230377 2021-09-16 15:37:53 -0700 Avoid emitting unnecessary write barriers for PutByVal and PutPrivateName 2024-04-08 13:37:30 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 230378 1 justin_michaud justin_michaud bfulgham mark.lam webkit-bug-importer ysuzuki oldest_to_newest 1794235 0 justin_michaud 2021-09-16 15:37:53 -0700 This bug would disclose a security issue, and so I chose to also categorize it as security. We should avoid emitting write barriers when they are not needed, for example when we do not touch the butterfly. An example of this is a PutPrivateName that is not a define and has a non-cell value. See DFGStoreBarrierInsertionPhase FIXMEs for PutByVal and PutPrivateName. 1794236 1 webkit-bug-importer 2021-09-16 15:38:07 -0700 <rdar://problem/83216483> 2026894 2 justin_michaud 2024-04-08 13:37:30 -0700 Closing old bugs assigned to me