org.graalvm.compiler.lir.gen

Class PhiResolver

java.lang.Object

org.graalvm.compiler.lir.gen.PhiResolver

public class PhiResolver
extends Object

Converts phi instructions into moves. Resolves cycles:

  r1 := r2  becomes  temp := r1
  r2 := r1           r1 := r2
                     r2 := temp
 

and orders moves:

  r2 := r3  becomes  r1 := r2
  r1 := r2           r2 := r3
 

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PhiResolver(LIRGeneratorTool gen, LIRInsertionBuffer buffer, List<LIRInstruction> instructions, int insertBefore)

Method Summary

Modifier and Type	Method and Description
static PhiResolver	create(LIRGeneratorTool gen)
static PhiResolver	create(LIRGeneratorTool gen, LIRInsertionBuffer buffer, List<LIRInstruction> instructions, int insertBefore)
void	dispose()
void	move(Value dest, Value src)

Methods inherited from class java.lang.Object

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

Constructor Detail

PhiResolver

protected PhiResolver(LIRGeneratorTool gen,
                      LIRInsertionBuffer buffer,
                      List<LIRInstruction> instructions,
                      int insertBefore)

Method Detail

create

public static PhiResolver create(LIRGeneratorTool gen)

create

public static PhiResolver create(LIRGeneratorTool gen,
                                 LIRInsertionBuffer buffer,
                                 List<LIRInstruction> instructions,
                                 int insertBefore)

dispose

public void dispose()

move

public void move(Value dest,
                 Value src)