What are the various issues associated with grammars in Top-down parsing? Identify and resolve the issue(s) if any for the following grammar. EE+T|T TTF F F→ (E) | id Find the predictive parsing table for the given grammar. Show acceptance of the input string "id+id*id" using the constructed predictive parsing table.

Describe the operation of the compiler and the rationale for the need of testing it.

As such, I was curious as to which of the Compiler Phases you deem most crucial. It would be really helpful to see an example at each level of this structure.

In addition to defining "testability," please provide a brief overview of the compiler.