tree 5c11b8d0094a9b861151e09f41af45c2f18007d3
parent fdceb2a11bb767ddaa334cb39315ae6982b676aa
author Keith Randall <khr@google.com> 1537817218 -0700
committer Keith Randall <khr@golang.org> 1537818951 +0000

cmd/compile: document regalloc fields

Document what the fields of regalloc mean.
Hopefully will help people understand how the register allocator works.

Change-Id: Ic322ed2019cc839b812740afe8cd2cf0b61da046
Reviewed-on: https://go-review.googlesource.com/137016
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>