Abstract: A processing architecture supports executing instructions in parallel after identifying at least one level of dependency associated with a set of traces within a segment of code. Each trace represents a sequence of logical instructions within the segment of code that can be executed in a corresponding operand stack. Scheduling information is generated based on a dependency order identified among the set of traces. Thus, multiple traces may be scheduled for parallel execution unless a dependency order indicates that a second trace is dependent upon a first trace. In this instance, the first trace is executed prior to the second trace. Trace dependencies may be identified at run-time as well as prior to execution of traces in parallel. Results associated with execution of a trace are stored in a temporary buffer (instead of memory) until after it is known that a data dependency was not detected at run-time.

Abstract: A system, method and apparatus for executing instructions in parallel identify a set of traces within a segment of code, such as Java bytecode. Each trace represents a sequence of instructions within the segment of code that are execution structure dependent, such as stack dependent. The system, method and apparatus identify a dependency order between traces in the identified set of traces. The dependency order indicates traces that are dependent upon operation of other traces in the segment of code. The system, method and apparatus can then execute traces within the set of traces in parallel and in an execution order that is based on the identified dependency order, such that at least two traces are executed in parallel and such that if the dependency order indicates that a second trace is dependent upon a first trace, the first trace is executed prior to the second trace.