runtime: switch AMD64's publicationBarrier to ABIInternal
Shrinks a few runtime functions:
runtime
runtime.mallocgc 2127 -> 2117 (-0.47%)
runtime.(*mheap).initSpan 652 -> 639 (-1.99%)
runtime.(*mspan).userArenaNextFree 825 -> 808 (-2.06%)
file before after Δ %
runtime.s 512473 512414 -59 -0.012%
total
20843331 20843272 -59 -0.000%
Change-Id: Ifaca7abb6db3467b73945fac71496dd7527e6863
Reviewed-on: https://go-review.googlesource.com/c/go/+/462296
Auto-Submit: Keith Randall <khr@golang.org>
Run-TryBot: Jakub Ciolek <jakub@ciolek.dev>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>