org.jikesrvm.compilers.opt.regalloc.ia32

Class RewriteMemoryOperandsWithOversizedDisplacements

java.lang.Object

org.jikesrvm.compilers.opt.driver.CompilerPhase

org.jikesrvm.compilers.opt.regalloc.ia32.RewriteMemoryOperandsWithOversizedDisplacements

public class RewriteMemoryOperandsWithOversizedDisplacements
extends CompilerPhase

Processes memory operands with a displacement that doesn't fit into 32 bits. This is only necessary on x64.

Field Summary

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

container

Constructor Summary

Constructors

Constructor and Description
RewriteMemoryOperandsWithOversizedDisplacements()

Method Summary

Modifier and Type	Method and Description
private static void	disp64MemOperandConversion(IR ir, Instruction inst, MemoryOperand mo)
String	getName()
CompilerPhase	newExecution(IR ir) This method is called immediately before performPhase.
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, getClassConstructor, getCompilerPhaseConstructor, getCompilerPhaseConstructor, performPhase, printingEnabled, reportAdditionalStats, setContainer, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RewriteMemoryOperandsWithOversizedDisplacements

public RewriteMemoryOperandsWithOversizedDisplacements()

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 String getName()

Specified by:

getName in class CompilerPhase

Returns:

a String which is the name of the phase.

perform

public void perform(IR ir)

Description copied from class: CompilerPhase

This is the method that actually does the work of the phase.

Specified by:

perform in class CompilerPhase

Parameters:

ir - the IR on which to apply the phase

newExecution

public CompilerPhase newExecution(IR ir)

Description copied from class: CompilerPhase

This method is called immediately before performPhase. Phases that do not need to create a new instance for each execution may override this method to return this, but this must be done carefully! Classes that don't override this method need to override getClassConstructor.

Overrides:

newExecution in class CompilerPhase

Parameters:

ir - the IR that is about to be passed to performPhase

Returns:

an opt compiler phase on which performPhase may be invoked.

disp64MemOperandConversion

private static void disp64MemOperandConversion(IR ir,
                                               Instruction inst,
                                               MemoryOperand mo)