public JitVal shaveFromLeft(int amt, JitVal in1) {
		return subpiece(in1.size() - amt, 0, in1);
	}
Remove {@code amt} bytes from the left of the value.

<p>
The value is unaffected by the machine endianness, except to designate the output varnode.

@param amt the number of bytes to remove
@param in1 the input
@return the output
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/emu/jit/analysis/JitDataFlowArithmetic.java