reflect, runtime: add reflect support for regabi on s390x
This adds the regabi support needed for reflect calls
makeFuncSub and methodValueCall. Also, It add's archFloat32FromReg
and archFloat32ToReg.
Update #40724
Change-Id: Ic4b9e30c82f292a24fd2c2b9796cd80a58cecf77
Reviewed-on: https://go-review.googlesource.com/c/go/+/719480 Reviewed-by: Vishwanatha HD <vishwanatha.hd@ibm.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>