62824 2011-06-16 14:46:25 -0700 DFG JIT - add support for branch-fusion of compareEq, JSValue comparisons in SpeculativeJIT 2011-06-16 16:40:26 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 barraclough barraclough oldest_to_newest 422254 0 barraclough 2011-06-16 14:46:25 -0700 CompareEq of non-integer values is the most common cause of speculation failure. 422257 1 97507 barraclough 2011-06-16 14:48:44 -0700 Created attachment 97507 The patch 422281 2 97507 sam 2011-06-16 15:18:12 -0700 Comment on attachment 97507 The patch View in context: https://bugs.webkit.org/attachment.cgi?id=97507&action=review > Source/JavaScriptCore/ChangeLog:16 > + * dfg/DFGSpeculativeJIT.cpp: > + (JSC::DFG::SpeculativeJIT::compilePeepHoleIntegerBranch): > + (JSC::DFG::SpeculativeJIT::compilePeepHoleEq): > + (JSC::DFG::SpeculativeJIT::compile): > + * dfg/DFGSpeculativeJIT.h: > + (JSC::DFG::SpeculativeJIT::detectPeepHoleBranch): > + (JSC::DFG::SpeculativeJIT::isInteger): PLease add data :( 422318 3 barraclough 2011-06-16 16:40:26 -0700 Fixed in r89084 97507 2011-06-16 14:48:44 -0700 2011-06-16 15:18:12 -0700 The patch 62824.patch text/plain 8155 barraclough SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gODkwNjcpCisrKyBTb3VyY2Uv SmF2YVNjcmlwdENvcmUvQ2hhbmdlTG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMjAgQEAK KzIwMTEtMDYtMTYgIEdhdmluIEJhcnJhY2xvdWdoICA8YmFycmFjbG91Z2hAYXBwbGUuY29tPgor CisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIGh0dHBzOi8v YnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD02MjgyNAorICAgICAgICBERkcgSklUIC0g YWRkIHN1cHBvcnQgZm9yIGJyYW5jaC1mdXNpb24gb2YgY29tcGFyZUVxLCBKU1ZhbHVlIGNvbXBh cmlzb25zIGluIFNwZWN1bGF0aXZlSklUCisKKyAgICAgICAgQ29tcGFyZUVxIG9mIG5vbi1pbnRl Z2VyIHZhbHVlcyBpcyB0aGUgbW9zdCBjb21tb24gY2F1c2Ugb2Ygc3BlY3VsYXRpb24gZmFpbHVy 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