192723 2018-12-14 16:16:03 -0800 [BigInt] We should enable CSE into arithmetic operations that speculate BigIntUse 2018-12-20 03:59:14 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 192921 1 ticaiolima ticaiolima cdumez commit-queue ews-watchlist keith_miller mark.lam msaboff rniwa ryanhaddad saam webkit-bug-importer ysuzuki oldest_to_newest 1488094 0 ticaiolima 2018-12-14 16:16:03 -0800 Now, our rules for ValueArith nodes are conservative and we don't allow CSE. In the case of SpecBigInt, we can be less conservative and allow CSE. 1488417 1 357436 ticaiolima 2018-12-17 05:51:11 -0800 Created attachment 357436 Proposed Patch 1489236 2 357436 saam 2018-12-18 23:33:14 -0800 Comment on attachment 357436 Proposed Patch r=me 1489271 3 357436 ticaiolima 2018-12-19 03:47:00 -0800 Comment on attachment 357436 Proposed Patch Thank you very much for the review. 1489273 4 357436 commit-queue 2018-12-19 04:12:45 -0800 Comment on attachment 357436 Proposed Patch Clearing flags on attachment: 357436 Committed r239377: <https://trac.webkit.org/changeset/239377> 1489274 5 commit-queue 2018-12-19 04:12:47 -0800 All reviewed patches have been landed. Closing bug. 1489275 6 webkit-bug-importer 2018-12-19 04:13:38 -0800 <rdar://problem/46838118> 1489636 7 ryanhaddad 2018-12-19 17:39:14 -0800 It looks like this change caused 35 JSC tests to fail an assertion: ASSERTION FAILED: node() /Volumes/Data/slave/highsierra-debug/build/Source/JavaScriptCore/dfg/DFGEdge.h(82) : JSC::DFG::UseKind JSC::DFG::Edge::useKind() const 1 0x101610ec9 WTFCrash 2 0x101611ebb WTFCrashWithInfo(int, char const*, char const*, int) 3 0x10175245d JSC::DFG::Edge::useKind() const 4 0x10176ff95 JSC::DFG::Node::binaryUseKind() 5 0x102507d39 JSC::DFG::StrengthReductionPhase::handleNode() 6 0x10250656f JSC::DFG::StrengthReductionPhase::run() 7 0x102506351 bool JSC::DFG::runAndLog<JSC::DFG::StrengthReductionPhase>(JSC::DFG::StrengthReductionPhase&) 8 0x1024fe72e bool JSC::DFG::runPhase<JSC::DFG::StrengthReductionPhase>(JSC::DFG::Graph&) 9 0x1024fe6f5 JSC::DFG::performStrengthReduction(JSC::DFG::Graph&) 10 0x10249a9d7 JSC::DFG::Plan::compileInThreadImpl() 11 0x102499112 JSC::DFG::Plan::compileInThread(JSC::DFG::ThreadData*) 12 0x1022e21fe JSC::DFG::compileImpl(JSC::VM&, JSC::CodeBlock*, JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, JSC::Operands<JSC::JSValue> const&, WTF::Ref<JSC::DeferredCompilationCallback, WTF::DumbPtrTraits<JSC::DeferredCompilationCallback> >&&) 13 0x1022e1c9f JSC::DFG::compile(JSC::VM&, JSC::CodeBlock*, JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, JSC::Operands<JSC::JSValue> const&, WTF::Ref<JSC::DeferredCompilationCallback, WTF::DumbPtrTraits<JSC::DeferredCompilationCallback> >&&) 14 0x1027dd5cc operationOptimize 15 0x5e89e90e72b 16 0x101b012c9 vmEntryToJavaScript 17 0x1027561de JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) 18 0x10275576f JSC::Interpreter::executeProgram(JSC::SourceCode const&, JSC::ExecState*, JSC::JSObject*) 19 0x102a4f385 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) 20 0x101545cfb runWithOptions(GlobalObject*, CommandLine&, bool&) 21 0x10151d31a jscmain(int, char**)::$_6::operator()(JSC::VM&, GlobalObject*, bool&) const 22 0x101500954 int runJSC<jscmain(int, char**)::$_6>(CommandLine const&, bool, jscmain(int, char**)::$_6 const&) 23 0x1014ff0e7 jscmain(int, char**) 24 0x1014fef4e main 25 0x7fff62e41015 start 26 0xc https://build.webkit.org/builders/Apple%20High%20Sierra%20Debug%20JSC%20%28Tests%29/builds/1926/steps/jscore-test/logs/stdio 1489648 8 ticaiolima 2018-12-19 17:55:31 -0800 I'm looking into that now. (In reply to Ryan Haddad from comment #7) > It looks like this change caused 35 JSC tests to fail an assertion: > > ASSERTION FAILED: node() > /Volumes/Data/slave/highsierra-debug/build/Source/JavaScriptCore/dfg/ > DFGEdge.h(82) : JSC::DFG::UseKind JSC::DFG::Edge::useKind() const > 1 0x101610ec9 WTFCrash > 2 0x101611ebb WTFCrashWithInfo(int, char const*, char const*, int) > 3 0x10175245d JSC::DFG::Edge::useKind() const > 4 0x10176ff95 JSC::DFG::Node::binaryUseKind() > 5 0x102507d39 JSC::DFG::StrengthReductionPhase::handleNode() > 6 0x10250656f JSC::DFG::StrengthReductionPhase::run() > 7 0x102506351 bool > JSC::DFG::runAndLog<JSC::DFG::StrengthReductionPhase>(JSC::DFG:: > StrengthReductionPhase&) > 8 0x1024fe72e bool > JSC::DFG::runPhase<JSC::DFG::StrengthReductionPhase>(JSC::DFG::Graph&) > 9 0x1024fe6f5 JSC::DFG::performStrengthReduction(JSC::DFG::Graph&) > 10 0x10249a9d7 JSC::DFG::Plan::compileInThreadImpl() > 11 0x102499112 JSC::DFG::Plan::compileInThread(JSC::DFG::ThreadData*) > 12 0x1022e21fe JSC::DFG::compileImpl(JSC::VM&, JSC::CodeBlock*, > JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, > JSC::Operands<JSC::JSValue> const&, > WTF::Ref<JSC::DeferredCompilationCallback, > WTF::DumbPtrTraits<JSC::DeferredCompilationCallback> >&&) > 13 0x1022e1c9f JSC::DFG::compile(JSC::VM&, JSC::CodeBlock*, > JSC::CodeBlock*, JSC::DFG::CompilationMode, unsigned int, > JSC::Operands<JSC::JSValue> const&, > WTF::Ref<JSC::DeferredCompilationCallback, > WTF::DumbPtrTraits<JSC::DeferredCompilationCallback> >&&) > 14 0x1027dd5cc operationOptimize > 15 0x5e89e90e72b > 16 0x101b012c9 vmEntryToJavaScript > 17 0x1027561de JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) > 18 0x10275576f JSC::Interpreter::executeProgram(JSC::SourceCode const&, > JSC::ExecState*, JSC::JSObject*) > 19 0x102a4f385 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, > JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) > 20 0x101545cfb runWithOptions(GlobalObject*, CommandLine&, bool&) > 21 0x10151d31a jscmain(int, char**)::$_6::operator()(JSC::VM&, > GlobalObject*, bool&) const > 22 0x101500954 int runJSC<jscmain(int, char**)::$_6>(CommandLine const&, > bool, jscmain(int, char**)::$_6 const&) > 23 0x1014ff0e7 jscmain(int, char**) > 24 0x1014fef4e main > 25 0x7fff62e41015 start > 26 0xc > > https://build.webkit.org/builders/ > Apple%20High%20Sierra%20Debug%20JSC%20%28Tests%29/builds/1926/steps/jscore- > test/logs/stdio 1489654 9 ticaiolima 2018-12-19 18:19:36 -0800 Handling the issue in https://bugs.webkit.org/show_bug.cgi?id=192908 1489770 10 keith_miller 2018-12-19 23:32:46 -0800 I think we should revert this until we can reland it with a fix. It's not great to leave failing tests in the tree for an extended period of time. 1489773 11 commit-queue 2018-12-19 23:33:42 -0800 Re-opened since this is blocked by bug 192921 1489810 12 ticaiolima 2018-12-20 02:28:44 -0800 *** Bug 192908 has been marked as a duplicate of this bug. *** 1489811 13 ticaiolima 2018-12-20 02:32:38 -0800 (In reply to Keith Miller from comment #10) > I think we should revert this until we can reland it with a fix. It's not > great to leave failing tests in the tree for an extended period of time. Sorry for leaving this so long and thx for the rollback. 1489812 14 357805 ticaiolima 2018-12-20 02:37:51 -0800 Created attachment 357805 Patch 1489813 15 ticaiolima 2018-12-20 02:40:01 -0800 (In reply to Caio Lima from comment #14) > Created attachment 357805 [details] > Patch The difference from previous version is that we need to avoid execution of 'm_node->binaryUseKind()' after performing String Folding into DFGStrengthReductionPhase.cpp. I added a break into line 375 1489814 16 357805 ysuzuki 2018-12-20 02:53:18 -0800 Comment on attachment 357805 Patch r=me 1489815 17 357805 ticaiolima 2018-12-20 03:33:20 -0800 Comment on attachment 357805 Patch Thank you for the review! 1489817 18 357805 commit-queue 2018-12-20 03:59:12 -0800 Comment on attachment 357805 Patch Clearing flags on attachment: 357805 Committed r239438: <https://trac.webkit.org/changeset/239438> 1489818 19 commit-queue 2018-12-20 03:59:14 -0800 All reviewed patches have been landed. Closing bug. 357436 2018-12-17 05:51:11 -0800 2018-12-20 02:37:29 -0800 Proposed Patch bug-192723-20181217115108.patch text/plain 13382 ticaiolima U3VidmVyc2lvbiBSZXZpc2lvbjogMjM5MjUxCmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCBh NzA0NjNmNDZlM2NlZDg2M2Y3NTM5M2MyYjI0MDBlYjFlYTU5ODUwLi42MDQ3YTY1YmViZTFhMTM1 ZTc2NGJiOTNhNDU2NGJhMmZjODJjNTJmIDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwzMCBAQAorMjAxOC0xMi0xNyAgQ2FpbyBMaW1hICA8dGljYWlvbGltYUBnbWFpbC5jb20+ CisKKyAgICAgICAgW0JpZ0ludF0gV2Ugc2hvdWxkIGVuYWJsZSBDU0UgaW50byBhcml0aG1ldGlj IG9wZXJhdGlvbnMgdGhhdCBzcGVjdWxhdGUgQmlnSW50VXNlCisgICAgICAgIGh0dHBzOi8vYnVn cy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xOTI3MjMKKworICAgICAgICBSZXZpZXdlZCBi eSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBUaGlzIHBhdGNoIGlzIGFkanVzdGluZyBjbG9i YmVyaXplIHJ1bGVzIGludG8gVmFsdWVPcCBub2RlcyB0byBlbmFibGUKKyAgICAgICAgbW9yZSBv 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