug
  bendlang/bend#1897 · Filter by author jbrownson opened on Oct 27, 2026

• Fast Array Initialization

  enhancement
  bendlang/bend#1890 · Filter by author dmbarbour opened on Oct 27, 2026
  4

• Shorter syntax for laws

  enhancement
  bendlang/bend#1873 · Filter by author dcvz opened on Oct 26, 2026
  1

• Confusing (useless?) definition of "dead" code

  enhancement
  bendlang/bend#1852 · Filter by author jasoncarr0 opened on Oct 25, 2026
  1

• U32 order, conversion and division laws: in Base, or a hub package?

  bendlang/bend#1850 · Filter by author ajbarryiii opened on Oct 25, 2026
  1

• [Showcase & Feedback] AI Agent Governance & Capability Security in Bend 2.0.39 (8 Verified Theorems)

  bendlang/bend#1847 · Filter by author lbailey94 opened on Oct 24, 2026

• Python target: a first pass, preliminary results, and the comp.ts cap

  bendlang/bend#1827 · Filter by author AFDudley opened on Oct 22, 2026

• Device lane spill: a loop at the exact fill depth spills and restores the whole stack on every call (~200x slower)

  bendlang/bend#1790 · Filter by author Lorenzobattistela opened on Oct 20, 2026

• IO.model: a pure interpreter for laws about a program’s observable IO behavior

  bendlang/bend#1784 · Filter by author viridale opened on Oct 20, 2026