Enzyme errors on simple example from documentation

[mrarat]

The code below is an example from Enzyme docs:

using Enzyme

rosenbrock_inp(x) = (1.0 - x[1])^2 + 100.0 * (x[2] - x[1]^2)^2

gradient(ReverseWithPrimal, rosenbrock_inp, [1.0, 2.0])

The code above results in an error:

ERROR: UndefVarError: `scoped_no_alias_aa!` not defined in `Enzyme.Compiler`
Suggestion: check for spelling errors or missing imports.
Stacktrace:
  [1] (::Enzyme.Compiler.var"#optimize!##0#optimize!##1"{LLVM.Module, LLVM.TargetMachine})(pm::LLVM.ModulePassManager)
    @ Enzyme.Compiler C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler\optimize.jl:460
  [2] LLVM.ModulePassManager(::Enzyme.Compiler.var"#optimize!##0#optimize!##1"{…}; kwargs::@Kwargs{})
    @ LLVM C:\Users\user\.julia\packages\LLVM\iza6e\src\passmanager.jl:33
  [3] ModulePassManager
    @ C:\Users\user\.julia\packages\LLVM\iza6e\src\passmanager.jl:30 [inlined]
  [4] optimize!(mod::LLVM.Module, tm::LLVM.TargetMachine)
    @ Enzyme.Compiler C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler\optimize.jl:455
  [5] compile_unhooked(output::Symbol, job::GPUCompiler.CompilerJob{…})
    @ Enzyme.Compiler C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler.jl:4771
  [6] compile(target::Symbol, job::GPUCompiler.CompilerJob; kwargs::@Kwargs{})
    @ GPUCompiler C:\Users\user\.julia\packages\GPUCompiler\Gp8bZ\src\driver.jl:67
  [7] compile
    @ C:\Users\user\.julia\packages\GPUCompiler\Gp8bZ\src\driver.jl:55 [inlined]
  [8] _thunk(job::GPUCompiler.CompilerJob{…}, postopt::Bool)
    @ Enzyme.Compiler C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler.jl:5956
  [9] _thunk
    @ C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler.jl:5954 [inlined]
 [10] cached_compilation
    @ C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler.jl:6011 [inlined]
 [11] thunkbase(mi::Core.MethodInstance, World::UInt64, FA::Type{…}, A::Type{…}, TT::Type, Mode::Enzyme.API.CDerivativeMode, width::Int64, ModifiedBetween::NTuple{…} where N, ReturnPrimal::Bool, ShadowInit::Bool, ABI::Type, ErrIfFuncWritten::Bool, RuntimeActivity::Bool, StrongZero::Bool, edges::Vector{…})
    @ Enzyme.Compiler C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler.jl:6127
 [12] thunk_generator(world::UInt64, source::Union{…}, FA::Type, A::Type, TT::Type, Mode::Enzyme.API.CDerivativeMode, Width::Int64, ModifiedBetween::NTuple{…} where N, ReturnPrimal::Bool, ShadowInit::Bool, ABI::Type, ErrIfFuncWritten::Bool, RuntimeActivity::Bool, StrongZero::Bool, self::Any, fakeworld::Any, fa::Type, a::Type, tt::Type, mode::Type, width::Type, modifiedbetween::Type, returnprimal::Type, shadowinit::Type, abi::Type, erriffuncwritten::Type, runtimeactivity::Type, strongzero::Type)
    @ Enzyme.Compiler C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\compiler.jl:6271
 [13] autodiff
    @ C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\Enzyme.jl:502 [inlined]
 [14] autodiff
    @ C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\Enzyme.jl:542 [inlined]
 [15] macro expansion
    @ C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\sugar.jl:336 [inlined]
 [16] gradient(::ReverseMode{true, false, false, FFIABI, false, false}, ::typeof(rosenbrock_inp), ::Vector{Float64})
    @ Enzyme C:\Users\user\.julia\packages\Enzyme\Ah2fT\src\sugar.jl:273
 [17] top-level scope
    @ c:\Code\MWE\Enzyme_SimpleCrash\src2.jl:5
Some type information was truncated. Use `show(err)` to see complete types.

julia> versioninfo()
Julia Version 1.12.1
Commit ba1e628ee4 (2025-10-17 13:02 UTC)
Build Info:
  Official https://julialang.org release
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: 14 × Intel(R) Core(TM) Ultra 7 165U
  WORD_SIZE: 64
  LLVM: libLLVM-18.1.7 (ORCJIT, alderlake)
  GC: Built with stock GC
Threads: 10 default, 1 interactive, 10 GC (on 14 virtual cores)
Environment:
  JULIA_EDITOR = code
  JULIA_VSCODE_REPL = 1
  JULIA_NUM_THREADS = 10

(Enzyme_SimpleCrash) pkg> st
Status `C:\Code\MWE\Enzyme_SimpleCrash\Project.toml`
  [7da242da] Enzyme v0.13.90

[mrarat]

I did run this code also on another Windows machine with Julia 1.12 and it resulted with the same error, so it should not be limited just to this specific computer/hardware.

[vchuravy]

Enzyme does not yet support 1.12