com.oracle.graal.lir

Interface SwitchStrategy.SwitchClosure

All Known Implementing Classes:

SwitchStrategy.BaseSwitchClosure, SwitchStrategy.EffortClosure

Enclosing class:

SwitchStrategy

private static interface SwitchStrategy.SwitchClosure

Method Summary

Modifier and Type	Method and Description
void	bind(Label label) Binds a label returned by conditionalJump(int, Condition).
Label	conditionalJump(int index, Condition condition) Create a new label and generate a conditional jump to it.
void	conditionalJump(int index, Condition condition, boolean defaultTarget) Generates a conditional or unconditional jump.
void	conditionalJumpOrDefault(int index, Condition condition, boolean canFallThrough) Generates a conditional jump to the target with the specified index.
boolean	isSameTarget(int index1, int index2) Return true iff the target of both indexes is the same.

Method Detail

conditionalJump

void conditionalJump(int index,
                     Condition condition,
                     boolean defaultTarget)

Generates a conditional or unconditional jump. The jump will be unconditional if condition is null. If defaultTarget is true, then the jump will go the the default.

Parameters:

index - Index of the value and the jump target (only used if defaultTarget == false)

condition - The condition on which to jump (can be null)

defaultTarget - true if the jump should go to the default target, false if index should be used.

conditionalJumpOrDefault

void conditionalJumpOrDefault(int index,
                              Condition condition,
                              boolean canFallThrough)

Generates a conditional jump to the target with the specified index. The fall through should go to the default target.

Parameters:

index - Index of the value and the jump target

condition - The condition on which to jump

canFallThrough - true if this is the last instruction in the switch statement, to allow for fall-through optimizations.

conditionalJump

Label conditionalJump(int index,
                      Condition condition)

Create a new label and generate a conditional jump to it.

Parameters:

index - Index of the value and the jump target

condition - The condition on which to jump

Returns:

a new Label

bind

void bind(Label label)

Binds a label returned by conditionalJump(int, Condition).

isSameTarget

boolean isSameTarget(int index1,
                     int index2)

Return true iff the target of both indexes is the same.