InstructionMask¶

public final class InstructionMask¶: A vectorial mask, used to guard vectorial instructions.

Fields¶

controlInstruction¶

public Instruction controlInstruction¶: The control of this mask. Control must be an expression Tree of type (array of) boolean. It is placed in an Instruction to allow all controlled Instructions to share any modification of this control.

enclosingMask¶

public InstructionMask enclosingMask¶: The enclosing mask level, if any.

isTrueBranch¶

public boolean isTrueBranch¶: When true, this mask designates the “then” where branch of its control, otherwise the “else” where branch.

Constructors¶

InstructionMask¶

public InstructionMask(Tree localControl, InstructionMask enclosingMask)¶: Create a mask level enclosed in enclosingMask, controlled by localControl.

Methods¶

copy¶

protected InstructionMask copy()¶

Returns: a copy of this mask, but the copy shares the controlInstruction.

createElseMask¶

public InstructionMask createElseMask()¶

Returns: a copy of this mask, sharing the controlInstruction, but designating the “else” branch.

depth¶

public int depth()¶

Returns: the depth of the enclosing mask levels.

dump¶

public void dump()¶: Prints in detail the contents of this InstructionMask, onto TapEnv.curOutputStream().

equalMasks¶

public static boolean equalMasks(InstructionMask mask1, InstructionMask mask2)¶

getControlTree¶

public Tree getControlTree()¶

Returns: the control Tree of this mask.

isEmpty¶

public boolean isEmpty()¶

Returns: true if this mask level is empty i.e. has no control.

rebuildTree¶

public Tree rebuildTree()¶

setControlTree¶

public void setControlTree(Tree tree)¶: Sets the control Tree of this mask.

toString¶

public String toString()¶