104c293ffe
The existing implementation causes unnecessary heap allocations for
javascript syscalls: Call, Invoke, and New. The new change seeks to
hint the Go compiler to allocate arg slices with length <=16 to the
stack.
Original Work: CL 367045
- Calling a JavaScript function with 16 arguments or fewer will not
induce two additional heap allocations, at least with the current Go
compiler.
- Using syscall/js features with slices and strings of
statically-known length will not cause them to be escaped to the heap,
at least with the current Go compiler.
- The reduction in allocations has the additional benefit that the
garbage collector runs less often, blocking WebAssembly's one and only
thread less often.
Fixes #39740
Change-Id: I815047e1d4f8ada796318e2064d38d3e63f73098
GitHub-Last-Rev:
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