| commit | a72a499c24cfcfce2a16ac7c228c2c914c4f36c4 | [log] [tgz] |
|---|---|---|
| author | Matthew Dempsky <mdempsky@google.com> | Wed Jun 23 00:49:03 2021 -0700 |
| committer | Matthew Dempsky <mdempsky@google.com> | Wed Jun 23 16:48:35 2021 +0000 |
| tree | 19042a1078728d438c7c3970ea63e5b209577b99 | |
| parent | eb691fdd62c9f1dc36c9c9a974ac2ddad677fd99 [diff] |
[dev.typeparams] cmd/compile: optimize wrapping of constant arguments
When wrapping a go/defer statement like:
go f(g(), "x", 42)
we were wrapping it like:
_0, _1, _2, _3 := f, g(), "x", 42
go func() { _0(_1, _2, _3) }()
This is simple and general (and often necessary), but suboptimal in
some cases, such as this. Instead of evaluating the constant arguments
at the go/defer statement, and storing them into the closure context,
we can just keep them in the wrapped call expression.
This CL changes the code to instead generate (assuming f is a declared
function, not a function-typed variable):
_0 := g()
go func() { f(_0, "x", 42) }()
Change-Id: I2bdd4951e7ee93363e1656ecf9b5bd69a121c38a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330332
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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