Status: Accepted
Owner: [email protected]
Labels: Type-Bug Priority-Medium newgc
New issue 1457 by [email protected]: NewGC: Support EnsureNotWhite on x64
http://code.google.com/p/v8/issues/detail?id=1457
x64 incremental marking is missing an optimization that is present on
IA32. This is the EnsureNotWhite call in the macro assembler, which checks
whether the value being written into a black object is an issue that it
needs to notify the incremental marker about. If the value is non-white or
the value is a pointer-free object that can be marked black then we do not
need to inform the incremental marker.
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