cmd/compile: add type check for ssa genericOps
Change-Id: I2233a6a157ec8feffaefd6a8ee65b1c38778c1cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/255238
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Giovanni Bajo <rasky@develer.com>