implement self balance

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>

Cargo.toml

@@ -66,7 +66,7 @@ log = { version = "0.4" }
 # polkadot-sdk and friends
 codec = { version = "3.6.12", default-features = false, package = "parity-scale-codec" }
 scale-info = { version = "2.11.1", default-features = false }
-polkadot-sdk = { git = "https://github.com/paritytech/polkadot-sdk", rev = "d7b575338b2c647e04fc48bfbe00ea8f492fb580" }
+polkadot-sdk = { git = "https://github.com/paritytech/polkadot-sdk", rev = "868a36bd186f3ef9535ebf7deceac1b2fab19fcb" }
 
 # llvm
 [workspace.dependencies.inkwell]

crates/integration/contracts/Value.sol

@@ -7,6 +7,7 @@ pragma solidity ^0.8;
     "actions": [
         {
             "Instantiate": {
+                "value": 1024,
                 "code": {
                     "Solidity": {
                         "contract": "Value"
@@ -22,16 +23,30 @@ pragma solidity ^0.8;
                 "value": 123,
                 "data": "3fa4f245"
             }
+        },
+        {
+            "Call": {
+                "dest": {
+                    "Instantiated": 0
+                },
+                "data": "52da5fa0"
+            }
         }
     ]
 }
 */
 
 contract Value {
+    constructor() payable {}
+
     function value() public payable returns (uint ret) {
         ret = msg.value;
     }
 
+    function balance_self() public view returns (uint ret) {
+        ret = address(this).balance;
+    }
+
     function balance_of(address _address) public view returns (uint ret) {
         ret = _address.balance;
     }

crates/integration/src/cases.rs

@@ -209,9 +209,11 @@ case!("Call.sol", "Call", vec![], call_constructor);
 sol!(
     contract Value {
         function balance_of(address _address) public view returns (uint ret);
+        function balance_self() public view returns (uint ret);
     }
 );
 case!("Value.sol", Value, balance_ofCall, value_balance_of, address: Address);
+case!("Value.sol", Value, balance_selfCall, value_balance_self,);
 
 sol!(
     contract Bitwise {

crates/integration/src/tests.rs

@@ -26,7 +26,6 @@ test_spec!(hash_keccak_256, "TestSha3", "Crypto.sol");
 test_spec!(erc20, "ERC20", "ERC20.sol");
 test_spec!(computation, "Computation", "Computation.sol");
 test_spec!(msize, "MSize", "MSize.sol");
-test_spec!(transferred_value, "Value", "Value.sol");
 test_spec!(sha1, "SHA1", "SHA1.sol");
 test_spec!(block, "Block", "Block.sol");
 test_spec!(mcopy, "MCopy", "MCopy.sol");
@@ -34,6 +33,7 @@ test_spec!(events, "Events", "Events.sol");
 test_spec!(storage, "Storage", "Storage.sol");
 test_spec!(mstore8, "MStore8", "MStore8.sol");
 test_spec!(address, "Context", "Context.sol");
+test_spec!(balance, "Value", "Value.sol");
 
 fn instantiate(path: &str, contract: &str) -> Vec<SpecsAction> {
     vec![Instantiate {

crates/llvm-context/src/polkavm/evm/ether_gas.rs

@@ -56,16 +56,32 @@ where
         context.xlen_type(),
         "balance",
     )?;
-    let address = context.builder().build_ptr_to_int(
+    let _address = context.builder().build_ptr_to_int(
         address_pointer.value,
         context.xlen_type(),
         "address",
     )?;
 
-    context.build_runtime_call(
+    context.build_runtime_call(runtime_api::imports::BALANCE, &[balance.into()]);
-        runtime_api::imports::BALANCE,
+
-        &[address.into(), balance.into()],
+    context.build_load(balance_pointer, "balance")
-    );
+}
+
+/// Translates the `selfbalance` instructions.
+pub fn self_balance<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+) -> anyhow::Result<inkwell::values::BasicValueEnum<'ctx>>
+where
+    D: Dependency + Clone,
+{
+    let balance_pointer = context.build_alloca(context.word_type(), "balance_pointer");
+    let balance = context.builder().build_ptr_to_int(
+        balance_pointer.value,
+        context.xlen_type(),
+        "balance",
+    )?;
+
+    context.build_runtime_call(runtime_api::imports::BALANCE, &[balance.into()]);
 
     context.build_load(balance_pointer, "balance")
 }

crates/runner/src/runtime.rs

@@ -78,7 +78,6 @@ impl pallet_revive::Config for Runtime {
     type UnsafeUnstableInterface = UnstableInterface;
     type UploadOrigin = EnsureSigned<AccountId32>;
     type InstantiateOrigin = EnsureSigned<AccountId32>;
-    type Migrations = ();
     type CodeHashLockupDepositPercent = CodeHashLockupDepositPercent;
     type Debug = ();
 }

crates/runtime-api/src/polkavm_imports.c

@@ -97,7 +97,7 @@ POLKAVM_IMPORT(void, weight_to_fee, uint64_t, uint32_t, uint32_t)
 
 POLKAVM_IMPORT(void, gas_left, uint32_t, uint32_t)
 
-POLKAVM_IMPORT(void, balance, uint32_t, uint32_t)
+POLKAVM_IMPORT(void, balance, uint32_t)
 
 POLKAVM_IMPORT(void, now, uint32_t, uint32_t)
 

crates/solidity/src/evmla/ethereal_ir/function/block/element/mod.rs

@@ -1159,7 +1159,9 @@ where
                 let address = arguments[0].into_int_value();
                 revive_llvm_context::polkavm_evm_ether_gas::balance(context, address).map(Some)
             }
-            InstructionName::SELFBALANCE => todo!(),
+            InstructionName::SELFBALANCE => {
+                revive_llvm_context::polkavm_evm_ether_gas::self_balance(context).map(Some)
+            }
 
             InstructionName::GASLIMIT => {
                 revive_llvm_context::polkavm_evm_contract_context::gas_limit(context).map(Some)

crates/solidity/src/yul/parser/statement/expression/function_call/mod.rs

@@ -912,7 +912,9 @@ impl FunctionCall {
                 let address = arguments[0].into_int_value();
                 revive_llvm_context::polkavm_evm_ether_gas::balance(context, address).map(Some)
             }
-            Name::SelfBalance => todo!(),
+            Name::SelfBalance => {
+                revive_llvm_context::polkavm_evm_ether_gas::self_balance(context).map(Some)
+            }
 
             Name::GasLimit => {
                 revive_llvm_context::polkavm_evm_contract_context::gas_limit(context).map(Some)