test/fixedbugs: add s390x case to issue11656

An instruction consisting of all 0s causes an illegal instruction
signal on s390x. Since 0s are the default in this test this CL just
makes it explicit.

Change-Id: Id6e060eed1a588f4b10a4e4861709fcd19b434ac
Reviewed-on: https://go-review.googlesource.com/20962
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/test/fixedbugs/issue11656.go b/test/fixedbugs/issue11656.go
index 565e796ed016cd683c2c4dffaa93a6a17d730eec..93e18225c10e112fe40ffb2d9e2e5b26e8fbe335 100644 (file)
--- a/test/fixedbugs/issue11656.go
+++ b/test/fixedbugs/issue11656.go
@@ -65,6 +65,8 @@ func f(n int) {
                binary.BigEndian.PutUint32(ill, 0x00000034) // trap
        case "mips64le":
                binary.LittleEndian.PutUint32(ill, 0x00000034) // trap
+       case "s390x":
+               binary.BigEndian.PutUint32(ill, 0) // undefined instruction
        default:
                // Just leave it as 0 and hope for the best.
        }