clhsdb 'printall' only displays the base bytecode (iload) for fast_iload and nofast_iload bytecodes.
Comments
Unclear if only iload is not showing fast/nofast info, or all bytecodes with fast/nofast variants have this problem. If anyone is interested in looking into this, it appears that src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/interpreter/BytecodeDisassembler.java is the starting point. Closing as WNF for now.