Module opcode 

Available on crate feature bytecode only.

Bytecode opcodes for the bytecode tape.

Each opcode represents an elementary operation. The eval_forward and reverse_partials functions evaluate / differentiate a single opcode.

Enums

OpCode

Elementary operation codes for the bytecode tape.

Constants

UNUSED

Sentinel used in arg_indices[1] for unary ops (the second argument slot is unused).

Functions

eval_forward

Evaluate a single opcode in the forward direction.

forced_reverse_partials

Compute reverse-mode partials with a forced branch choice for nonsmooth ops.

has_nontrivial_subdifferential

Returns true if forced branch choices produce distinct partial derivatives.

is_nonsmooth

Returns true if this opcode is a nonsmooth operation.

powi_exp_decode_raw

Decode a powi exponent directly from the raw u32 in arg_indices[1].

powi_exp_encode

Encode a powi exponent as a value that can be stored in arg_indices[1].

reverse_partials

Compute reverse-mode partial derivatives for a single opcode.