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/context/evmla_data.rs

@@ -0,0 +1,34 @@
+//!
+//! The LLVM IR generator EVM legacy assembly data.
+//!
+
+use crate::eravm::context::argument::Argument;
+
+///
+/// The LLVM IR generator EVM legacy assembly data.
+///
+/// Describes some data that is only relevant to the EVM legacy assembly.
+///
+#[derive(Debug, Clone)]
+pub struct EVMLAData<'ctx> {
+    /// The Solidity compiler version.
+    /// Some instruction behave differenly depending on the version.
+    pub version: semver::Version,
+    /// The static stack allocated for the current function.
+    pub stack: Vec<Argument<'ctx>>,
+}
+
+impl<'ctx> EVMLAData<'ctx> {
+    /// The default stack size.
+    pub const DEFAULT_STACK_SIZE: usize = 64;
+
+    ///
+    /// A shortcut constructor.
+    ///
+    pub fn new(version: semver::Version) -> Self {
+        Self {
+            version,
+            stack: Vec::with_capacity(Self::DEFAULT_STACK_SIZE),
+        }
+    }
+}