Write some advantages & limitations of parses

Write some advantages & limitations of parses.

Pass: When one or more phases are combined into a module then the module is referred as pass. A pass is  read the source program to the output of the previous pas, makes the transformations specified by its phases & writes output into an intermediate file.

Advantages : 

• Reduced memory space.
• Requires less time.

Limitations of parses :- 

• The interface between the lexical & syntactic analyzer can often be limited to a single token.
• It is very hard to perform code generation until the intermediate representation has been completely generated.

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