| 发明名称 | Self-optimizing interpreter and snapshot compilation | ||
| 摘要 | A method for a compiler includes receiving, by the compiler and from an interpreter, a representation of a code section having a control path that changes the representation. The representation has profiling data, and the profiling data has a threshold. The method further includes performing, by the compiler and based on the threshold, a partial evaluation of the interpreter executing the representation, compiling, by the compiler, a machine code of the representation, with the control path replaced by a deoptimization point during the compilation of the machine code, triggering the deoptimization point during execution of the machine code, and returning execution to the interpreter based on the triggering. | ||
| 申请公布号 | US8930920(B2) | 申请公布日期 | 2015.01.06 |
| 申请号 | US201213731698 | 申请日期 | 2012.12.31 |
| 申请人 | Oracle International Corporation | 发明人 | Wuerthinger Thomas;Simon Douglas Norman;Wimmer Christian;Stadler Lukas;Duboscq Gilles Marie |
| 分类号 | G06F9/45;G06F9/455 | 主分类号 | G06F9/45 |
| 代理机构 | Osha Liang LLP | 代理人 | Osha Liang LLP |
| 主权项 | 1. A method for a compiler, comprising: receiving, by the compiler and from an interpreter, a representation of a code section having a control path that changes the representation, wherein the representation is an abstract syntax tree (AST) comprising a plurality of nodes, each of the plurality of nodes storing associated profiling data, and wherein the profiling data comprises a threshold; compiling, by the compiler, a machine code of the representation by: performing, based on the threshold, a partial evaluation of the interpreter executing the representation,wherein the control path is replaced with a deoptimization point during compilation of the machine code; triggering the deoptimization point during execution of the machine code; and returning execution to the interpreter based on the triggering. | ||
| 地址 | Redwood Shores CA US | ||