cmd/compile: incorrect handling of uint64 function parameters(?) on s390x #19940
Description
What version of Go are you using (go version)?
go version devel +5a45a15 Fri Mar 31 05:02:02 2017 +0000 linux/s390x
also observed with go1.8+
What did you do?
Following reproducer fails on s390x, https://play.golang.org/p/ktGF0Uev_0
What did you expect to see?
PASSED
What did you see instead?
FAILED
0
1999999999999999999
>=
18446744073709551557