[release-branch.go1.14] runtime: special case interface hashing for pointers
Interfaces often contain pointers. Implement a fast path for this case.
name old time/op new time/op delta
MapInterfaceString-16 21.4ns ±19% 20.5ns ±10% ~ (p=0.361 n=10+10)
MapInterfacePtr-16 25.8ns ± 8% 17.3ns ± 7% -33.11% (p=0.000 n=10+9)
We need this CL as well to fix 37721.
Update #37721
Fixes #37613
Change-Id: Ice52820e6259a3edeafcbbbeb25b1e363bef00d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/219338
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
(cherry picked from commit
afd691c579198387c874512ef1c75db651dba9bd)
Reviewed-on: https://go-review.googlesource.com/c/go/+/222779
Run-TryBot: Alexander Rakoczy <alex@golang.org>