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

test/libsolidity/semanticTests/array/array_copy_storage_abi_signed.sol

@@ -16,5 +16,7 @@ contract c {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // test() -> 0x20, 0x8, -1, -1, 8, -16, -2, 6, 8, -1

test/libsolidity/semanticTests/array/array_copy_storage_to_memory.sol

@@ -6,5 +6,7 @@ contract C {
         return (b[0], b.length);
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // f() -> 1, 3

test/libsolidity/semanticTests/array/byte_array_pop_copy_long.sol

@@ -8,5 +8,7 @@ contract c {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // test() -> 0x20, 29, 0x0303030303030303030303030303030303030303030303030303030303000000

test/libsolidity/semanticTests/array/byte_array_pop_masking_long.sol

@@ -8,5 +8,7 @@ contract c {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // test() -> 0x20, 33, 0x303030303030303030303030303030303030303030303030303030303030303, 0x0300000000000000000000000000000000000000000000000000000000000000

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

@@ -0,0 +1,21 @@
+contract C {
+    uint72[5][] a;
+
+    function f() public returns (uint72, uint72, uint72, uint72, uint72, uint72, uint72) {
+        for (uint i = 0; i < 4; i++)
+            a.push();
+        a[0][0] = 1;
+        a[0][3] = 2;
+        a[1][1] = 3;
+        a[1][4] = 4;
+        a[2][0] = 5;
+        a[3][2] = 6;
+        a[3][3] = 7;
+        uint72[5][] memory m = a;
+        return (m[0][0], m[0][3], m[1][1], m[1][4], m[2][0], m[3][2], m[3][3]);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() -> 1, 2, 3, 4, 5, 6, 7

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

@@ -0,0 +1,13 @@
+pragma experimental ABIEncoderV2;
+contract C {
+    bytes[] a;
+
+    function f() public returns (bytes[] memory) {
+        a.push("abc");
+        a.push("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVXYZ");
+        bytes[] memory m = a;
+        return m;
+    }
+}
+// ----
+// f() -> 0x20, 0x02, 0x40, 0x80, 3, 0x6162630000000000000000000000000000000000000000000000000000000000, 0x99, 44048183304486788312148433451363384677562265908331949128489393215789685032262, 32241931068525137014058842823026578386641954854143559838526554899205067598957, 49951309422467613961193228765530489307475214998374779756599339590522149884499, 0x54555658595a6162636465666768696a6b6c6d6e6f707172737475767778797a, 0x4142434445464748494a4b4c4d4e4f5051525354555658595a00000000000000

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

@@ -0,0 +1,22 @@
+contract C {
+    uint72[5][] a;
+
+    function f() public returns (uint72, uint72, uint72, uint72, uint72, uint72, uint72) {
+        for (uint i = 0; i < 4; i++)
+            a.push();
+        a[0][0] = 1;
+        a[0][3] = 2;
+        a[1][1] = 3;
+        a[1][4] = 4;
+        a[2][0] = 5;
+        a[3][2] = 6;
+        a[3][3] = 7;
+        uint72[5][] storage a_ = a;
+        uint72[5][] memory m = a_;
+        return (m[0][0], m[0][3], m[1][1], m[1][4], m[2][0], m[3][2], m[3][3]);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() -> 1, 2, 3, 4, 5, 6, 7

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

@@ -0,0 +1,26 @@
+contract C {
+    struct T { uint8 x; uint8 y; uint[] z; }
+    T[3][] a;
+
+    function f() public returns (uint8, uint8, uint, uint, uint, uint8, uint8, uint, uint, uint) {
+        a.push();
+        a.push();
+        a[0][1].x = 11;
+        a[0][1].y = 12;
+        a[0][1].z.push(1);
+        a[0][1].z.push(2);
+        a[0][1].z.push(3);
+        a[1][2].x = 21;
+        a[1][2].y = 22;
+        a[1][2].z.push(4);
+        a[1][2].z.push(5);
+        a[1][2].z.push(6);
+        T[3][] memory m = a;
+        return (
+            m[0][1].x, m[0][1].y, m[0][1].z[0], m[0][1].z[1], m[0][1].z[2],
+            m[1][2].x, m[1][2].y, m[1][2].z[0], m[1][2].z[1], m[1][2].z[2]
+        );
+    }
+}
+// ----
+// f() -> 11, 0x0c, 1, 2, 3, 0x15, 22, 4, 5, 6

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

@@ -0,0 +1,15 @@
+contract C {
+    uint8[33] a;
+
+    function f() public returns (uint8, uint8, uint8) {
+        a[0] = 2;
+        a[16] = 3;
+        a[32] = 4;
+        uint8[33] memory m = a;
+        return (m[0], m[16], m[32]);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() -> 2, 3, 4

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

@@ -0,0 +1,17 @@
+contract C {
+    uint8[] a;
+
+    function f() public returns (uint8, uint8, uint8) {
+        for (uint i = 0; i < 33; i++)
+            a.push(7);
+        a[0] = 2;
+        a[16] = 3;
+        a[32] = 4;
+        uint8[] memory m = a;
+        return (m[0], m[16], m[32]);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() -> 2, 3, 4

test/libsolidity/semanticTests/array/delete_on_array_of_structs.sol

@@ -16,5 +16,7 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> true # This code interprets x as an array length and thus will go out of gas. neither of the two should throw due to out-of-bounds access #

test/libsolidity/semanticTests/array/memory_arrays_dynamic_index_access_write.sol

@@ -15,5 +15,7 @@ contract Test {
         return set(data)[1];
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // f() -> 0x20, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x07

test/libsolidity/semanticTests/array/push_no_args_struct.sol

@@ -31,6 +31,8 @@ contract C {
 	}
 
 }
+// ====
+// compileViaYul: also
 // ----
 // l() -> 0
 // f(uint256): 42 ->

test/libsolidity/semanticTests/builtinFunctions/iterated_keccak256_with_bytes.sol

@@ -8,5 +8,7 @@ contract c {
         return keccak256(abi.encodePacked("b", keccak256(data), "a"));
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // foo() -> 0xb338eefce206f9f57b83aa738deecd5326dc4b72dd81ee6a7c621a6facb7acdc

test/libsolidity/semanticTests/builtinFunctions/keccak256_with_bytes.sol

@@ -9,5 +9,7 @@ contract c {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // foo() -> true

test/libsolidity/semanticTests/constants/asm_constant_file_level.sol

@@ -0,0 +1,9 @@
+address constant e = 0x1212121212121212121212121000002134593163;
+
+contract C {
+  function f() public returns (address z) {
+    assembly { z := e }
+  }
+}
+// ----
+// f() -> 0x1212121212121212121212121000002134593163

test/libsolidity/semanticTests/constants/constant_string_at_file_level.sol

@@ -0,0 +1,33 @@
+bytes constant a = "\x03\x01\x02";
+bytes constant b = hex"030102";
+string constant c = "hello";
+uint256 constant x = 56;
+enum ActionChoices {GoLeft, GoRight, GoStraight, Sit}
+ActionChoices constant choices = ActionChoices.GoRight;
+bytes32 constant st = "abc\x00\xff__";
+
+contract C {
+    function f() public returns (bytes memory) {
+        return a;
+    }
+
+    function g() public returns (bytes memory) {
+        return b;
+    }
+
+    function h() public returns (bytes memory) {
+        return bytes(c);
+    }
+
+    function i() public returns (uint, ActionChoices, bytes32) {
+        return (x, choices, st);
+    }
+}
+
+// ====
+// compileViaYul: also
+// ----
+// f() -> 0x20, 3, "\x03\x01\x02"
+// g() -> 0x20, 3, "\x03\x01\x02"
+// h() -> 0x20, 5, "hello"
+// i() -> 0x38, 1, 0x61626300ff5f5f00000000000000000000000000000000000000000000000000

test/libsolidity/semanticTests/constants/constants_at_file_level_referencing.sol

@@ -0,0 +1,41 @@
+==== Source: s1.sol ====
+
+
+bytes constant a = b;
+bytes constant b = hex"030102";
+
+function fre() pure returns (bytes memory) {
+    return a;
+}
+
+==== Source: s2.sol ====
+
+import "s1.sol";
+
+uint256 constant c = uint8(a[0]) + 2;
+
+contract C {
+    function f() public returns (bytes memory) {
+        return a;
+    }
+
+    function g() public returns (bytes memory) {
+        return b;
+    }
+
+    function h() public returns (uint) {
+        return c;
+    }
+
+    function i() public returns (bytes memory) {
+        return fre();
+    }
+}
+
+// ====
+// compileViaYul: also
+// ----
+// f() -> 0x20, 3, "\x03\x01\x02"
+// g() -> 0x20, 3, "\x03\x01\x02"
+// h() -> 5
+// i() -> 0x20, 3, "\x03\x01\x02"

test/libsolidity/semanticTests/constants/same_constants_different_files.sol

@@ -0,0 +1,26 @@
+==== Source: s1.sol ====
+
+
+uint constant a = 89;
+
+function fre() pure returns (uint) {
+    return a;
+}
+
+==== Source: s2.sol ====
+
+import {a as b, fre} from "s1.sol";
+import "s1.sol" as M;
+
+uint256 constant a = 13;
+
+contract C {
+    function f() public returns (uint, uint, uint, uint) {
+        return (a, fre(), M.a, b);
+    }
+}
+
+// ====
+// compileViaYul: also
+// ----
+// f() -> 0x0d, 0x59, 0x59, 0x59

test/libsolidity/semanticTests/expressions/conditional_expression_storage_memory_2.sol

@@ -23,6 +23,8 @@ contract test {
         return ret;
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // f(bool): true -> 1
 // f(bool): false -> 2

test/libsolidity/semanticTests/functionCall/file_level_call_via_module.sol

@@ -0,0 +1,15 @@
+==== Source: a.sol ====
+function f(uint) pure returns (uint) { return 7; }
+function f(bytes memory x) pure returns (uint) { return x.length; }
+==== Source: b.sol ====
+import "a.sol" as M;
+contract C {
+    function f() public pure returns (uint, uint) {
+        return (M.f(2), M.f("abc"));
+
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() -> 7, 3

test/libsolidity/semanticTests/inlineAssembly/inline_assembly_storage_access_via_pointer.sol

@@ -18,6 +18,8 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> true
 // a() -> 7

test/libsolidity/semanticTests/libraries/using_for_storage_structs.sol

@@ -21,5 +21,7 @@ contract C {
     return (s.f(), h(s));
   }
 }
+// ====
+// compileViaYul: also
 // ----
 // g() -> 7, 7

test/libsolidity/semanticTests/structs/recursive_struct_2.sol

@@ -0,0 +1,26 @@
+contract C {
+    struct S {
+        uint16 v;
+        S[] x;
+    }
+    uint8[77] padding;
+    S s;
+    constructor() {
+         s.v = 21;
+         s.x.push(); s.x.push(); s.x.push();
+         s.x[0].v = 101; s.x[1].v = 102; s.x[2].v = 103;
+    }
+    function f() public returns (uint256 a, uint256 b, uint256 c, uint256 d) {
+       S storage sptr1 = s.x[0];
+       S storage sptr2 = s.x[1];
+       S storage sptr3 = s.x[2];
+       uint256 slot1; uint256 slot2; uint256 slot3;
+       assembly { slot1 := sptr1.slot slot2 := sptr2.slot slot3 := sptr3.slot }
+       delete s;
+       assembly { a := sload(s.slot) b := sload(slot1) c := sload(slot2) d := sload(slot3) }
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() -> 0, 0, 0, 0

test/libsolidity/semanticTests/structs/recursive_structs.sol

@@ -15,5 +15,7 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> 1

test/libsolidity/semanticTests/structs/struct_delete_member.sol

@@ -16,5 +16,7 @@ contract test {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // deleteMember() -> 0

test/libsolidity/semanticTests/structs/struct_delete_storage.sol

@@ -0,0 +1,23 @@
+contract C {
+    struct S {
+        uint256 x;
+        uint128 y;
+        uint32 z;
+    }
+    uint8 b = 23;
+    S s;
+    uint8 a = 17;
+    function f() public {
+        s.x = 42; s.y = 42; s.y = 42;
+        delete s;
+        assert(s.x == 0);
+        assert(s.y == 0);
+        assert(s.z == 0);
+        assert(b == 23);
+        assert(a == 17);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() ->

test/libsolidity/semanticTests/structs/struct_delete_storage_with_array.sol

@@ -0,0 +1,47 @@
+pragma experimental ABIEncoderV2;
+
+contract C {
+    struct S {
+        uint128 a;
+        uint256[] x;
+        uint240 b;
+    }
+    uint8 b = 23;
+    S s;
+    uint8 a = 17;
+    function f() public {
+        delete s;
+        s.x.push(42); s.x.push(42); s.x.push(42);
+        delete s;
+        assert(s.x.length == 0);
+        uint256[] storage x = s.x;
+        assembly { sstore(x.slot, 3) }
+        assert(s.x[0] == 0);
+        assert(s.x[1] == 0);
+        assert(s.x[2] == 0);
+        assert(b == 23);
+        assert(a == 17);
+    }
+
+    function g() public {
+        delete s;
+        s.x.push(42); s.x.push(42); s.x.push(42);
+        s.a = 1; s.b = 2;
+        delete s.x;
+        assert(s.x.length == 0);
+        uint256[] storage x = s.x;
+        assembly { sstore(x.slot, 3) }
+        assert(s.x[0] == 0);
+        assert(s.x[1] == 0);
+        assert(s.x[2] == 0);
+        assert(b == 23);
+        assert(a == 17);
+        assert(s.a == 1);
+        assert(s.b == 2);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// f() ->
+// g() ->

test/libsolidity/semanticTests/structs/struct_delete_struct_in_mapping.sol

@@ -14,5 +14,7 @@ contract test {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // deleteIt() -> 0

test/libsolidity/semanticTests/structs/struct_reference.sol

@@ -18,6 +18,8 @@ contract test {
         inner.recursive[0].z = inner.recursive[1].z + 1;
     }
 }
+// ====
+// compileViaYul: also
 // ----
 // check() -> false
 // set() ->

test/libsolidity/semanticTests/various/typed_multi_variable_declaration.sol

@@ -22,5 +22,7 @@ contract C {
     }
 }
 
+// ====
+// compileViaYul: also
 // ----
 // f() -> true