public int instructionCount() {
			return instructions;
		}
Get the number of instructions represented in this block

<p>
This may get dicey as blocks are not necessarily split on instruction boundaries.
Nevertheless, we seek to count the number of instructions executed at runtime, so that we
can replay an execution, step in reverse, etc. What we actually do here is count the
number of ops which are the first op produced by a decoded instruction.

@see JitCompiledPassage#count(int, int)
@see JitPcodeThread#count(int, int)
@return the instruction count
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/emu/jit/analysis/JitControlFlowModel.java