Update test expectations.

test/libsolidity/semanticTests/abiEncoderV1/abi_encode_calldata_slice.sol

@@ -62,7 +62,7 @@ contract C {
 // test_bytes() ->
 // gas irOptimized: 511133
 // gas legacy: 466763
-// gas legacyOptimized: 374537
+// gas legacyOptimized: 374591
 // test_uint256() ->
 // gas irOptimized: 706775
 // gas legacy: 634592

test/libsolidity/semanticTests/abiEncoderV2/abi_encode_calldata_slice.sol

@@ -63,7 +63,7 @@ contract C {
 // test_bytes() ->
 // gas irOptimized: 511133
 // gas legacy: 466763
-// gas legacyOptimized: 374537
+// gas legacyOptimized: 374591
 // test_uint256() ->
 // gas irOptimized: 706775
 // gas legacy: 634592

test/libyul/CompilabilityChecker.cpp

@@ -170,7 +170,7 @@ BOOST_AUTO_TEST_CASE(multiple_functions_used_arguments)
 			x := add(add(add(add(add(add(add(add(add(add(add(add(x, r12), r11), r10), r9), r8), r7), r6), r5), r4), r3), r2), r1)
 		}
 	})");
-	BOOST_CHECK_EQUAL(out, "h: 9 g: 3 f: 5 ");
+	BOOST_CHECK_EQUAL(out, "h: 9 g: 5 f: 5 ");
 }
 
 BOOST_AUTO_TEST_CASE(multiple_functions_unused_arguments)
@@ -238,7 +238,7 @@ BOOST_AUTO_TEST_CASE(nested_used_arguments)
 			x := add(add(add(add(add(add(add(add(add(add(add(add(x, r12), r11), r10), r9), r8), r7), r6), r5), r4), r3), r2), r1)
 		}
 	})");
-	BOOST_CHECK_EQUAL(out, "h: 9 g: 3 f: 5 ");
+	BOOST_CHECK_EQUAL(out, "h: 9 g: 5 f: 5 ");
 }
 
 
@@ -303,7 +303,7 @@ BOOST_AUTO_TEST_CASE(also_in_outer_block_used_arguments)
 				sstore(s1, s2)
 			}
 	})");
-	BOOST_CHECK_EQUAL(out, "g: 3 : 9 ");
+	BOOST_CHECK_EQUAL(out, "g: 5 : 9 ");
 }
 
 BOOST_AUTO_TEST_CASE(also_in_outer_block_unused_arguments)

test/libyul/evmCodeTransform/stackReuse/function_argument_reuse.yul

@@ -7,21 +7,21 @@
 // PUSH1 0x17
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
-// DUP4
 // DUP3
+// DUP2
 // SSTORE
+// POP
 // CALLVALUE
 // POP
-// DUP3
+// PUSH1 0x0
+// DUP2
 // SWAP1
 // POP
 // JUMPDEST
-// SWAP4
 // SWAP3
-// POP
+// SWAP2
 // POP
 // POP
 // JUMP

test/libyul/evmCodeTransform/stackReuse/function_many_arguments.yul

@@ -1,5 +1,5 @@
 {
-/*    function f(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) -> x {
+    function f(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) -> x {
         mstore(0x0100, a1)
         mstore(0x0120, a2)
         mstore(0x0140, a3)
@@ -20,8 +20,97 @@
         mstore(0x0320, a18)
         mstore(0x0340, a19)
         x := a20
-    }*/
+    }
 }
 // ====
 // stackOptimization: true
 // ----
+// PUSH1 0x80
+// JUMP
+// JUMPDEST
+// DUP1
+// PUSH2 0x100
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x120
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x140
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x160
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x180
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x1A0
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x1C0
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x1E0
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x200
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x220
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x240
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x260
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x280
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x2A0
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x2C0
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x2E0
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x300
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x320
+// MSTORE
+// POP
+// DUP1
+// PUSH2 0x340
+// MSTORE
+// POP
+// PUSH1 0x0
+// DUP2
+// SWAP1
+// POP
+// JUMPDEST
+// SWAP2
+// SWAP1
+// POP
+// JUMP
+// JUMPDEST

test/libyul/evmCodeTransform/stackReuse/function_retparam_block.yul

@@ -7,9 +7,9 @@
 // PUSH1 0xD
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
+// PUSH1 0x0
 // CALLVALUE
 // POP
 // JUMPDEST

test/libyul/evmCodeTransform/stackReuse/function_retparam_declaration.yul

@@ -7,9 +7,9 @@
 // PUSH1 0xD
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
+// PUSH1 0x0
 // CALLVALUE
 // POP
 // JUMPDEST

test/libyul/evmCodeTransform/stackReuse/function_retparam_for.yul

@@ -7,9 +7,9 @@
 // PUSH1 0x19
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
+// PUSH1 0x0
 // CALLVALUE
 // POP
 // JUMPDEST

test/libyul/evmCodeTransform/stackReuse/function_retparam_if.yul

@@ -7,9 +7,9 @@
 // PUSH1 0x14
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
+// PUSH1 0x0
 // PUSH1 0x1
 // ISZERO
 // PUSH1 0x10

test/libyul/evmCodeTransform/stackReuse/function_retparam_leave.yul

@@ -7,9 +7,9 @@
 // PUSH1 0x10
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
+// PUSH1 0x0
 // PUSH1 0xD
 // JUMP
 // CALLVALUE

test/libyul/evmCodeTransform/stackReuse/function_retparam_read.yul

@@ -7,9 +7,9 @@
 // PUSH1 0x11
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // ADDRESS
 // POP
+// PUSH1 0x0
 // DUP1
 // PUSH1 0x0
 // SSTORE

test/libyul/evmCodeTransform/stackReuse/function_retparam_unassigned.yul

@@ -7,9 +7,9 @@
 // PUSH1 0xB
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
 // CALLVALUE
 // POP
+// PUSH1 0x0
 // JUMPDEST
 // SWAP1
 // JUMP

test/libyul/evmCodeTransform/stackReuse/function_retparam_unassigned_multiple.yul

@@ -7,11 +7,11 @@
 // PUSH1 0x11
 // JUMP
 // JUMPDEST
-// PUSH1 0x0
-// PUSH1 0x0
-// PUSH1 0x0
 // CALLVALUE
 // POP
+// PUSH1 0x0
+// PUSH1 0x0
+// PUSH1 0x0
 // JUMPDEST
 // SWAP1
 // SWAP2

test/libyul/evmCodeTransform/stackReuse/function_with_body_embedded.yul

@@ -14,19 +14,19 @@
 // JUMP
 // JUMPDEST
 // PUSH1 0x0
-// SWAP2
+// DUP2
-// POP
-// DUP1
 // POP
 // PUSH1 0x3
+// SWAP2
+// POP
+// DUP2
 // SWAP1
 // POP
-// DUP1
+// JUMPDEST
+// SWAP3
 // SWAP2
 // POP
 // POP
-// JUMPDEST
-// SWAP1
 // JUMP
 // JUMPDEST
 // PUSH1 0x7