How can you reduce no of passes in compiler?

Answer 1

In order to reduce the number of passes in a compiler, all symbols have to be fully declared and defined before they are referenced. That's assuming, of course, that you would want to write a single pass compiler to start with. Most current compilers are very good at what they do, and reinventing the wheel, other than for a computer science class, is meaningless.

Answer 2

Factors which influence the number of passes to be used in a particular compiler include:

• Available memory
• Speed and size of compiler
• Speed and size of object program
• Debugging features required
• Error detection and recovery techniques desired
• Effort spent writing the compiler

Answer 3

• The complexity of optimization: Compilers that conduct more complex optimization may need more passes to analyze and optimize the code.

• The complexity of the language: will determine how many passes a compiler needs to make in order to convert the source code into machine code.

• Memory restrictions: Some compilers might have to restrict the amount of memory utilized during compilation, which might necessitate breaking up the passes into more manageable, smaller portions.