SSATuneUp.TuneUpPreparation (Jikes RVM API)

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org.jikesrvm.compilers.opt.ssa
Class SSATuneUp.TuneUpPreparation

java.lang.Object
  org.jikesrvm.compilers.opt.driver.CompilerPhase
      org.jikesrvm.compilers.opt.ssa.SSATuneUp.TuneUpPreparation

Enclosing class:: SSATuneUp

public static class SSATuneUp.TuneUpPreparation
extends CompilerPhase
extends CompilerPhase

This class sets up the IR state prior to entering SSA.

Field Summary
`private static Constructor<CompilerPhase>`	`constructor` Constructor for this compiler phase
`private CompilerPhase`	`dominators` Compiler phases necessary to re-build dominators and dominance frontier
`private CompilerPhase`	`frontier` Compiler phases necessary to re-build dominators and dominance frontier

Fields inherited from class org.jikesrvm.compilers.opt.driver.CompilerPhase
`container`

Constructor Summary
`SSATuneUp.TuneUpPreparation()`

Method Summary
`Constructor<CompilerPhase>`	`getClassConstructor()` Get a constructor object for this compiler phase
`String`	`getName()`
`void`	`perform(IR ir)` register in the IR the SSA properties we need for simple scalar optimizations
`boolean`	`shouldPerform(OptOptions options)` This method determines if the phase should be run, based on the Options object it is passed.

Methods inherited from class org.jikesrvm.compilers.opt.driver.CompilerPhase
`dumpIR, dumpIR, getCompilerPhaseConstructor, getCompilerPhaseConstructor, newExecution, performPhase, printingEnabled, reportAdditionalStats, setContainer, verify`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

dominators

private final CompilerPhase dominators

Compiler phases necessary to re-build dominators and dominance frontier

frontier

private final CompilerPhase frontier

Compiler phases necessary to re-build dominators and dominance frontier

constructor

private static final Constructor<CompilerPhase> constructor

Constructor for this compiler phase

Constructor Detail

SSATuneUp.TuneUpPreparation

public SSATuneUp.TuneUpPreparation()

Method Detail

getClassConstructor

public Constructor<CompilerPhase> getClassConstructor()

Get a constructor object for this compiler phase

Overrides:: getClassConstructor in class CompilerPhase

Returns:: compiler phase constructor

shouldPerform

public final boolean shouldPerform(OptOptions options)

Description copied from class: CompilerPhase

This method determines if the phase should be run, based on the Options object it is passed. By default, phases are always performed. Subclasses should override this method if they only want to be performed conditionally.

Overrides:: shouldPerform in class CompilerPhase

Parameters:: options - the compiler options for the compilation
Returns:: true if the phase should be performed

getName

public final String getName()

Specified by:: getName in class CompilerPhase

Returns:: a String which is the name of the phase.

perform

public final void perform(IR ir)

Specified by:: perform in class CompilerPhase

Parameters:: ir - the IR on which to apply the phase