8065804: JEP 171: Clarifications/corrections for fence intrinsics Reviewed-by: dholmes, shade, dl, psandoz

number array spoiler
-200
-100
-0.5
-0.25
0
0.25
0.5
100
200
-200
-100
-0.5
-0.25
0
0.25
0.5
100
200