Package com.tonic.analysis.ssa.lower

Lowering SSA back to bytecode: phi elimination, register allocation, scheduling and emission.

Class Summary

Class	Description
BytecodeEmitter	Emits JVM bytecode from IR instructions.
BytecodeLowerer	The lowering pipeline from SSA-form IR back to JVM bytecode.
CopyInfo	A phi copy's created SSA value and the block it was inserted in, used for register coalescing.
LocalVariableTableBuilder	A builder for a LocalVariableTable over the source-local model recorded during AST lowering (IRMethod.SourceLocal), taking slots from RegisterAllocator and scoping each entry to the blocks holding that local's defs and uses.
PhiEliminator	Eliminates phi functions by inserting copies in predecessor blocks, splitting critical edges where needed.
RegisterAllocator	Linear scan register allocator.
StackScheduler	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.
StackScheduler.ScheduledInstruction	One entry of the schedule - an instruction paired with the role it plays.

Enum Summary

Enum	Description
StackScheduler.ScheduleType	The role a scheduled entry plays - a synthesized local load or store, or the IR instruction itself.