69215 2011-10-01 12:27:34 -0700 Support string length in the DFG 2011-10-01 14:46:42 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 oliver oliver oldest_to_newest 476585 0 oliver 2011-10-01 12:27:34 -0700 Support string length in the DFG 476586 1 109406 oliver 2011-10-01 12:31:39 -0700 Created attachment 109406 Patch 476595 2 109406 ggaren 2011-10-01 14:28:44 -0700 Comment on attachment 109406 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=109406&action=review r=me > Source/JavaScriptCore/dfg/DFGPropagator.cpp:715 > if (!isInt32Prediction(m_predictions[m_compileIndex])) > break; Not super important, but I think you're guaranteed to have an int once you have an array / string .length property. > Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp:1730 > + speculationCheck(m_jit.branch32(MacroAssembler::LessThan, resultGPR, MacroAssembler::TrustedImm32(0))); I believe we could remove this branch, and the branch on array length access, if we changed array and string length to int from unsigned, and limited their lengths to 2^31-1. 476596 3 oliver 2011-10-01 14:46:42 -0700 Committed r96461 109406 2011-10-01 12:31:39 -0700 2011-10-01 14:28:44 -0700 Patch bug-69215-20111001123149.patch text/plain 7802 oliver U3VidmVyc2lvbiBSZXZpc2lvbjogOTY0NTcKZGlmZiAtLWdpdCBhL1NvdXJjZS9KYXZhU2NyaXB0 Q29yZS9DaGFuZ2VMb2cgYi9Tb3VyY2UvSmF2YVNjcmlwdENvcmUvQ2hhbmdlTG9nCmluZGV4IGY3 MTVjMjQxZDVhMGQ1MzlmYTQyZjg0NDkwYzU5ZGIzZDRjZjhmYWEuLmVkMDQxZTc1ZmI4OTFlOGUw MGVmMzQxYmNkYWMwYzZlZDU2ODNiZTggMTAwNjQ0Ci0tLSBhL1NvdXJjZS9KYXZhU2NyaXB0Q29y ZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwpAQCAtMSwz ICsxLDI3IEBACisyMDExLTEwLTAxICBPbGl2ZXIgSHVudCAgPG9saXZlckBhcHBsZS5jb20+CisK KyAgICAgICAgU3VwcG9ydCBzdHJpbmcgbGVuZ3RoIGluIHRoZSBERkcKKyAgICAgICAgaHR0cHM6 Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTY5MjE1CisKKyAgICAgICAgUmV2aWV3 ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgQWRkcyBhIEdldFN0cmluZ0xlbmd0aCBu b2RlIHRvIHRoZSBERkcgc28gdGhhdCB3ZSBjYW4gc3VwcG9ydAorICAgICAgICBzdHJpbmcubGVu Z3RoIGlubGluZS4KKworICAgICAgICAqIGRmZy9ERkdOb2RlLmg6CisgICAgICAgICogZGZnL0RG R1Byb3BhZ2F0b3IuY3BwOgorICAgICAgICAoSlNDOjpERkc6OlByb3BhZ2F0b3I6OnByb3BhZ2F0 ZU5vZGVQcmVkaWN0aW9ucyk6CisgICAgICAgIChKU0M6OkRGRzo6UHJvcGFnYXRvcjo6Zml4dXBO b2RlKToKKyAgICAgICAgKEpTQzo6REZHOjpQcm9wYWdhdG9yOjpwZXJmb3JtTm9kZUNTRSk6Cisg ICAgICAgICogZGZnL0RGR1NwZWN1bGF0aXZlSklULmg6CisgICAgICAgIChKU0M6OkRGRzo6U3Bl Y3VsYXRpdmVKSVQ6OmlzS25vd25TdHJpbmcpOgorICAgICAgICAqIGRmZy9ERkdTcGVjdWxhdGl2 ZUpJVDMyXzY0LmNwcDoKKyAgICAgICAgKEpTQzo6REZHOjpTcGVjdWxhdGl2ZUpJVDo6Y29tcGls ZSk6CisgICAgICAgICogZGZnL0RGR1NwZWN1bGF0aXZlSklUNjQuY3BwOgorICAgICAgICAoSlND OjpERkc6OlNwZWN1bGF0aXZlSklUOjpjb21waWxlKToKKyAgICAgICAgKiBydW50aW1lL0pTU3Ry aW5nLmg6CisgICAgICAgIChKU0M6OlJvcGVCdWlsZGVyOjpvZmZzZXRPZkxlbmd0aCk6CisKIDIw MTEtMTAtMDEgIFNoZXJpZmYgQm90ICA8d2Via2l0LnJldmlldy5ib3RAZ21haWwuY29tPgogCiAg ICAgICAgIFVucmV2aWV3ZWQsIHJvbGxpbmcgb3V0IHI5NjQyMS4KZGlmZiAtLWdpdCBhL1NvdXJj ZS9KYXZhU2NyaXB0Q29yZS9kZmcvREZHTm9kZS5oIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL2Rm Zy9ERkdOb2RlLmgKaW5kZXggN2RkYjRjY2FkMThjZGQ5M2FlNTM2ZTNmZTQ1OTM1YTk2ZDQyY2Mz Yi4uNjNiN2Y1MDVhOTU3OWJlYzYxMGZjYzRmZTkzZDUzZjZjNTU5ZWNmMyAxMDA2NDQKLS0tIGEv U291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdOb2RlLmgKKysrIGIvU291cmNlL0phdmFTY3Jp cHRDb3JlL2RmZy9ERkdOb2RlLmgKQEAgLTMxOSw2ICszMTksNyBAQCBzdGF0aWMgaW5saW5lIGNv bnN0IGNoYXIqIGFyaXRoTm9kZUZsYWdzQXNTdHJpbmcoQXJpdGhOb2RlRmxhZ3MgZmxhZ3MpCiAg ICAgbWFjcm8oR2V0QnlPZmZzZXQsIE5vZGVSZXN1bHRKUykgXAogICAgIG1hY3JvKFB1dEJ5T2Zm c2V0LCBOb2RlTXVzdEdlbmVyYXRlIHwgTm9kZUNsb2JiZXJzV29ybGQpIFwKICAgICBtYWNybyhH ZXRBcnJheUxlbmd0aCwgTm9kZVJlc3VsdEludDMyKSBcCisgICAgbWFjcm8oR2V0U3RyaW5nTGVu Z3RoLCBOb2RlUmVzdWx0SW50MzIpIFwKICAgICBtYWNybyhHZXRNZXRob2QsIE5vZGVSZXN1bHRK UyB8IE5vZGVNdXN0R2VuZXJhdGUpIFwKICAgICBtYWNybyhDaGVja01ldGhvZCwgTm9kZVJlc3Vs dEpTIHwgTm9kZU11c3RHZW5lcmF0ZSkgXAogICAgIG1hY3JvKEdldFNjb3BlQ2hhaW4sIE5vZGVS ZXN1bHRKUykgXApkaWZmIC0tZ2l0IGEvU291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdQcm9w YWdhdG9yLmNwcCBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9kZmcvREZHUHJvcGFnYXRvci5jcHAK aW5kZXggOTk0YWMzYzI3YWQ0Y2E0YjViZmE0NDZhZWFhYTE0Y2M2N2ZhMjNhMy4uNjQ4NTVjY2Fm ZTg0MzM1ZTQzZWZiM2E4MDE0ZTgxZDM4YWVkMWI4OSAxMDA2NDQKLS0tIGEvU291cmNlL0phdmFT Y3JpcHRDb3JlL2RmZy9ERkdQcm9wYWdhdG9yLmNwcAorKysgYi9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvZGZnL0RGR1Byb3BhZ2F0b3IuY3BwCkBAIC01NTksNyArNTU5LDggQEAgcHJpdmF0ZToKICAg ICAgICAgfQogICAgICAgICAgICAgCiAgICAgICAgIGNhc2UgVmFsdWVUb0RvdWJsZToKLSAgICAg ICAgY2FzZSBHZXRBcnJheUxlbmd0aDogeworICAgICAgICBjYXNlIEdldEFycmF5TGVuZ3RoOgor ICAgICAgICBjYXNlIEdldFN0cmluZ0xlbmd0aDogewogICAgICAgICAgICAgLy8gVGhpcyBub2Rl IHNob3VsZCBuZXZlciBiZSB2aXNpYmxlIGF0IHRoaXMgc3RhZ2Ugb2YgY29tcGlsYXRpb24uIEl0 IGlzCiAgICAgICAgICAgICAvLyBpbnNlcnRlZCBieSBmaXh1cCgpLCB3aGljaCBmb2xsb3dzIHRo aXMgcGhhc2UuCiAgICAgICAgICAgICBBU1NFUlRfTk9UX1JFQUNIRUQoKTsKQEAgLTcwNiw3ICs3 MDcsOSBAQCBwcml2YXRlOgogICAgICAgICB9CiAgICAgICAgICAgICAKICAgICAgICAgY2FzZSBH ZXRCeUlkOiB7Ci0gICAgICAgICAgICBpZiAoIWlzQXJyYXlQcmVkaWN0aW9uKG1fcHJlZGljdGlv bnNbbm9kZS5jaGlsZDEoKV0pKQorICAgICAgICAgICAgYm9vbCBpc0FycmF5ID0gaXNBcnJheVBy ZWRpY3Rpb24obV9wcmVkaWN0aW9uc1tub2RlLmNoaWxkMSgpXSk7CisgICAgICAgICAgICBib29s IGlzU3RyaW5nID0gaXNTdHJpbmdQcmVkaWN0aW9uKG1fcHJlZGljdGlvbnNbbm9kZS5jaGlsZDEo KV0pOworICAgICAgICAgICAgaWYgKCFpc0FycmF5ICYmICFpc1N0cmluZykKICAgICAgICAgICAg ICAgICBicmVhazsKICAgICAgICAgICAgIGlmICghaXNJbnQzMlByZWRpY3Rpb24obV9wcmVkaWN0 aW9uc1ttX2NvbXBpbGVJbmRleF0pKQogICAgICAgICAgICAgICAgIGJyZWFrOwpAQCAtNzE0LDkg KzcxNyw5IEBAIHByaXZhdGU6CiAgICAgICAgICAgICAgICAgYnJlYWs7CiAgICAgICAgICAgICAK ICNpZiBFTkFCTEUoREZHX0RFQlVHX1BST1BBR0FUSU9OX1ZFUkJPU0UpCi0gICAgICAgICAgICBw cmludGYoIiAgQCV1IC0+IEdldEFycmF5TGVuZ3RoIiwgbm9kZUluZGV4KTsKKyAgICAgICAgICAg IHByaW50ZigiICBAJXUgLT4gJXMiLCBub2RlSW5kZXgsIGlzQXJyYXkgPyAiR2V0QXJyYXlMZW5n dGgiIDogIkdldFN0cmluZ0xlbmd0aCIpOwogI2VuZGlmCi0gICAgICAgICAgICBub2RlLm9wID0g R2V0QXJyYXlMZW5ndGg7CisgICAgICAgICAgICBub2RlLm9wID0gaXNBcnJheSA/IEdldEFycmF5 TGVuZ3RoIDogR2V0U3RyaW5nTGVuZ3RoOwogICAgICAgICAgICAgYnJlYWs7CiAgICAgICAgIH0K ICAgICAgICAgICAgIApAQCAtMTE4OSw2ICsxMTkyLDcgQEAgcHJpdmF0ZToKICAgICAgICAgY2Fz ZSBBcml0aFNxcnQ6CiAgICAgICAgIGNhc2UgR2V0Q2FsbGVlOgogICAgICAgICBjYXNlIEdldEFy cmF5TGVuZ3RoOgorICAgICAgICBjYXNlIEdldFN0cmluZ0xlbmd0aDoKICAgICAgICAgICAgIHNl dFJlcGxhY2VtZW50KHB1cmVDU0Uobm9kZSkpOwogICAgICAgICAgICAgYnJlYWs7CiAgICAgICAg ICAgICAKZGlmZiAtLWdpdCBhL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9kZmcvREZHU3BlY3VsYXRp dmVKSVQuaCBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9kZmcvREZHU3BlY3VsYXRpdmVKSVQuaApp bmRleCBiOGM3NTg0ZDBkODdjY2E4NDhlMzBhZTllNWViMmMwZjBiMzk0MmY3Li41ZGFmM2IyOTVj Yzk3OTI5NzA4ZWUyOTk5ZTQ0ZTEzNDY5MDhjYzllIDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNj cmlwdENvcmUvZGZnL0RGR1NwZWN1bGF0aXZlSklULmgKKysrIGIvU291cmNlL0phdmFTY3JpcHRD b3JlL2RmZy9ERkdTcGVjdWxhdGl2ZUpJVC5oCkBAIC01NjgsNiArNTY4LDE4IEBAIHByaXZhdGU6 CiAgICAgICAgICAgICByZXR1cm4gZmFsc2U7CiAgICAgICAgIH0KICAgICB9CisKKyAgICBib29s IGlzS25vd25TdHJpbmcoTm9kZUluZGV4IG9wMSkKKyAgICB7CisgICAgICAgIE5vZGUmIG5vZGUg PSBtX2ppdC5ncmFwaCgpW29wMV07CisgICAgICAgIHN3aXRjaCAobm9kZS5vcCkgeworICAgICAg ICBjYXNlIEdldExvY2FsOgorICAgICAgICAgICAgcmV0dXJuIGlzU3RyaW5nUHJlZGljdGlvbihu b2RlLnZhcmlhYmxlQWNjZXNzRGF0YSgpLT5wcmVkaWN0aW9uKCkpOworCisgICAgICAgIGRlZmF1 bHQ6CisgICAgICAgICAgICByZXR1cm4gZmFsc2U7CisgICAgICAgIH0KKyAgICB9CiAgICAgCiAg ICAgYm9vbCBjb21wYXJlKE5vZGUmLCBNYWNyb0Fzc2VtYmxlcjo6UmVsYXRpb25hbENvbmRpdGlv biwgTWFjcm9Bc3NlbWJsZXI6OkRvdWJsZUNvbmRpdGlvbiwgWl9ERkdPcGVyYXRpb25fRUpKKTsK ICAgICBib29sIGNvbXBpbGVQZWVwSG9sZUJyYW5jaChOb2RlJiwgTWFjcm9Bc3NlbWJsZXI6OlJl bGF0aW9uYWxDb25kaXRpb24sIE1hY3JvQXNzZW1ibGVyOjpEb3VibGVDb25kaXRpb24sIFpfREZH T3BlcmF0aW9uX0VKSik7CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlwdENvcmUvZGZnL0RG R1NwZWN1bGF0aXZlSklUMzJfNjQuY3BwIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdT cGVjdWxhdGl2ZUpJVDMyXzY0LmNwcAppbmRleCAxNTVlZDBjZGM5MzliNzFiYWJjMGQxMzE5OTVj NDljMGQzYWEzM2FjLi45N2M2YjI4MTI2MzgwMDBlOTkzN2UwY2JmYmFkZTI1YjY4MTg1ODMwIDEw MDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENvcmUvZGZnL0RGR1NwZWN1bGF0aXZlSklUMzJf NjQuY3BwCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9kZmcvREZHU3BlY3VsYXRpdmVKSVQz Ml82NC5jcHAKQEAgLTE2NTUsNiArMTY1NSwyNCBAQCB2b2lkIFNwZWN1bGF0aXZlSklUOjpjb21w aWxlKE5vZGUmIG5vZGUpCiAgICAgICAgIGJyZWFrOwogICAgIH0KIAorICAgIGNhc2UgR2V0U3Ry aW5nTGVuZ3RoOiB7CisgICAgICAgIFNwZWN1bGF0ZUNlbGxPcGVyYW5kIGJhc2UodGhpcywgbm9k ZS5jaGlsZDEoKSk7CisgICAgICAgIEdQUlRlbXBvcmFyeSByZXN1bHQodGhpcyk7CisgICAgICAg IAorICAgICAgICBHUFJSZWcgYmFzZUdQUiA9IGJhc2UuZ3ByKCk7CisgICAgICAgIEdQUlJlZyBy ZXN1bHRHUFIgPSByZXN1bHQuZ3ByKCk7CisgICAgICAgIAorICAgICAgICBpZiAoIWlzS25vd25T dHJpbmcobm9kZS5jaGlsZDEoKSkpCisgICAgICAgICAgICBzcGVjdWxhdGlvbkNoZWNrKG1faml0 LmJyYW5jaFB0cihNYWNyb0Fzc2VtYmxlcjo6Tm90RXF1YWwsIE1hY3JvQXNzZW1ibGVyOjpBZGRy ZXNzKGJhc2VHUFIpLCBNYWNyb0Fzc2VtYmxlcjo6VHJ1c3RlZEltbVB0cihtX2ppdC5nbG9iYWxE YXRhKCktPmpzU3RyaW5nVlB0cikpKTsKKyAgICAgICAgCisgICAgICAgIG1faml0LmxvYWQzMihN YWNyb0Fzc2VtYmxlcjo6QWRkcmVzcyhiYXNlR1BSLCBKU1N0cmluZzo6b2Zmc2V0T2ZMZW5ndGgo KSksIHJlc3VsdEdQUik7CisgICAgICAgIAorICAgICAgICBzcGVjdWxhdGlvbkNoZWNrKG1faml0 LmJyYW5jaDMyKE1hY3JvQXNzZW1ibGVyOjpMZXNzVGhhbiwgcmVzdWx0R1BSLCBNYWNyb0Fzc2Vt Ymxlcjo6VHJ1c3RlZEltbTMyKDApKSk7CisgICAgICAgIAorICAgICAgICBpbnRlZ2VyUmVzdWx0 KHJlc3VsdEdQUiwgbV9jb21waWxlSW5kZXgpOworICAgICAgICBicmVhazsKKyAgICB9CisKICAg ICBjYXNlIENoZWNrU3RydWN0dXJlOiB7CiAgICAgICAgIFNwZWN1bGF0ZUNlbGxPcGVyYW5kIGJh c2UodGhpcywgbm9kZS5jaGlsZDEoKSk7CiAgICAgICAgIApkaWZmIC0tZ2l0IGEvU291cmNlL0ph dmFTY3JpcHRDb3JlL2RmZy9ERkdTcGVjdWxhdGl2ZUpJVDY0LmNwcCBiL1NvdXJjZS9KYXZhU2Ny aXB0Q29yZS9kZmcvREZHU3BlY3VsYXRpdmVKSVQ2NC5jcHAKaW5kZXggMGFhMzg4ZmUwNjBlZDBj MjAzMzBlMmMyYTYzN2RhMjcwMGYxNDBiYi4uNmUzYzlmNmRhMjM4NWI4ZDUwYjExZTUzNmMwN2Rh ZDQ3ZGE3NDJhNyAxMDA2NDQKLS0tIGEvU291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdTcGVj dWxhdGl2ZUpJVDY0LmNwcAorKysgYi9Tb3VyY2UvSmF2YVNjcmlwdENvcmUvZGZnL0RGR1NwZWN1 bGF0aXZlSklUNjQuY3BwCkBAIC0xNzE1LDYgKzE3MTUsMjQgQEAgdm9pZCBTcGVjdWxhdGl2ZUpJ VDo6Y29tcGlsZShOb2RlJiBub2RlKQogICAgICAgICBicmVhazsKICAgICB9CiAKKyAgICBjYXNl IEdldFN0cmluZ0xlbmd0aDogeworICAgICAgICBTcGVjdWxhdGVDZWxsT3BlcmFuZCBiYXNlKHRo aXMsIG5vZGUuY2hpbGQxKCkpOworICAgICAgICBHUFJUZW1wb3JhcnkgcmVzdWx0KHRoaXMpOwor ICAgICAgICAKKyAgICAgICAgR1BSUmVnIGJhc2VHUFIgPSBiYXNlLmdwcigpOworICAgICAgICBH UFJSZWcgcmVzdWx0R1BSID0gcmVzdWx0LmdwcigpOworICAgICAgICAKKyAgICAgICAgaWYgKCFp c0tub3duU3RyaW5nKG5vZGUuY2hpbGQxKCkpKQorICAgICAgICAgICAgc3BlY3VsYXRpb25DaGVj ayhtX2ppdC5icmFuY2hQdHIoTWFjcm9Bc3NlbWJsZXI6Ok5vdEVxdWFsLCBNYWNyb0Fzc2VtYmxl cjo6QWRkcmVzcyhiYXNlR1BSKSwgTWFjcm9Bc3NlbWJsZXI6OlRydXN0ZWRJbW1QdHIobV9qaXQu Z2xvYmFsRGF0YSgpLT5qc1N0cmluZ1ZQdHIpKSk7CisgICAgICAgIAorICAgICAgICBtX2ppdC5s b2FkMzIoTWFjcm9Bc3NlbWJsZXI6OkFkZHJlc3MoYmFzZUdQUiwgSlNTdHJpbmc6Om9mZnNldE9m TGVuZ3RoKCkpLCByZXN1bHRHUFIpOworICAgICAgICAKKyAgICAgICAgc3BlY3VsYXRpb25DaGVj ayhtX2ppdC5icmFuY2gzMihNYWNyb0Fzc2VtYmxlcjo6TGVzc1RoYW4sIHJlc3VsdEdQUiwgTWFj cm9Bc3NlbWJsZXI6OlRydXN0ZWRJbW0zMigwKSkpOworICAgICAgICAKKyAgICAgICAgaW50ZWdl clJlc3VsdChyZXN1bHRHUFIsIG1fY29tcGlsZUluZGV4KTsKKyAgICAgICAgYnJlYWs7CisgICAg fQorCiAgICAgY2FzZSBDaGVja1N0cnVjdHVyZTogewogICAgICAgICBTcGVjdWxhdGVDZWxsT3Bl cmFuZCBiYXNlKHRoaXMsIG5vZGUuY2hpbGQxKCkpOwogICAgICAgICAKZGlmZiAtLWdpdCBhL1Nv dXJjZS9KYXZhU2NyaXB0Q29yZS9ydW50aW1lL0pTU3RyaW5nLmggYi9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvcnVudGltZS9KU1N0cmluZy5oCmluZGV4IDU0YWZkNWNlOGJhMDNmNWRkZTJjNTI3MzU4 N2NiOThjYTk2ZGRiYmUuLjFhYzg0ZjQ5MzRjMDc1YTMyY2ViYmM0MzRiOTE3YTY3NTMxZTBkY2Yg MTAwNjQ0Ci0tLSBhL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9ydW50aW1lL0pTU3RyaW5nLmgKKysr IGIvU291cmNlL0phdmFTY3JpcHRDb3JlL3J1bnRpbWUvSlNTdHJpbmcuaApAQCAtNDQ1LDcgKzQ0 NSw5IEBAIG5hbWVzcGFjZSBKU0MgewogICAgICAgICB7CiAgICAgICAgICAgICByZXR1cm4gU3Ry dWN0dXJlOjpjcmVhdGUoZ2xvYmFsRGF0YSwgZ2xvYmFsT2JqZWN0LCBwcm90bywgVHlwZUluZm8o U3RyaW5nVHlwZSwgT3ZlcnJpZGVzR2V0T3duUHJvcGVydHlTbG90KSwgJnNfaW5mbyk7CiAgICAg ICAgIH0KLSAgICAgICAgCisKKyAgICAgICAgc3RhdGljIHNpemVfdCBvZmZzZXRPZkxlbmd0aCgp IHsgcmV0dXJuIE9CSkVDVF9PRkZTRVRPRihKU1N0cmluZywgbV9sZW5ndGgpOyB9CisKICAgICAg ICAgc3RhdGljIGNvbnN0IENsYXNzSW5mbyBzX2luZm87CiAKICAgICBwcml2YXRlOgo=