197306 2019-04-25 22:22:03 -0700 [JSC] linkPolymorphicCall now does GC 2019-04-26 16:32:51 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 ysuzuki ysuzuki ews-watchlist keith_miller mark.lam msaboff saam webkit-bug-importer oldest_to_newest 1530623 0 ysuzuki 2019-04-25 22:22:03 -0700 [JSC] linkPolymorphicCall now does GC 1530636 1 368305 ysuzuki 2019-04-25 23:23:02 -0700 Created attachment 368305 Patch 1530637 2 ysuzuki 2019-04-25 23:24:14 -0700 <rdar://problem/50006719> 1530649 3 368305 ews-watchlist 2019-04-26 01:41:48 -0700 Comment on attachment 368305 Patch Attachment 368305 did not pass jsc-ews (mac): Output: https://webkit-queues.webkit.org/results/12002939 New failing tests: stress/proxy-set-prototype-of.js.dfg-eager stress/super-property-access-tdz.js.ftl-eager stress/const-semantics.js.ftl-eager stress/string-to-string-error.js.dfg-eager-no-cjit-validate stress/lexical-let-loop-semantics.js.dfg-eager stress/proxy-get-prototype-of.js.ftl-eager stress/finally-for-in.js.ftl-eager stress/dfg-object-prototype-of.js.dfg-eager stress/proxy-set-prototype-of.js.ftl-eager-no-cjit stress/proxy-revoke.js.ftl-eager-no-cjit stress/dataview-jit-bounds-checks.js.ftl-eager stress/proxy-get-prototype-of.js.ftl-eager-no-cjit stress/const-tdz.js.ftl-eager-no-cjit stress/typedarray-access-neutered.js.dfg-eager-no-cjit-validate stress/import-syntax.js.ftl-eager stress/async-await-mozilla.js.dfg-eager-no-cjit-validate stress/arrow-functions-as-default-parameter-values.js.ftl-eager stress/lexical-let-tdz.js.dfg-eager-no-cjit-validate stress/string-to-string-error.js.ftl-eager stress/arrowfunction-lexical-bind-arguments-non-strict-1.js.ftl-eager-no-cjit stress/global-import-function-should-return-a-promise-when-clearing-exceptions.js.dfg-eager-no-cjit-validate stress/eval-func-decl-block-with-var-sinthesize.js.ftl-eager stress/super-property-access-tdz.js.ftl-eager-no-cjit stress/inline-call-to-recursive-tail-call.js.dfg-eager-no-cjit-validate stress/dfg-reflect-get-prototype-of.js.dfg-eager stress/typedarray-access-neutered.js.ftl-eager-no-cjit stress/typedarray-access-neutered.js.dfg-eager stress/arrowfunction-lexical-bind-arguments-non-strict-1.js.ftl-eager stress/const-tdz.js.dfg-eager-no-cjit-validate stress/string-to-string-error.js.ftl-eager-no-cjit stress/typedarray-access-neutered.js.no-cjit-collect-continuously stress/es6-default-parameters.js.dfg-eager stress/const-tdz.js.ftl-eager stress/string-value-of-error.js.dfg-eager-no-cjit-validate stress/tail-call-recognize.js.ftl-eager-no-cjit stress/const-loop-semantics.js.dfg-eager stress/proxy-get-prototype-of.js.dfg-eager-no-cjit-validate stress/tail-call-host-call-throw.js.ftl-eager stress/dfg-object-proto-getter.js.dfg-eager stress/dfg-object-proto-accessor.js.dfg-eager stress/to-object-intrinsic.js.dfg-eager-no-cjit-validate stress/global-import-function-should-return-a-promise-when-clearing-exceptions.js.ftl-eager-no-cjit stress/string-value-of-error.js.ftl-eager stress/async-iteration-yield-star.js.ftl-eager-no-cjit stress/lexical-let-tdz.js.dfg-eager stress/typedarray-access-neutered.js.ftl-eager stress/lexical-let-tdz.js.ftl-eager stress/const-semantics.js.dfg-eager stress/const-tdz.js.dfg-eager stress/arrow-functions-as-default-parameter-values.js.ftl-eager-no-cjit stress/super-property-access-tdz.js.dfg-eager-no-cjit-validate stress/proxy-revoke.js.dfg-eager-no-cjit-validate stress/es6-default-parameters.js.ftl-eager stress/string-to-string-error.js.dfg-eager stress/dataview-typedarray-toindex.js.dfg-eager-no-cjit-validate stress/tail-call-recognize.js.dfg-eager stress/proxy-revoke.js.ftl-eager stress/arrowfunction-lexical-bind-superproperty.js.dfg-eager stress/arrowfunction-lexical-bind-this-8.js.dfg-eager stress/string-value-of-error.js.ftl-eager-no-cjit stress/lexical-let-tdz.js.ftl-eager-no-cjit stress/string-value-of-error.js.dfg-eager stress/eval-func-decl-block-with-var-sinthesize.js.ftl-eager-no-cjit stress/es6-default-parameters.js.dfg-eager-no-cjit-validate stress/super-property-access.js.dfg-eager stress/constant-folding-osr-exit.js.ftl-eager stress/super-property-access-tdz.js.dfg-eager stress/proxy-get-prototype-of.js.dfg-eager stress/arrowfunction-lexical-bind-superproperty.js.dfg-eager-no-cjit-validate stress/object-create-define.js.ftl-eager-no-cjit stress/arrowfunction-tdz-3.js.ftl-eager stress/arrow-functions-as-default-parameter-values.js.dfg-eager stress/async-await-mozilla.js.ftl-eager stress/eval-func-decl-block-with-var-sinthesize.js.dfg-eager-no-cjit-validate stress/tail-call-recognize.js.ftl-eager stress/lexical-let-loop-semantics.js.ftl-eager-no-cjit stress/to-object-intrinsic.js.dfg-eager stress/array-species-create-should-handle-masquerader.js.dfg-eager 1530658 4 368305 ysuzuki 2019-04-26 02:56:15 -0700 Comment on attachment 368305 Patch Looking into the test failures. 1530673 5 368305 saam 2019-04-26 08:16:40 -0700 Comment on attachment 368305 Patch Nice find. 1530675 6 saam 2019-04-26 08:17:46 -0700 (In reply to Build Bot from comment #3) > Comment on attachment 368305 [details] > Patch > > Attachment 368305 [details] did not pass jsc-ews (mac): > Output: https://webkit-queues.webkit.org/results/12002939 > > New failing tests: > stress/proxy-set-prototype-of.js.dfg-eager > stress/super-property-access-tdz.js.ftl-eager > stress/const-semantics.js.ftl-eager > stress/string-to-string-error.js.dfg-eager-no-cjit-validate > stress/lexical-let-loop-semantics.js.dfg-eager > stress/proxy-get-prototype-of.js.ftl-eager > stress/finally-for-in.js.ftl-eager > stress/dfg-object-prototype-of.js.dfg-eager > stress/proxy-set-prototype-of.js.ftl-eager-no-cjit > stress/proxy-revoke.js.ftl-eager-no-cjit > stress/dataview-jit-bounds-checks.js.ftl-eager > stress/proxy-get-prototype-of.js.ftl-eager-no-cjit > stress/const-tdz.js.ftl-eager-no-cjit > stress/typedarray-access-neutered.js.dfg-eager-no-cjit-validate > stress/import-syntax.js.ftl-eager > stress/async-await-mozilla.js.dfg-eager-no-cjit-validate > stress/arrow-functions-as-default-parameter-values.js.ftl-eager > stress/lexical-let-tdz.js.dfg-eager-no-cjit-validate > stress/string-to-string-error.js.ftl-eager > stress/arrowfunction-lexical-bind-arguments-non-strict-1.js.ftl-eager-no-cjit > stress/global-import-function-should-return-a-promise-when-clearing- > exceptions.js.dfg-eager-no-cjit-validate > stress/eval-func-decl-block-with-var-sinthesize.js.ftl-eager > stress/super-property-access-tdz.js.ftl-eager-no-cjit > stress/inline-call-to-recursive-tail-call.js.dfg-eager-no-cjit-validate > stress/dfg-reflect-get-prototype-of.js.dfg-eager > stress/typedarray-access-neutered.js.ftl-eager-no-cjit > stress/typedarray-access-neutered.js.dfg-eager > stress/arrowfunction-lexical-bind-arguments-non-strict-1.js.ftl-eager > stress/const-tdz.js.dfg-eager-no-cjit-validate > stress/string-to-string-error.js.ftl-eager-no-cjit > stress/typedarray-access-neutered.js.no-cjit-collect-continuously > stress/es6-default-parameters.js.dfg-eager > stress/const-tdz.js.ftl-eager > stress/string-value-of-error.js.dfg-eager-no-cjit-validate > stress/tail-call-recognize.js.ftl-eager-no-cjit > stress/const-loop-semantics.js.dfg-eager > stress/proxy-get-prototype-of.js.dfg-eager-no-cjit-validate > stress/tail-call-host-call-throw.js.ftl-eager > stress/dfg-object-proto-getter.js.dfg-eager > stress/dfg-object-proto-accessor.js.dfg-eager > stress/to-object-intrinsic.js.dfg-eager-no-cjit-validate > stress/global-import-function-should-return-a-promise-when-clearing- > exceptions.js.ftl-eager-no-cjit > stress/string-value-of-error.js.ftl-eager > stress/async-iteration-yield-star.js.ftl-eager-no-cjit > stress/lexical-let-tdz.js.dfg-eager > stress/typedarray-access-neutered.js.ftl-eager > stress/lexical-let-tdz.js.ftl-eager > stress/const-semantics.js.dfg-eager > stress/const-tdz.js.dfg-eager > stress/arrow-functions-as-default-parameter-values.js.ftl-eager-no-cjit > stress/super-property-access-tdz.js.dfg-eager-no-cjit-validate > stress/proxy-revoke.js.dfg-eager-no-cjit-validate > stress/es6-default-parameters.js.ftl-eager > stress/string-to-string-error.js.dfg-eager > stress/dataview-typedarray-toindex.js.dfg-eager-no-cjit-validate > stress/tail-call-recognize.js.dfg-eager > stress/proxy-revoke.js.ftl-eager > stress/arrowfunction-lexical-bind-superproperty.js.dfg-eager > stress/arrowfunction-lexical-bind-this-8.js.dfg-eager > stress/string-value-of-error.js.ftl-eager-no-cjit > stress/lexical-let-tdz.js.ftl-eager-no-cjit > stress/string-value-of-error.js.dfg-eager > stress/eval-func-decl-block-with-var-sinthesize.js.ftl-eager-no-cjit > stress/es6-default-parameters.js.dfg-eager-no-cjit-validate > stress/super-property-access.js.dfg-eager > stress/constant-folding-osr-exit.js.ftl-eager > stress/super-property-access-tdz.js.dfg-eager > stress/proxy-get-prototype-of.js.dfg-eager > stress/arrowfunction-lexical-bind-superproperty.js.dfg-eager-no-cjit-validate > stress/object-create-define.js.ftl-eager-no-cjit > stress/arrowfunction-tdz-3.js.ftl-eager > stress/arrow-functions-as-default-parameter-values.js.dfg-eager > stress/async-await-mozilla.js.ftl-eager > stress/eval-func-decl-block-with-var-sinthesize.js.dfg-eager-no-cjit-validate > stress/tail-call-recognize.js.ftl-eager > stress/lexical-let-loop-semantics.js.ftl-eager-no-cjit > stress/to-object-intrinsic.js.dfg-eager > stress/array-species-create-should-handle-masquerader.js.dfg-eager Are these real? Maybe we want DeferGCForAWhile? 1530769 7 ysuzuki 2019-04-26 11:31:04 -0700 (In reply to Saam Barati from comment #6) > (In reply to Build Bot from comment #3) > > Comment on attachment 368305 [details] > > Patch > > > > Attachment 368305 [details] did not pass jsc-ews (mac): > > Output: https://webkit-queues.webkit.org/results/12002939 > > > > New failing tests: > > stress/proxy-set-prototype-of.js.dfg-eager > > stress/super-property-access-tdz.js.ftl-eager > > stress/const-semantics.js.ftl-eager > > stress/string-to-string-error.js.dfg-eager-no-cjit-validate > > stress/lexical-let-loop-semantics.js.dfg-eager > > stress/proxy-get-prototype-of.js.ftl-eager > > stress/finally-for-in.js.ftl-eager > > stress/dfg-object-prototype-of.js.dfg-eager > > stress/proxy-set-prototype-of.js.ftl-eager-no-cjit > > stress/proxy-revoke.js.ftl-eager-no-cjit > > stress/dataview-jit-bounds-checks.js.ftl-eager > > stress/proxy-get-prototype-of.js.ftl-eager-no-cjit > > stress/const-tdz.js.ftl-eager-no-cjit > > stress/typedarray-access-neutered.js.dfg-eager-no-cjit-validate > > stress/import-syntax.js.ftl-eager > > stress/async-await-mozilla.js.dfg-eager-no-cjit-validate > > stress/arrow-functions-as-default-parameter-values.js.ftl-eager > > stress/lexical-let-tdz.js.dfg-eager-no-cjit-validate > > stress/string-to-string-error.js.ftl-eager > > stress/arrowfunction-lexical-bind-arguments-non-strict-1.js.ftl-eager-no-cjit > > stress/global-import-function-should-return-a-promise-when-clearing- > > exceptions.js.dfg-eager-no-cjit-validate > > stress/eval-func-decl-block-with-var-sinthesize.js.ftl-eager > > stress/super-property-access-tdz.js.ftl-eager-no-cjit > > stress/inline-call-to-recursive-tail-call.js.dfg-eager-no-cjit-validate > > stress/dfg-reflect-get-prototype-of.js.dfg-eager > > stress/typedarray-access-neutered.js.ftl-eager-no-cjit > > stress/typedarray-access-neutered.js.dfg-eager > > stress/arrowfunction-lexical-bind-arguments-non-strict-1.js.ftl-eager > > stress/const-tdz.js.dfg-eager-no-cjit-validate > > stress/string-to-string-error.js.ftl-eager-no-cjit > > stress/typedarray-access-neutered.js.no-cjit-collect-continuously > > stress/es6-default-parameters.js.dfg-eager > > stress/const-tdz.js.ftl-eager > > stress/string-value-of-error.js.dfg-eager-no-cjit-validate > > stress/tail-call-recognize.js.ftl-eager-no-cjit > > stress/const-loop-semantics.js.dfg-eager > > stress/proxy-get-prototype-of.js.dfg-eager-no-cjit-validate > > stress/tail-call-host-call-throw.js.ftl-eager > > stress/dfg-object-proto-getter.js.dfg-eager > > stress/dfg-object-proto-accessor.js.dfg-eager > > stress/to-object-intrinsic.js.dfg-eager-no-cjit-validate > > stress/global-import-function-should-return-a-promise-when-clearing- > > exceptions.js.ftl-eager-no-cjit > > stress/string-value-of-error.js.ftl-eager > > stress/async-iteration-yield-star.js.ftl-eager-no-cjit > > stress/lexical-let-tdz.js.dfg-eager > > stress/typedarray-access-neutered.js.ftl-eager > > stress/lexical-let-tdz.js.ftl-eager > > stress/const-semantics.js.dfg-eager > > stress/const-tdz.js.dfg-eager > > stress/arrow-functions-as-default-parameter-values.js.ftl-eager-no-cjit > > stress/super-property-access-tdz.js.dfg-eager-no-cjit-validate > > stress/proxy-revoke.js.dfg-eager-no-cjit-validate > > stress/es6-default-parameters.js.ftl-eager > > stress/string-to-string-error.js.dfg-eager > > stress/dataview-typedarray-toindex.js.dfg-eager-no-cjit-validate > > stress/tail-call-recognize.js.dfg-eager > > stress/proxy-revoke.js.ftl-eager > > stress/arrowfunction-lexical-bind-superproperty.js.dfg-eager > > stress/arrowfunction-lexical-bind-this-8.js.dfg-eager > > stress/string-value-of-error.js.ftl-eager-no-cjit > > stress/lexical-let-tdz.js.ftl-eager-no-cjit > > stress/string-value-of-error.js.dfg-eager > > stress/eval-func-decl-block-with-var-sinthesize.js.ftl-eager-no-cjit > > stress/es6-default-parameters.js.dfg-eager-no-cjit-validate > > stress/super-property-access.js.dfg-eager > > stress/constant-folding-osr-exit.js.ftl-eager > > stress/super-property-access-tdz.js.dfg-eager > > stress/proxy-get-prototype-of.js.dfg-eager > > stress/arrowfunction-lexical-bind-superproperty.js.dfg-eager-no-cjit-validate > > stress/object-create-define.js.ftl-eager-no-cjit > > stress/arrowfunction-tdz-3.js.ftl-eager > > stress/arrow-functions-as-default-parameter-values.js.dfg-eager > > stress/async-await-mozilla.js.ftl-eager > > stress/eval-func-decl-block-with-var-sinthesize.js.dfg-eager-no-cjit-validate > > stress/tail-call-recognize.js.ftl-eager > > stress/lexical-let-loop-semantics.js.ftl-eager-no-cjit > > stress/to-object-intrinsic.js.dfg-eager > > stress/array-species-create-should-handle-masquerader.js.dfg-eager > > Are these real? Maybe we want DeferGCForAWhile? Yes, I tested it on my home machine yesterday and it was real. It seems that JITCode is changing and operationOptimize see unexpected JITType for the CodeBlock (rough investigation I did yesterday). And my impression is that we should use DeferGCForAWhile. After I figured out what is happening, and if it is fixed with DeferGCForAWhile, I'll land this with DeferGCForAWhile and comment about the behavior. 1530817 8 ysuzuki 2019-04-26 14:55:53 -0700 (In reply to Yusuke Suzuki from comment #7) > (In reply to Saam Barati from comment #6) > > Are these real? Maybe we want DeferGCForAWhile? > > Yes, I tested it on my home machine yesterday and it was real. > It seems that JITCode is changing and operationOptimize see unexpected > JITType for the CodeBlock (rough investigation I did yesterday). > And my impression is that we should use DeferGCForAWhile. After I figured > out what is happening, and if it is fixed with DeferGCForAWhile, I'll land > this with DeferGCForAWhile and comment about the behavior. When GC happens, it may jettison CodeBlock, and it makes operationLinkPolymorphicCall's SlowPathReturnType result broken. We should not perform GC in linkPolymorphicCall. So, DeferGCForAWhile is the correct fix. 1530858 9 ysuzuki 2019-04-26 16:32:51 -0700 Committed r244711: <https://trac.webkit.org/changeset/244711> 368305 2019-04-25 23:23:02 -0700 2019-04-26 08:16:40 -0700 Patch bug-197306-20190425232301.patch text/plain 6907 ysuzuki U3VidmVyc2lvbiBSZXZpc2lvbjogMjQ0NjY2CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCBh OGFkNDc1ZjRkNGQzNWIxZDZjYjdkMTkxZGZiYjE2NjRhM2M2YTQ1Li5kM2Y2YzY0MmRhMTRkOGJh NTFjYzMxMmQwYTA4YmY1NjBiMjhjNzUxIDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwxOSBAQAorMjAxOS0wNC0yNSAgWXVzdWtlIFN1enVraSAgPHlzdXp1a2lAYXBwbGUuY29t PgorCisgICAgICAgIFtKU0NdIGxpbmtQb2x5bW9ycGhpY0NhbGwgbm93IGRvZXMgR0MKKyAgICAg ICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTE5NzMwNgorCisgICAg ICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFByZXZpb3VzbHksIHdl 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