Short answer: yes. Longer answer: mostly. The jit-test harness, currently part of |make check| and run under |B| on most TBPL builders, runs each test in a large number of different configurations, including the ones you are inquiring about: --baseline-eager, --ion-eager, and --baseline-eager --ion-eager. We would like to also run the jstests and jsapi-tests harnesses in these configurations, but that is not implemented at present.
Cheers, Terrence ----- Original Message ----- From: "David Bruant" <bruan...@gmail.com> To: "JS Internals list" <dev-tech-js-engine-internals@lists.mozilla.org> Sent: Sunday, August 11, 2013 6:00:48 AM Subject: [JS-internals] Conformance testing of "the" JavaScript engine(s?) Hi, In advance, I apologize if my question is naive or stupid but I couldn't find the answer simply (or figure out why it would be a wriong question). There are "official" conformance tests [1] and "SpiderMonkey" also has its own form of conformance and regression tests. I quote "SpiderMonkey" (and "the" in the title), because I feel that this wording oversimplifies the situation. JavaScript code first runs in an interpreter where warmth measurements are gathered. When code is warm, it's compiled* to more efficient machine code. If hot, it's compiled* again to something even more efficient. Both compilation steps (*) generate a new source code and this transformation step may include bugs. In essence, within SpiderMonkey, there are 3 JavaScript engines: the interpreter, the "warm code" compiler and the "hot code" compiler. (maybe 4 if you count the SpiderMonkey combination) And I was wondering if conformance and regression tests were run against all 3-4 engines (since each compilation step may introduce its own bugs) or whether only the combination was tested. I imagine that when I run [1], only the conformance of the interpreter is tested, because no test really have time to become warm or hot (not even the test harness since it's injected in a new iframe for each test for good reasons). David [1] http://test262.ecmascript.org/# _______________________________________________ dev-tech-js-engine-internals mailing list dev-tech-js-engine-internals@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-tech-js-engine-internals _______________________________________________ dev-tech-js-engine-internals mailing list dev-tech-js-engine-internals@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-tech-js-engine-internals
