cmd/compile: optimize loads from abi.Type.{Size_,PtrBytes,Kind_}
With the previous CL in place, we can now pretty easily optimize a few
more loads from abi.Type. I've done Size_, PtrBytes, and Kind_, which
are easily calculated.
Among std/cmd, this rule fires a number of times:
75 abi.Type field Kind_
50 abi.PtrType field Elem
14 abi.Type field Hash
4 abi.Type field Size_
2 abi.Type field PtrBytes
The other ones that show up when compiling std/cmd are TFlag and GCData,
but these are not trivially calculated. Doing TFlag would probably be a
decent help given it's often used in things like switches where
statically knowing the kind could eliminate a bunch of dead code.
Change-Id: Ic7fd2113fa7479af914d06916edbca60cc71819f
Reviewed-on: https://go-review.googlesource.com/c/go/+/701298 Reviewed-by: Mark Freeman <markfreeman@google.com> Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>