runtime: improve barrier implementation layering #21640
Labels
compiler/runtime
Issues related to the Go compiler and/or runtime.
NeedsFix
The path to resolution is known, but the work has not been done.
Milestone
This is a migration of some discussion in CL 37628.
bulkBarrierPreWrite calls writebarrierptr_prewrite1 repeatedly. Every call to writebarrierptr_prewrite1 does some sanity checks and hops on and off the system stack. This seems silly.
@aclements wrote:
I wrote:
@aclements wrote:
There are several TODOs here:
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