VLIW compilation techniques in a superscalar environment
PLDI '94 Proceedings of the ACM SIGPLAN 1994 conference on Programming language design and implementation
DAISY: dynamic compilation for 100% architectural compatibility
Proceedings of the 24th annual international symposium on Computer architecture
An out-of-order execution technique for runtime binary translators
Proceedings of the eighth international conference on Architectural support for programming languages and operating systems
Binary translation and architecture convergence issues for IBM system/390
Proceedings of the 14th international conference on Supercomputing
Dynamo: a transparent dynamic optimization system
PLDI '00 Proceedings of the ACM SIGPLAN 2000 conference on Programming language design and implementation
Symbolic Debugging of Optimized Code
ACM Transactions on Programming Languages and Systems (TOPLAS)
Execution-Based Scheduling for VLIW Architectures
Euro-Par '99 Proceedings of the 5th International Euro-Par Conference on Parallel Processing
Proceedings of the international symposium on Code generation and optimization: feedback-directed and runtime optimization
Proceedings of the 36th annual IEEE/ACM International Symposium on Microarchitecture
Metadata driven memory optimizations in dynamic binary translator
Proceedings of the 3rd international conference on Virtual execution environments
Idempotent processor architecture
Proceedings of the 44th Annual IEEE/ACM International Symposium on Microarchitecture
Static analysis and compiler design for idempotent processing
Proceedings of the 33rd ACM SIGPLAN conference on Programming Language Design and Implementation
| Hi-index | 0.02 |
Maintaining precise exceptions is an important aspect of achieving full compatibility with a legacy architecture. While asynchronous exceptions can be deferred to an appropriate boundary in the code, synchronous exceptions must be taken when they occur. This introduces uncertainty into liveness analysis since processor state that is otherwise dead may be exposed when an exception handler is invoked. Previous systems either had to sacrifice full compatibility to achieve more freedom to perform optimization, use less aggressive optimization or rely on hardware support.In this work, we demonstrate how aggressive optimization can be used in conjunction with dynamic compilation without the need for specialized hardware. The approach is based on maintaining enough state to recompute the processor state when an unpredicted event such as a synchronous exception may make otherwise dead processor state visible. The transformations necessary to preserve precise exception capability can be performed in linear time.