semanticpreservation
Semantic preservation is a property of a program transformation whereby the transformed program maintains the same externally observable behavior as the original. In compiler design and programming language theory, a transformation is semantically preserving if, for every valid input program, the transformed version exhibits the same results and interactions with its environment.
Observable behavior typically includes outputs, termination status, exceptions, and memory or I/O effects defined by the
Common examples of semantics-preserving transformations include constant folding and dead code elimination, provided the expressions involved
Proving semantic preservation usually relies on formal methods. One approach is to relate source and transformed
Limitations and caveats include languages with undefined behavior, memory models, or concurrency, where timing and resource