Swizzler

java.lang.Object
- EDU.purdue.cs.bloat.tree.Swizzler

```
public class Swizzler
extends java.lang.Object
```
Swizzler represents an induction variable that is used as an index into an array. Analysis can be done to determine if array swizzle (aswizzle) instruction(s) can be hoisted out of the loop.

See Also:

InductionVarAnalyzer

Constructor Summary

Constructors
Constructor Description

Swizzler(Expr var, Expr tgt, Expr val, Block phiblock)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Expr`	`array()`
`SCStmt`	`aswizzle()`
`Expr`	`end_val()`
`Expr`	`ind_var()`
`Expr`	`init_val()`
`Block`	`phi_block()`
`void`	`set_array(Expr a)`
`void`	`set_aswizzle(SCStmt sc)`
`void`	`set_end_val(Expr end)`	Sets the ending value for the induction variable.
`Expr`	`target()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Swizzler
```
public Swizzler(Expr var,
                Expr tgt,
                Expr val,
                Block phiblock)
```
    Constructor.
    
    Parameters:
    
    var - Induction variable. (An index variable for an array.)
    
    tgt - Target of the phi statement that defines the induction variable.
    
    val - Initial value of the induction variable.
    
    phiblock - The block in which the phi statement resides.
- Method Detail
  - set_end_val
```
public void set_end_val(Expr end)
```
    Sets the ending value for the induction variable.
    
    Parameters:
    
    end - The final value the induction variable will take on.
  - set_array
```
public void set_array(Expr a)
```
    Parameters:
    
    a - The array that is indexed by the induction variable.
  - set_aswizzle
```
public void set_aswizzle(SCStmt sc)
```
    Parameters:
    
    sc - The aswizzle statement that could be removed from the block.
  - ind_var
```
public Expr ind_var()
```
  - target
```
public Expr target()
```
  - init_val
```
public Expr init_val()
```
  - end_val
```
public Expr end_val()
```
  - array
```
public Expr array()
```
  - phi_block
```
public Block phi_block()
```
  - aswizzle
```
public SCStmt aswizzle()
```