Understanding Error: Enzyme aligned size and Julia size disagree #999
Description
I've seen this error a few times while writing an Enzyme backend for SymbolicRegression.jl – MilesCranmer/SymbolicRegression.jl#254 – and I was just wondering what sort of issue it could indicate? I can't reproduce it reliably right now, unfortunately. This is on Julia 1.10-beta1, so perhaps it could be some unimplemented functionality for the latest Julia version.
┌ Error: Enzyme aligned size and Julia size disagree
│ AlignedSize = 2192
│ esizeof(TT) = 2136
│ fieldtypes(TT) = (Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, @NamedTuple{1, 2, 3, 4, 5::Bool, 6::UInt64, 7::Core.LLVMPtr{UInt64, 0}, 8::UInt64, 9::UInt64}, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, @NamedTuple{1, 2, 3, 4, 5, 6::NTuple{4, Float32}, 7::NTuple{4, Float32}, 8::NTuple{4, Float32}, 9::NTuple{4, Float32}, 10, 11::Core.LLVMPtr{UInt8, 0}, 12, 13, 14::UInt64, 15::UInt64, 16::UInt64, 17::UInt64, 18::UInt64, 19::Bool, 20::Float32, 21::UInt64, 22::Core.LLVMPtr{UInt8, 0}}, @NamedTuple{1, 2, 3, 4, 5, 6::NTuple{4, Float32}, 7::NTuple{4, Float32}, 8::NTuple{4, Float32}, 9::NTuple{4, Float32}, 10, 11::Core.LLVMPtr{UInt8, 0}, 12, 13, 14::UInt64, 15::UInt64, 16::UInt64, 17::UInt64, 18::UInt64, 19::Bool, 20::Float32, 21::UInt64, 22::Core.LLVMPtr{UInt8, 0}}, @NamedTuple{1, 2, 3, 4, 5, 6::NTuple{4, Float32}, 7::NTuple{4, Float32}, 8::NTuple{4, Float32}, 9::NTuple{4, Float32}, 10, 11::Core.LLVMPtr{UInt8, 0}, 12, 13, 14::UInt64, 15::UInt64, 16::UInt64, 17::UInt64, 18::UInt64, 19::Bool, 20::Float32, 21::UInt64, 22::Core.LLVMPtr{UInt8, 0}}, @NamedTuple{1, 2, 3, 4, 5, 6::NTuple{4, Float32}, 7::NTuple{4, Float32}, 8::NTuple{4, Float32}, 9::NTuple{4, Float32}, 10, 11::Core.LLVMPtr{UInt8, 0}, 12, 13, 14::UInt64, 15::UInt64, 16::UInt64, 17::UInt64, 18::UInt64, 19::Bool, 20::Float32, 21::UInt64, 22::Core.LLVMPtr{UInt8, 0}}, @NamedTuple{1, 2::UInt64}, Tuple{Core.LLVMPtr{UInt8, 0}, NTuple{4, Float32}, NTuple{4, Float32}, NTuple{4, Float32}, NTuple{4, Float32}, UInt64, Core.LLVMPtr{UInt8, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Vararg{NTuple{4, Float32}, 6}}, Tuple{Core.LLVMPtr{UInt8, 0}, NTuple{4, Float32}, NTuple{4, Float32}, NTuple{4, Float32}, NTuple{4, Float32}, UInt64, Core.LLVMPtr{UInt8, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Core.LLVMPtr{NTuple{4, Float32}, 0}, Vararg{NTuple{4, Float32}, 6}}, Any, Any, Any, Any, Any, Any, Any, @NamedTuple{1, 2::UInt64}, Any, Any, @NamedTuple{1, 2::UInt64}, Any, Any, @NamedTuple{1, 2::UInt64}, Any, @NamedTuple{1, 2::UInt64}, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, Any, @NamedTuple{1, 2, 3, 4, 5, 6, 7::UInt8, 8, 9, 10, 11::Bool}, @NamedTuple{1, 2, 3, 4, 5, 6, 7::UInt8, 8, 9, 10, 11::Bool}, UInt8, Any, UInt8, Any, Any, Any, Bool, Bool, UInt64, UInt64, UInt64, UInt8, UInt8, Any, Bool, UInt8, Any, Any, Bool, Bool, Bool, Any, Bool, UInt8, Bool, Bool, UInt8, Bool, Bool, Bool, Bool)
└ @ Enzyme.Compiler ~/.julia/packages/GPUCompiler/YO8Uj/src/utils.jl:56
Assertion failed: (isa<To>(Val) && "cast<Ty>() argument of incompatible type!"), function cast, file /opt/aarch64-apple-darwin20/aarch64-apple-darwin20/sys-root/usr/local/include/llvm/Support/Casting.h, line 578.I will update this if I can reproduce it reliably.