dead-code-eliminator

Dead code elimination reduces binary size and improves performance by removing unreachable code blocks, unused variables, and uncalled functions. This compiler optimization pass cleans up intermediate code, making the final executable smaller and faster.

To eliminate unreachable code and dead variables in a compiler optimization pass, apply a dead code elimination skill to the intermediate code. It identifies live variables and critical instructions using dataflow and control flow analysis to remove unused computations.

Yes, you need dataflow analysis and control flow analysis to perform dead code elimination effectively. These analyses identify live variables and critical instructions, which are required to accurately determine which code segments and stores are truly unreachable or unused.

You should use dead code elimination for code minification during distribution and for post-inlining cleanup scenarios. It is applicable in compiler optimization passes to remove unreachable code segments and dead functions, significantly shrinking the final program size.