89615 2012-06-20 16:41:42 -0700 Functions on global objects should be specializable 2012-06-20 16:55:39 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) All All RESOLVED FIXED P2 Normal --- 33343 1 fpizlo fpizlo barraclough fpizlo ggaren oliver oldest_to_newest 654000 0 fpizlo 2012-06-20 16:41:42 -0700 This will allow us to better optimize things like "new Array()". Patch forthcoming. 654001 1 fpizlo 2012-06-20 16:42:41 -0700 Note that this is related to bug https://bugs.webkit.org/show_bug.cgi?id=33343. The fix for that bug involved both introducing a thrash limit and disabling specialization entirely for the global object. I believe that we can reenable specialization, since the thrash limit is so low. 654011 2 148679 fpizlo 2012-06-20 16:53:00 -0700 Created attachment 148679 the patch 654015 3 fpizlo 2012-06-20 16:55:39 -0700 Landed in http://trac.webkit.org/changeset/120886 148679 2012-06-20 16:53:00 -0700 2012-06-20 16:54:22 -0700 the patch globalobjspec_patch_1.diff text/plain 1565 fpizlo SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMTIwODg1KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE3IEBA CisyMDEyLTA2LTIwICBGaWxpcCBQaXpsbyAgPGZwaXpsb0BhcHBsZS5jb20+CisKKyAgICAgICAg RnVuY3Rpb25zIG9uIGdsb2JhbCBvYmplY3RzIHNob3VsZCBiZSBzcGVjaWFsaXphYmxlCisgICAg ICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD04OTYxNQorCisgICAg ICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorICAgICAgICAKKyAgICAgICAgSSB0ZXN0 ZWQgdG8gc2VlIGlmIHRoaXMgYnJvdWdodCBiYWNrIHRoZSBidWcgaW4gaHR0cHM6Ly9idWdzLndl YmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTMzMzQzLAorICAgICAgICBhbmQgaXQgZGlkbid0LiBC dWcgMzMzNDMgd2FzIHRoZSByZWFzb24gd2h5IHdlIGRpc2FibGVkIGdsb2JhbCBvYmplY3QgZnVu Y3Rpb24gc3BlY2lhbGl6YXRpb24KKyAgICAgICAgdG8gYmVnaW4gd2l0aC4gU28gSSdtIGd1ZXNz aW5nIHRoaXMgaXMgc2FmZS4KKworICAgICAgICAqIHJ1bnRpbWUvSlNHbG9iYWxPYmplY3QuY3Bw OgorICAgICAgICAoSlNDOjpKU0dsb2JhbE9iamVjdDo6aW5pdCk6CisKIDIwMTItMDYtMjAgIEZp bGlwIFBpemxvICA8ZnBpemxvQGFwcGxlLmNvbT4KIAogICAgICAgICBidWlsZC13ZWJraXQgZmFp bHVyZSBkdWUgdG8gaWxsZWdhbCAzMi1iaXQgaW50ZWdlciBjb25zdGFudHMgaW4gY29kZQpJbmRl eDogU291cmNlL0phdmFTY3JpcHRDb3JlL3J1bnRpbWUvSlNHbG9iYWxPYmplY3QuY3BwCj09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT0KLS0tIFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9ydW50aW1lL0pTR2xvYmFsT2JqZWN0LmNw cAkocmV2aXNpb24gMTIwODc4KQorKysgU291cmNlL0phdmFTY3JpcHRDb3JlL3J1bnRpbWUvSlNH bG9iYWxPYmplY3QuY3BwCSh3b3JraW5nIGNvcHkpCkBAIC0xMzIsOCArMTMyLDYgQEAgdm9pZCBK U0dsb2JhbE9iamVjdDo6aW5pdChKU09iamVjdCogdGhpcwogewogICAgIEFTU0VSVChKU0xvY2s6 OmN1cnJlbnRUaHJlYWRJc0hvbGRpbmdMb2NrKCkpOwogICAgIAotICAgIHN0cnVjdHVyZSgpLT5k aXNhYmxlU3BlY2lmaWNGdW5jdGlvblRyYWNraW5nKCk7Ci0KICAgICBtX2dsb2JhbFNjb3BlQ2hh aW4uc2V0KGdsb2JhbERhdGEoKSwgdGhpcywgU2NvcGVDaGFpbk5vZGU6OmNyZWF0ZSgwLCB0aGlz LCAmZ2xvYmFsRGF0YSgpLCB0aGlzLCB0aGlzVmFsdWUpKTsKIAogICAgIEpTR2xvYmFsT2JqZWN0 OjpnbG9iYWxFeGVjKCktPmluaXQoMCwgMCwgbV9nbG9iYWxTY29wZUNoYWluLmdldCgpLCBDYWxs RnJhbWU6Om5vQ2FsbGVyKCksIDAsIDApOwo=