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| Content Provider | ACM Digital Library |
|---|---|
| Author | Zbarsky, Boris Eich, Brendan Anderson, David Kaplan, Blake Mandelin, David Haghighat, Mohammad R. Chang, Mason Smith, Edwin W. Hoare, Graydon Orendorff, Jason Franz, Michael Shaver, Mike Reitmaier, Rick Bebenita, Michael Gal, Andreas Ruderman, Jesse |
| Abstract | Dynamic languages such as JavaScript are more difficult to compile than statically typed ones. Since no concrete type information is available, traditional compilers need to emit generic code that can handle all possible type combinations at runtime. We present an alternative compilation technique for dynamically-typed languages that identifies frequently executed loop traces at run-time and then generates machine code on the fly that is specialized for the actual dynamic types occurring on each path through the loop. Our method provides cheap inter-procedural type specialization, and an elegant and efficient way of incrementally compiling lazily discovered alternative paths through nested loops. We have implemented a dynamic compiler for JavaScript based on our technique and we have measured speedups of 10x and more for certain benchmark programs. |
| Starting Page | 465 |
| Ending Page | 478 |
| Page Count | 14 |
| File Format | |
| ISSN | 03621340 15581160 |
| DOI | 10.1145/1543135.1542528 |
| Journal | ACM SIGPLAN Notices (SIGP) |
| Volume Number | 44 |
| Issue Number | 6 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1983-05-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dynamically typed languages Trace-based compilation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Graphics and Computer-Aided Design Software |
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