Merge remote-tracking branch 'origin/develop' into breaking

test/libsolidity/semanticTests/array/copying/array_copy_clear_storage_packed.sol

@@ -39,7 +39,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f() -> 0
 // g() -> 0

test/libsolidity/semanticTests/array/copying/array_nested_calldata_to_memory.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract c {
     function test1(uint256[][] calldata c) external returns (uint256, uint256) {

test/libsolidity/semanticTests/array/copying/array_of_struct_calldata_to_memory.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {

test/libsolidity/semanticTests/array/copying/array_of_structs_containing_arrays_calldata_to_memory.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {

test/libsolidity/semanticTests/constructor/evm_exceptions_in_constructor_call_fail.sol

@@ -16,7 +16,6 @@ contract B {
 
 // ====
 // compileViaYul: also
-// compileToEwasm: also
 // ----
 // testIt() ->
 // test() -> 2

test/libsolidity/semanticTests/constructor_ihneritance_init_order_2.sol

@@ -8,7 +8,7 @@ contract B is A {
     uint public y = f();
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // constructor() ->

test/libsolidity/semanticTests/freeFunctions/free_runtimecode.sol

@@ -12,6 +12,6 @@ contract D {
   }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f() -> true

test/libsolidity/semanticTests/freeFunctions/new_operator.sol

@@ -12,6 +12,6 @@ contract D {
   }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f() -> 2

test/libsolidity/semanticTests/getters/small_types.sol

@@ -1,20 +0,0 @@
-contract C {
-    uint8 public a;
-    uint16 public b;
-    uint128 public c;
-    uint public d;
-    constructor() {
-        a = 3;
-        b = 4;
-        c = 5;
-        d = 6;
-    }
-}
-// ====
-// compileViaYul: also
-// compileToEwasm: also
-// ----
-// a() -> 3
-// b() -> 4
-// c() -> 5
-// d() -> 6

test/libsolidity/semanticTests/getters/string_and_bytes.sol

@@ -0,0 +1,14 @@
+contract C {
+    string public a;
+    string public b;
+    bytes public c;
+    constructor() {
+        a = "hello world";
+        b = hex"41424344";
+        c = hex"ff077fff";
+    }
+}
+// ----
+// a() -> 0x20, 11, "hello world"
+// b() -> 0x20, 4, "ABCD"
+// c() -> 0x20, 4, -439061522557375173052089223601630338202760422010735733633791622124826263552

test/libsolidity/semanticTests/getters/value_types.sol

@@ -0,0 +1,35 @@
+contract C {
+    uint8 public a;
+    uint16 public b;
+    uint128 public c;
+    uint public d;
+    bytes1 public e;
+    bytes20 public f;
+    bytes32 public g;
+    bool public h;
+    address public i;
+    constructor() {
+        a = 3;
+        b = 4;
+        c = 5;
+        d = 6;
+        e = bytes1(uint8(0x7f));
+        f = bytes20(uint160(0x64656164626565663135646561640000000000000010));
+        g = bytes32(uint256(0x6465616462656566313564656164000000000000000000000000000000000010));
+        h = true;
+        i = address(type(uint160).max / 3);
+    }
+}
+// ====
+// compileToEwasm: also
+// compileViaYul: also
+// ----
+// a() -> 3
+// b() -> 4
+// c() -> 5
+// d() -> 6
+// e() -> 0x7f00000000000000000000000000000000000000000000000000000000000000
+// f() -> 0x6164626565663135646561640000000000000010000000000000000000000000
+// g() -> 0x6465616462656566313564656164000000000000000000000000000000000010
+// h() -> true
+// i() -> 0x5555555555555555555555555555555555555555

test/libsolidity/semanticTests/revertStrings/function_entry_checks_v1.sol

@@ -0,0 +1,10 @@
+pragma abicoder v1;
+contract C {
+    function t(uint) public pure {}
+}
+// ====
+// EVMVersion: >=byzantium
+// compileViaYul: false
+// revertStrings: debug
+// ----
+// t(uint256) -> FAILURE, hex"08c379a0", 0x20, 0x12, "Calldata too short"

test/libsolidity/semanticTests/revertStrings/function_entry_checks_v1_abiv2.sol

@@ -0,0 +1,10 @@
+pragma abicoder v2;
+contract C {
+    function t(uint) public pure {}
+}
+// ====
+// EVMVersion: >=byzantium
+// compileViaYul: false
+// revertStrings: debug
+// ----
+// t(uint256) -> FAILURE, hex"08c379a0", 0x20, 34, "ABI decoding: tuple data too sho", "rt"

test/libsolidity/semanticTests/structs/calldata/calldata_nested_structs.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {
@@ -42,7 +42,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f((uint128, (uint128, uint256[][2], uint32)), uint32): 0x40, 44, 11, 0x40, 22, 0x60, 33, 0x40, 0x40, 2, 1, 2 -> 44, 22, 1, 2, 33
 // g(((uint128, uint256[][2], uint32)[2])): 0x20, 0x20, 0x40, 0x40, 22, 0x60, 33, 0x40, 0x40, 2, 1, 2 -> 22, 1, 2, 33

test/libsolidity/semanticTests/structs/calldata/calldata_struct_as_argument_of_lib_function.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 struct S {
     uint128 p1;
@@ -23,7 +23,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // library: L
 // f((uint128, (uint128, uint256[][2], uint32)), uint32): 0x40, 44, 11, 0x40, 22, 0x60, 33, 0x40, 0x40, 2, 1, 2 -> 44, 22, 1, 2, 33

test/libsolidity/semanticTests/structs/calldata/calldata_struct_as_memory_argument.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {
@@ -18,6 +18,6 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f(uint32, (uint128, uint256[][2], uint32)): 55, 0x40, 77, 0x60, 88, 0x40, 0x40, 2, 1, 2 -> 55, 78, 1, 2, 88

test/libsolidity/semanticTests/structs/calldata/calldata_struct_to_memory_tuple_assignment.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {
@@ -17,6 +17,6 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f(uint32, (uint128, uint256[][2], uint32)): 55, 0x40, 77, 0x60, 88, 0x40, 0x40, 2, 1, 2 -> 55, 78, 1, 2, 88

test/libsolidity/semanticTests/structs/calldata/calldata_struct_with_array_to_memory.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {

test/libsolidity/semanticTests/structs/calldata/calldata_struct_with_bytes_to_memory.sol

@@ -0,0 +1,23 @@
+pragma abicoder v2;
+
+contract C {
+    struct S {
+        uint256 a;
+        bytes b;
+        uint256 c;
+    }
+
+    function f(S calldata c)
+        external
+        pure
+        returns (uint256, byte, byte, uint256)
+    {
+        S memory m = c;
+        return (m.a, m.b[0], m.b[1], m.c);
+    }
+}
+
+// ====
+// compileViaYul: also
+// ----
+// f((uint256,bytes,uint256)): 0x20, 42, 0x60, 23, 2, "ab" -> 42, "a", "b", 23

test/libsolidity/semanticTests/structs/calldata/calldata_struct_with_nested_array_to_memory.sol

@@ -1,4 +1,4 @@
-pragma experimental ABIEncoderV2;
+pragma abicoder v2;
 
 contract C {
     struct S {
@@ -18,6 +18,6 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f(uint32, (uint128, uint256[][2], uint32)): 55, 0x40, 77, 0x60, 88, 0x40, 0x40, 2, 1, 2 -> 55, 78, 1, 2, 88

test/libsolidity/semanticTests/tryCatch/try_catch_library_call.sol

@@ -36,6 +36,7 @@ contract C {
     }
 }
 // ====
+// compileViaYul: also
 // EVMVersion: >=byzantium
 // ----
 // library: L

test/libsolidity/semanticTests/uninitializedFunctionPointer/invalidInConstructor.sol

@@ -19,5 +19,7 @@ contract Test {
     new C();
   }
 }
+// ====
+// compileViaYul: also
 // ----
 // f() -> FAILURE, hex"4e487b71", 0x51

test/libsolidity/semanticTests/uninitializedFunctionPointer/invalidStoredInConstructor.sol

@@ -19,5 +19,7 @@ contract Test {
     new C();
   }
 }
+// ====
+// compileViaYul: also
 // ----
 // f() -> FAILURE, hex"4e487b71", 0x51

test/libsolidity/semanticTests/viaYul/array_memory_as_parameter.sol

@@ -18,7 +18,7 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // test(uint256,uint256): 0, 0 -> FAILURE, hex"4e487b71", 0x32
 // test(uint256,uint256): 1, 0 -> 1

test/libsolidity/semanticTests/viaYul/array_memory_create.sol

@@ -6,7 +6,7 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // create(uint256): 0 -> 0
 // create(uint256): 7 -> 7

test/libsolidity/semanticTests/viaYul/array_memory_index_access.sol

@@ -22,7 +22,7 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // index(uint256): 0 -> true
 // index(uint256): 10 -> true

test/libsolidity/semanticTests/viaYul/array_storage_index_access.sol

@@ -14,7 +14,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // test_indices(uint256): 1 ->
 // test_indices(uint256): 129 ->

test/libsolidity/semanticTests/viaYul/array_storage_index_boundary_test.sol

@@ -10,7 +10,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // test_boundary_check(uint256,uint256): 10, 11 -> FAILURE, hex"4e487b71", 0x32
 // test_boundary_check(uint256,uint256): 10, 9 -> 0

test/libsolidity/semanticTests/viaYul/array_storage_index_zeroed_test.sol

@@ -50,7 +50,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // test_zeroed_indicies(uint256): 1 ->
 // test_zeroed_indicies(uint256): 5 ->

test/libsolidity/semanticTests/viaYul/array_storage_length_access.sol

@@ -7,7 +7,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // set_get_length(uint256): 0 -> 0
 // set_get_length(uint256): 1 -> 1

test/libsolidity/semanticTests/viaYul/array_storage_pop_zero_length.sol

@@ -6,6 +6,6 @@ contract C {
 }
 // ====
 // EVMVersion: >=petersburg
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // popEmpty() -> FAILURE, hex"4e487b71", 0x31

test/libsolidity/semanticTests/viaYul/array_storage_push_empty.sol

@@ -9,7 +9,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // EVMVersion: >=petersburg
 // ----
 // pushEmpty(uint256): 128

test/libsolidity/semanticTests/viaYul/array_storage_push_empty_length_address.sol

@@ -10,7 +10,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // EVMVersion: >=petersburg
 // ----
 // set_get_length(uint256): 0 -> 0

test/libsolidity/semanticTests/viaYul/array_storage_push_pop.sol

@@ -9,7 +9,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // set_get_length(uint256): 0 -> 0
 // set_get_length(uint256): 1 -> 0

test/libsolidity/semanticTests/viaYul/assert.sol

@@ -14,7 +14,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(bool): true -> true

test/libsolidity/semanticTests/viaYul/assert_and_require.sol

@@ -11,7 +11,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(bool): true -> true

test/libsolidity/semanticTests/viaYul/comparison.sol

@@ -37,7 +37,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // f(address): 0x1234 -> false
 // f(address): 0x00 -> true

test/libsolidity/semanticTests/viaYul/comparison_functions.sol

@@ -1,9 +1,11 @@
 contract C {
+	// If these two functions are identical, the optimiser
+	// on the old codegen path can deduplicate them, and breaking the test.
 	function internal1() internal pure returns (bool) {
 		return true;
 	}
 	function internal2() internal pure returns (bool) {
-		return true;
+		return false;
 	}
 
 	function equal() public pure returns (bool same, bool diff, bool inv) {
@@ -23,7 +25,7 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // equal() -> true, false, false

test/libsolidity/semanticTests/viaYul/conversion/explicit_cast_assignment.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 0x78

test/libsolidity/semanticTests/viaYul/conversion/explicit_cast_function_call.sol

@@ -7,7 +7,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // g() -> 0x1234567800000000000000000000000000000000000000000000000000000000

test/libsolidity/semanticTests/viaYul/conversion/explicit_cast_local_assignment.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(uint256): 0x12345678 -> 0x78

test/libsolidity/semanticTests/viaYul/conversion/implicit_cast_assignment.sol

@@ -9,7 +9,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 0x78

test/libsolidity/semanticTests/viaYul/conversion/implicit_cast_function_call.sol

@@ -12,7 +12,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // g() -> 0x78

test/libsolidity/semanticTests/viaYul/conversion/implicit_cast_local_assignment.sol

@@ -8,7 +8,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 0x78

test/libsolidity/semanticTests/viaYul/delete.sol

@@ -19,7 +19,7 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // call_deleted_internal_func() -> FAILURE, hex"4e487b71", 0x51

test/libsolidity/semanticTests/viaYul/function_entry_checks.sol

@@ -17,7 +17,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 0

test/libsolidity/semanticTests/viaYul/if.sol

@@ -60,7 +60,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(bool): 0 -> 23

test/libsolidity/semanticTests/viaYul/keccak.sol

@@ -8,7 +8,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // keccak1() -> 0x64e604787cbf194841e7b68d7cd28786f6c9a0a3ab9f8b0a0e87cb4387ab0107
 // keccak2() -> 0x64e604787cbf194841e7b68d7cd28786f6c9a0a3ab9f8b0a0e87cb4387ab0107

test/libsolidity/semanticTests/viaYul/local_address_assignment.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(address): 0x1234 -> 0x1234

test/libsolidity/semanticTests/viaYul/local_assignment.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(uint256): 6 -> 6

test/libsolidity/semanticTests/viaYul/local_bool_assignment.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(bool): true -> true

test/libsolidity/semanticTests/viaYul/loops/break.sol

@@ -24,7 +24,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 2

test/libsolidity/semanticTests/viaYul/loops/continue.sol

@@ -30,7 +30,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 11

test/libsolidity/semanticTests/viaYul/loops/return.sol

@@ -27,7 +27,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 1

test/libsolidity/semanticTests/viaYul/loops/simple.sol

@@ -30,7 +30,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 1024

test/libsolidity/semanticTests/viaYul/mapping_string_key.sol

@@ -5,6 +5,6 @@ contract C {
 	}
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // set(string): 0x20, 32, "01234567890123456789012345678901" ->

test/libsolidity/semanticTests/viaYul/msg_sender.sol

@@ -6,7 +6,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // test() -> true

test/libsolidity/semanticTests/viaYul/return.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 7

test/libsolidity/semanticTests/viaYul/return_and_convert.sol

@@ -6,7 +6,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 255

test/libsolidity/semanticTests/viaYul/short_circuit.sol

@@ -9,7 +9,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // or(uint256): 0 -> true, 0

test/libsolidity/semanticTests/viaYul/simple_assignment.sol

@@ -5,7 +5,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(uint256,uint256): 5, 6 -> 5, 6

test/libsolidity/semanticTests/viaYul/simple_inline_asm.sol

@@ -12,7 +12,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 6

test/libsolidity/semanticTests/viaYul/smoke_test.sol

@@ -1,7 +1,7 @@
 contract C {
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // allowNonExistingFunctions: true
 // ----

test/libsolidity/semanticTests/viaYul/storage/mappings.sol

@@ -29,7 +29,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // ----
 // test_simple(uint256): 0 -> 3, 4, 5
 // test_simple(uint256): 1 -> 3, 4, 5

test/libsolidity/semanticTests/viaYul/storage/packed_storage.sol

@@ -11,7 +11,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f(uint8): 6 -> 9

test/libsolidity/semanticTests/viaYul/storage/simple_storage.sol

@@ -11,7 +11,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // setX(uint256): 6 -> 6

test/libsolidity/semanticTests/viaYul/string_format.sol

@@ -5,7 +5,7 @@ contract C {
 	function h() external pure returns (bytes4) { return 0xcafecafe; }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f1() -> 0x20, 6, left(0x616263616263)

test/libsolidity/semanticTests/viaYul/string_literals.sol

@@ -19,7 +19,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // short_dyn() -> 0x20, 3, "abc"

test/libsolidity/semanticTests/viaYul/various_inline_asm.sol

@@ -18,7 +18,7 @@ contract C {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 70

test/libsolidity/semanticTests/viaYul/virtual_functions.sol

@@ -24,7 +24,7 @@ contract C is X {
     }
 }
 // ====
-// compileViaYul: true
+// compileViaYul: also
 // compileToEwasm: also
 // ----
 // f() -> 3

test/libsolidity/smtCheckerTests/operators/compound_bitwise_string_literal.sol

@@ -0,0 +1,17 @@
+pragma experimental SMTChecker;
+
+contract C {
+    function f() public pure {
+        bytes memory y = "def";
+        y[0] &= "d";
+        assert(y[0] == "d");
+
+        y[0] |= "e";
+        assert(y[0] == "d"); // fails
+
+        y[0] ^= "f";
+        assert(y[0] == (byte("d") | byte("e")) ^ byte("f"));
+    }
+}
+// ----
+// Warning 6328: (189-208): CHC: Assertion violation happens here.

test/libsolidity/smtCheckerTests/operators/compound_bitwise_string_literal_2.sol

@@ -0,0 +1,17 @@
+pragma experimental SMTChecker;
+
+contract C {
+    function f() public pure {
+        bytes3 y = "def";
+        y &= "def";
+        assert(y == "def");
+
+        y |= "dee";
+        assert(y == "def"); // fails
+
+        y ^= "fed";
+        assert(y == (bytes3("def") | bytes3("dee")) ^ bytes3("fed"));
+    }
+}
+// ----
+// Warning 6328: (180-198): CHC: Assertion violation happens here.

test/libsolidity/smtCheckerTests/operators/compound_bitwise_string_literal_3.sol

@@ -0,0 +1,21 @@
+pragma experimental SMTChecker;
+
+contract C {
+    function f() public pure {
+        bytes32 y = "abcdefghabcdefghabcdefghabcdefgh";
+        bytes32 z = y;
+        y &= "bcdefghabcdefghabcdefghabcdefgha";
+        z &= "bcdefghabcdefghabcdefghabcdefgha";
+        assert(y == "abcdefghabcdefghabcdefghabcdefgh"); // fails
+
+        y |= "cdefghabcdefghabcdefghabcdefghab";
+        z |= "cdefghabcdefghabcdefghabcdefghab";
+        assert(y == "abcdefghabcdefghabcdefghabcd"); // fails
+
+        y ^= "abcdefghabcdefghabcdefghabcdefgh";
+        assert(y == z ^ "abcdefghabcdefghabcdefghabcdefgh");
+    }
+}
+// ----
+// Warning 6328: (262-309): CHC: Assertion violation happens here.
+// Warning 6328: (427-470): CHC: Assertion violation happens here.