Tracing just-in-time compilation with pointers to local variables
US8522222B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2010 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45516
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a trace optimizing engine may create an optimized trace of an operation segment of a software program. A memory may store a trace of an operation segment and an inherited stack frame from the operation segment. An optimizing trace compiler may resolve a local pointer of the operation segment to a memory object and insert a guard in the trace that invalidates the trace if the local pointer does not resolve to the memory object. A just in time compiler may receive in the trace a stack pointer to the inherited stack frame, move the stack pointer to create a storage space, and store an intermediate value for a local variable in a temporary variable in the storage space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.