java.lang.Object | ||||
↳ | com.pnfsoftware.jeb.core.AbstractPlugin | |||
↳ | com.pnfsoftware.jeb.core.units.code.asm.decompiler.opt.AbstractOptimizer<T> | |||
↳ | com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.opt.AbstractEOptimizer | |||
↳ | com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.opt.AbstractEBlockOptimizer |
Skeleton for an IRE basic block
optimizer.
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AbstractEBlockOptimizer() | |||||||||||
AbstractEBlockOptimizer(DataChainsUpdatePolicy dataChainsUpdatePolicy) | |||||||||||
AbstractEBlockOptimizer(IERoutineContext ctx, DataChainsUpdatePolicy dataChainsUpdatePolicy) |
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int |
perform(boolean updateDFA)
Perform the optimization pass.
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abstract int |
optimizeBlock(BasicBlock<IEStatement> b)
Attempt to optimize a basic block.
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Perform the optimization pass. The caller may request that data chains not be updated, whenever possible. (They may be updated internally by the optimizer, which has the final say as to how and when DFA calculations should be run.)
The above means that data chains after running this method may or may not have been modified, and may or may not be in a consistent state with the optimized CFG.
Note: in what scenario would you want when to use perform(false) ? one example is to optimize performances when chain-calling optimizers in a master optimizer for example. TODO: describe one scenario in detail.
updateDFA | if true, update data chains according to the optimizer's policy; if false, the optimizer should not perform final DFA computations if needed |
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Attempt to optimize a basic block. All instruction in the block may be modified.
b | a basic block |
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