Emerge Yul recompiler (#1)

Provide a modified (and incomplete) version of ZKSync zksolc that can compile the most basic contracts

crates/llvm-context/src/eravm/evm/memory.rs

@@ -0,0 +1,87 @@
+//!
+//! Translates the heap memory operations.
+//!
+
+use inkwell::values::BasicValue;
+
+use crate::eravm::context::address_space::AddressSpace;
+use crate::eravm::context::pointer::Pointer;
+use crate::eravm::context::Context;
+use crate::eravm::Dependency;
+
+///
+/// Translates the `mload` instruction.
+///
+/// Uses the main heap.
+///
+pub fn load<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+    offset: inkwell::values::IntValue<'ctx>,
+) -> anyhow::Result<inkwell::values::BasicValueEnum<'ctx>>
+where
+    D: Dependency + Clone,
+{
+    let pointer = Pointer::new_with_offset(
+        context,
+        AddressSpace::Heap,
+        context.field_type(),
+        offset,
+        "memory_load_pointer",
+    );
+    context.build_load(pointer, "memory_load_result")
+}
+
+///
+/// Translates the `mstore` instruction.
+///
+/// Uses the main heap.
+///
+pub fn store<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+    offset: inkwell::values::IntValue<'ctx>,
+    value: inkwell::values::IntValue<'ctx>,
+) -> anyhow::Result<()>
+where
+    D: Dependency + Clone,
+{
+    let pointer = Pointer::new_with_offset(
+        context,
+        AddressSpace::Heap,
+        context.field_type(),
+        offset,
+        "memory_store_pointer",
+    );
+    context.build_store(pointer, value)?;
+    Ok(())
+}
+
+///
+/// Translates the `mstore8` instruction.
+///
+/// Uses the main heap.
+///
+pub fn store_byte<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+    offset: inkwell::values::IntValue<'ctx>,
+    value: inkwell::values::IntValue<'ctx>,
+) -> anyhow::Result<()>
+where
+    D: Dependency + Clone,
+{
+    let offset_pointer = Pointer::new_with_offset(
+        context,
+        AddressSpace::Heap,
+        context.byte_type(),
+        offset,
+        "mstore8_offset_pointer",
+    );
+    context.build_call(
+        context.llvm_runtime().mstore8,
+        &[
+            offset_pointer.value.as_basic_value_enum(),
+            value.as_basic_value_enum(),
+        ],
+        "mstore8_call",
+    );
+    Ok(())
+}