static int intLeft(int val, int amt) {
		if (Long.compareUnsigned(amt, Integer.SIZE) >= 0) {
			return 0;
		}
		return val << amt;
	}
The implementation of {@link PcodeOp#INT_LEFT int_left} on JVM ints.

<p>
The semantics here are subtly different than the JVM's {@link Opcodes#ISHL ishl}: 1) The
amount must be treated as unsigned. 2) Shifts in excess of val's size clear the register.

@param val the value as in {@code val << amt}
@param amt the amt as in {@code val << amt}
@return the value
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/emu/jit/gen/tgt/JitCompiledPassage.java