LoadElimination.GVNPreparation (Jikes RVM API)

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org.jikesrvm.compilers.opt.ssa
Class LoadElimination.GVNPreparation

java.lang.Object
  org.jikesrvm.compilers.opt.driver.CompilerPhase
      org.jikesrvm.compilers.opt.ssa.LoadElimination.GVNPreparation

Enclosing class:: LoadElimination

public static class LoadElimination.GVNPreparation
extends CompilerPhase
extends CompilerPhase

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

Field Summary
`private static Constructor<CompilerPhase>`	`constructor` Constructor for this compiler phase
`private int`	`round`

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

Constructor Summary
`LoadElimination.GVNPreparation(int round)` Constructor

Method Summary
`Constructor<CompilerPhase>`	`getClassConstructor()` Get a constructor object for this compiler phase
`String`	`getName()`
`void`	`perform(IR ir)` This is the method that actually does the work of the phase.
`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

round

private final int round

constructor

private static final Constructor<CompilerPhase> constructor

Constructor for this compiler phase

Constructor Detail

LoadElimination.GVNPreparation

public LoadElimination.GVNPreparation(int round)

Constructor

Method Detail

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.

getClassConstructor

public Constructor<CompilerPhase> getClassConstructor()

Get a constructor object for this compiler phase

Overrides:: getClassConstructor in class CompilerPhase

Returns:: compiler phase constructor

perform

public final void perform(IR ir)