EnzymeAD/Enzyme

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High-performance automatic differentiation of LLVM and MLIR.

Stars: 1.7k
Forks: 188
Open beginner issues: 0
Indexed issues: 209
Avg merge: 2d 4h
Merged PRs (30d): 22

Dominant language: LLVM
License: No license data
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

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209 open issues indexed

Caching potentially causes intermittent segfault Open

EnzymeAD/Enzyme#2774 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
error: no libcall available for flog error Open

EnzymeAD/Enzyme#2775 · 0 comments · 1 reaction · 2 assignees · Indexed Sep 15, 2026
Feature request: Allow `-enzyme-auto-sparsity=1` to successfully compile if the Jacobian is null Open

EnzymeAD/Enzyme#2778 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect number of arguments passed to called function! call void @llvm.nvvm.barrier.cta.sync.aligned.all() Open

EnzymeAD/Enzyme#2784 · 0 comments · 1 reaction · 2 assignees · Indexed Sep 15, 2026
Heap corruption issue when having a std::vector within a struct. Open

EnzymeAD/Enzyme#2789 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
memref.alloca_scope and its teminator memref.alloca_scope.return does not register reverse mode AD Open

reverse mode

EnzymeAD/Enzyme#2791 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Batch an MLIR Region Open

EnzymeAD/Enzyme#2792 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
crash at GradientUtils::invertPointerM Open

EnzymeAD/Enzyme#2794 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Cannot select: 0x6fe5990: f32,ch = AtomicLoadFAdd for clang19+ Open

EnzymeAD/Enzyme#2796 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Problem compiling simple function using Eigen Open

EnzymeAD/Enzyme#2804 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Enzyme is not aware of Fortran descriptors Open

enhancement fortran

EnzymeAD/Enzyme#2822 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
incorrect result - batchmode Open

EnzymeAD/Enzyme#2831 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Enzyme generates undef-fed tape PHIs for packed-state nested guard reproducer Open

EnzymeAD/Enzyme#2834 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
NaN Hessian for saturated `tanh` when computing Hessian Open

EnzymeAD/Enzyme#2836 · 1 comment · 1 reaction · 2 assignees · Indexed Sep 15, 2026
cblas_dgemm fails to compile Open

EnzymeAD/Enzyme#2842 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
llvm.threadlocal address support Open

EnzymeAD/Enzyme#2843 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Unsupported operators when differentiating `std::complex` operations Open

EnzymeAD/Enzyme#2845 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[MLIR] MLIREnzymeAnalysis fails to build: getSuccessorInputs removed in current MLIR Open

EnzymeAD/Enzyme#2858 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
CUDA reverse cache malloc is marked nonnull and can cause illegal memory access Open

EnzymeAD/Enzyme#2871 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Leak in forward-over-reverse AD through stack-array loop Open

EnzymeAD/Enzyme#2914 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add LFortran to CI workflow Open

CI fortran

EnzymeAD/Enzyme#2916 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Cannot deduce type of aggregate phi for small float struct Open

EnzymeAD/Enzyme#2931 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MLIR: width-forward AD mishandles zero-operand derivative constants Open

EnzymeAD/Enzyme#2961 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Segfault on O0 and error on O1 Open

fortran

EnzymeAD/Enzyme#2966 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[MLIR] Min cut on a multi-result op Open

EnzymeAD/Enzyme#2979 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
C++ __enzyme_autodiff modifying arguements in unexpected ways Open

EnzymeAD/Enzyme#2994 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`__enzyme_batch` over a function containing `__enzyme_fwddiff` returns wrong values Open

EnzymeAD/Enzyme#3003 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Fortran: No forward mode derivative found for _FortranAAssign Open

fortran

EnzymeAD/Enzyme#3008 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Allow non-vectorized function arguments in Batch Open

EnzymeAD/Enzyme#3016 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Refactor: `gutils->originalToNewFnOps` to be replaced with `gutils->originalToNewFn` Open

EnzymeAD/Enzyme#3019 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
function failed verification Open

EnzymeAD/Enzyme#3028 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
PHI nodes not grouped at top of basic block Open

EnzymeAD/Enzyme#3029 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[MLIR] Nested affine loop differentiation may not be affine due to pop cache Open

EnzymeAD/Enzyme#3031 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[MLIR] Loop invariant cache generalization Open

EnzymeAD/Enzyme#3032 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
void GradientUtils::computeMinCache(): Assertion `legalRecompute(V, Available2, nullptr)' failed Open

EnzymeAD/Enzyme#3040 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Assertion `DT.dominates(RHead, LHead) && "No dominance between recurrences used by one SCEV?" Open

EnzymeAD/Enzyme#3043 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Set up fpm as alternative build system Open

fortran

EnzymeAD/Enzyme#3063 · 1 comment · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Add CI jobs for more recent versions of flang Open

CI fortran

EnzymeAD/Enzyme#3067 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
C++ autodiff modifying const objects Open

EnzymeAD/Enzyme#3073 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Hessian failure, enzyme_const global unrecognzied(?) Open

EnzymeAD/Enzyme#3082 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve fortran type analysis with seeding Open

fortran

EnzymeAD/Enzyme#3083 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Please replace ExternalProject_Add with git submodules Open

EnzymeAD/Enzyme#3106 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MLIR reverse mode: cache overwritten arguments so calls to memory-writing callees can be differentiated Open

EnzymeAD/Enzyme#3109 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
assertion cast<Ty>() argument of incompatible type! Open

EnzymeAD/Enzyme#3128 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
mlir: Improve checkpoint slice size Open

EnzymeAD/Enzyme#3129 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Flang plugin doesn't raise an error with `-O0` and intrinsics Open

bug fortran

EnzymeAD/Enzyme#3138 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MLIR dataflow activity: a dup pointer used only through an aggregate is treated as inactive Open

EnzymeAD/Enzyme#3142 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
mlir: Online checkpointing implementation Open

EnzymeAD/Enzyme#3143 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add Fortran to Enzyme Explorer Open

fortran

EnzymeAD/Enzyme#3146 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
LLDEnzyme with CUDA Open

EnzymeAD/Enzyme#3150 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026

EnzymeAD/Enzyme

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