wip evm builtins

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

crates/llvm-context/src/lib.rs

@@ -19,6 +19,7 @@ pub use self::polkavm::context::function::declaration::Declaration as PolkaVMFun
 pub use self::polkavm::context::function::intrinsics::Intrinsics as PolkaVMIntrinsicFunction;
 pub use self::polkavm::context::function::llvm_runtime::LLVMRuntime as PolkaVMLLVMRuntime;
 pub use self::polkavm::context::function::r#return::Return as PolkaVMFunctionReturn;
+pub use self::polkavm::context::function::runtime::arithmetics::Addition as PolkaVMAdditionFunction;
 pub use self::polkavm::context::function::runtime::arithmetics::Division as PolkaVMDivisionFunction;
 pub use self::polkavm::context::function::runtime::arithmetics::Remainder as PolkaVMRemainderFunction;
 pub use self::polkavm::context::function::runtime::arithmetics::SignedDivision as PolkaVMSignedDivisionFunction;

crates/llvm-context/src/polkavm/context/function/runtime/arithmetics.rs

@@ -7,6 +7,65 @@ use crate::polkavm::context::Context;
 use crate::polkavm::Dependency;
 use crate::polkavm::WriteLLVM;
 
+/// Implements the division operator according to the EVM specification.
+pub struct Addition;
+
+impl<D> RuntimeFunction<D> for Addition
+where
+    D: Dependency + Clone,
+{
+    const NAME: &'static str = "__revive_addition";
+
+    fn r#type<'ctx>(context: &Context<'ctx, D>) -> inkwell::types::FunctionType<'ctx> {
+        context.void_type().fn_type(
+            &[
+                context.llvm().ptr_type(Default::default()).into(),
+                context.llvm().ptr_type(Default::default()).into(),
+                context.llvm().ptr_type(Default::default()).into(),
+            ],
+            false,
+        )
+    }
+
+    fn emit_body<'ctx>(
+        &self,
+        context: &mut Context<'ctx, D>,
+    ) -> anyhow::Result<Option<inkwell::values::BasicValueEnum<'ctx>>> {
+        let result_pointer = Self::paramater(context, 0).into_pointer_value();
+        let operand_1 = Self::paramater(context, 1).into_pointer_value();
+        let operand_2 = Self::paramater(context, 2).into_pointer_value();
+
+        let operand_1 = context
+            .builder()
+            .build_load(context.word_type(), operand_1, "operand_1")?
+            .into_int_value();
+        let operand_2 = context
+            .builder()
+            .build_load(context.word_type(), operand_2, "operand_2")?
+            .into_int_value();
+        let result = context
+            .builder()
+            .build_int_add(operand_1, operand_2, "addition_result")?;
+
+        context.builder().build_store(result_pointer, result)?;
+
+        Ok(None)
+    }
+}
+
+impl<D> WriteLLVM<D> for Addition
+where
+    D: Dependency + Clone,
+{
+    fn declare(&mut self, context: &mut Context<D>) -> anyhow::Result<()> {
+        <Self as RuntimeFunction<_>>::declare(self, context)
+    }
+
+    fn into_llvm(self, context: &mut Context<D>) -> anyhow::Result<()> {
+        <Self as RuntimeFunction<_>>::emit(&self, context)
+    }
+}
+
 /// Implements the division operator according to the EVM specification.
 pub struct Division;
 

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

@@ -5,6 +5,7 @@ use inkwell::values::BasicValue;
 use crate::polkavm::context::runtime::RuntimeFunction;
 use crate::polkavm::context::Context;
 use crate::polkavm::Dependency;
+use crate::PolkaVMAdditionFunction;
 use crate::PolkaVMDivisionFunction;
 use crate::PolkaVMRemainderFunction;
 use crate::PolkaVMSignedDivisionFunction;
@@ -13,16 +14,20 @@ use crate::PolkaVMSignedRemainderFunction;
 /// Translates the arithmetic addition.
 pub fn addition<'ctx, D>(
     context: &mut Context<'ctx, D>,
-    operand_1: inkwell::values::IntValue<'ctx>,
-    operand_2: inkwell::values::IntValue<'ctx>,
-) -> anyhow::Result<inkwell::values::BasicValueEnum<'ctx>>
+    binding: inkwell::values::PointerValue<'ctx>,
+    operand_1: inkwell::values::PointerValue<'ctx>,
+    operand_2: inkwell::values::PointerValue<'ctx>,
+) -> anyhow::Result<()>
 where
     D: Dependency + Clone,
 {
-    Ok(context
-        .builder()
-        .build_int_add(operand_1, operand_2, "addition_result")?
-        .as_basic_value_enum())
+    let declaration = <PolkaVMAdditionFunction as RuntimeFunction<D>>::declaration(context);
+    context.build_call(
+        declaration,
+        &[binding.into(), operand_1.into(), operand_2.into()],
+        "add",
+    );
+    Ok(())
 }
 
 /// Translates the arithmetic subtraction.