182792 2018-02-14 06:16:36 -0800 [FTL] Support HasIndexedProperty for ArrayStorage and SlowPutArrayStorage 2018-02-22 22:42:25 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 ysuzuki ysuzuki commit-queue ews-watchlist keith_miller mark.lam msaboff saam webkit-bug-importer oldest_to_newest 1399040 0 ysuzuki 2018-02-14 06:16:36 -0800 [FTL] Support HasIndexedProperty for ArrayStorage 1399041 1 333791 ysuzuki 2018-02-14 06:17:38 -0800 Created attachment 333791 Patch 1400620 2 333791 saam 2018-02-19 19:02:56 -0800 Comment on attachment 333791 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=333791&action=review > Source/JavaScriptCore/ChangeLog:3 > + [FTL] Support HasIndexedProperty for ArrayStorage And SlowPutArrayStorage. > Source/JavaScriptCore/ChangeLog:8 > + This patch adds HasIndexedProperty for ArrayStorage in FTL. And SlowPutArrayStorage. > Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:9781 > + m_out.jump(checkHole); This needs to do a speculation check that it's not out of bounds. Seems like this should be testable via crashing on some OOB read. You also won't need a "checkHole" dedicated block if it's in bounds, you can just use the incoming block we're emitting code in. 1400673 3 333791 ysuzuki 2018-02-19 23:06:20 -0800 Comment on attachment 333791 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=333791&action=review >> Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:9781 >> + m_out.jump(checkHole); > > This needs to do a speculation check that it's not out of bounds. Seems like this should be testable via crashing on some OOB read. You also won't need a "checkHole" dedicated block if it's in bounds, you can just use the incoming block we're emitting code in. As is the same to GetByVal etc., HasIndexedProperty also has special lowering rule in SSA lowering phase, which emits CheckInBounds. We do not need to perform out-of-bounds speculation here since preceeding CheckInBounds does this. For ArrayStorage/SlowPutArrayStorage, we emit GetVectorLength and CheckInBounds instead of GetArrayLength and CheckInBounds. So it is correctly handled. For checkHole case, I'll update the patch to drop checkHole BB for InBounds case. 1400676 4 334244 ysuzuki 2018-02-19 23:16:55 -0800 Created attachment 334244 Patch 1401644 5 334244 mark.lam 2018-02-22 20:47:58 -0800 Comment on attachment 334244 Patch r=me 1401653 6 334244 ysuzuki 2018-02-22 22:18:23 -0800 Comment on attachment 334244 Patch Thanks! 1401657 7 334244 commit-queue 2018-02-22 22:41:54 -0800 Comment on attachment 334244 Patch Clearing flags on attachment: 334244 Committed r228943: <https://trac.webkit.org/changeset/228943> 1401658 8 commit-queue 2018-02-22 22:41:55 -0800 All reviewed patches have been landed. Closing bug. 1401660 9 webkit-bug-importer 2018-02-22 22:42:25 -0800 <rdar://problem/37816653> 333791 2018-02-14 06:17:38 -0800 2018-02-19 23:16:53 -0800 Patch bug-182792-20180214231737.patch text/plain 6858 ysuzuki U3VidmVyc2lvbiBSZXZpc2lvbjogMjI4NDU1CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCA3 NmUxYWNmMmJiZWMyOTM0ZWUyNGNjM2E2YTIzY2M4OTcwM2IzNzZhLi4wYjY2ZmZhOTBiNjhiZGNk ZDhhYTMyMGMyMWVjN2Q2YzBlNmFhZGJkIDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwxOSBAQAorMjAxOC0wMi0xNCAgWXVzdWtlIFN1enVraSAgPHV0YXRhbmUudGVhQGdtYWls LmNvbT4KKworICAgICAgICBbRlRMXSBTdXBwb3J0IEhhc0luZGV4ZWRQcm9wZXJ0eSBmb3IgQXJy YXlTdG9yYWdlCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9p ZD0xODI3OTIKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAg ICBUaGlzIHBhdGNoIGFkZHMgSGFzSW5kZXhlZFByb3BlcnR5IGZvciBBcnJheVN0b3JhZ2UgaW4g 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