5a0f2a7a7c
This is a two-pronged approach. First, try to keep large objects off the stack frame. Second, if they do manage to appear anyway, use straight bitmasks instead of gc programs. Generally probably a good idea to keep large objects out of stack frames. But particularly keeping gc programs off the stack simplifies runtime code a bit. This CL sets the limit of most stack objects to 131072 bytes (on 64-bit archs). There can still be large objects if allocated by a late pass, like order, or they are required to be on the stack, like function arguments. But the size for the bitmasks for these objects isn't a huge deal, as we have already have (probably several) bitmasks for the frame liveness map itself. Change-Id: I6d2bed0e9aa9ac7499955562c6154f9264061359 Reviewed-on: https://go-review.googlesource.com/c/go/+/542815 Reviewed-by: David Chase <drchase@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
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README.md
The Go Programming Language
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