Tests and Changelog

test/cmdlineTests/optimizer_array_sload/input.sol

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.0;
+
+contract Arraysum {
+	uint256[] values;
+
+	function sumArray() public view returns(uint) {
+		uint sum = 0;
+		// The optimizer should read the length of the array only once, because
+		// LoopInvariantCodeMotion can move the `sload` corresponding to the length outside of the
+		// loop.
+		for(uint i = 0; i < values.length; i++)
+			sum += values[i];
+	}
+}