[dev.regabi] cmd/compile: make ir.Func the ODCLFUNC Node implementation
Before this CL, an ODCLFUNC Node was represented by both
a node struct and a Func struct (and a Name for the ONAME,
which isn't changing here). Now Func can be repurposed as
the ODCLFUNC implementation, replacing the two structs
totaling 280+144 = 424 bytes (64-bit) with a single 320-byte struct.
Using the *Func as the node also gives us a clear, typed answer to
“which node should we use to represent functions?”
The next CL will clean up uses. This CL is just the trivial
change in representation.
Passes buildall w/ toolstash -cmp.
Change-Id: Ie6d670da91d6eb8d67a85f8f83630b9586dc7443
Reviewed-on: https://go-review.googlesource.com/c/go/+/274096
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>