StackScheduler (YABR)

tonic@yabr:~$ Source Portfolio tonicbox.dev

java.lang.Object
- com.tonic.analysis.ssa.lower.StackScheduler

```
public class StackScheduler
extends Object
```
A linearizer that walks the IR blocks in order and produces a flat schedule of loads, stores and executions, tracking the peak operand stack depth as it goes.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`StackScheduler.ScheduledInstruction`	One entry of the schedule - an instruction paired with the role it plays.
`static class`	`StackScheduler.ScheduleType`	The role a scheduled entry plays - a synthesized local load or store, or the IR instruction itself.

Constructor Summary

Constructors
Constructor Description

StackScheduler(IRMethod method, RegisterAllocator regAlloc)
Creates a scheduler over one method and its register allocation.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getMaxStack()`
`IRMethod`	`getMethod()`
`RegisterAllocator`	`getRegAlloc()`
`List<StackScheduler.ScheduledInstruction>`	`getSchedule()`
`void`	`schedule()`	Schedules every block in order, appending to the existing schedule and updating the peak stack depth.

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

- Constructor Detail
  - StackScheduler
```
public StackScheduler(IRMethod method,
                      RegisterAllocator regAlloc)
```
    Creates a scheduler over one method and its register allocation.
    
    Parameters:
    
    method - the method to schedule
    
    regAlloc - allocation supplying the slot for each value that needs a load or store
- Method Detail
  - getMethod
```
public IRMethod getMethod()
```
    Returns:
    
    the method
  - getRegAlloc
```
public RegisterAllocator getRegAlloc()
```
    Returns:
    
    the reg alloc
  - getSchedule
```
public List<StackScheduler.ScheduledInstruction> getSchedule()
```
    Returns:
    
    the schedule
  - getMaxStack
```
public int getMaxStack()
```
    Returns:
    
    the max stack
  - schedule
```
public void schedule()
```
    Schedules every block in order, appending to the existing schedule and updating the peak stack depth.