cjit update

packages/cjit/src/StackValue.zig

@@ -0,0 +1,20 @@
+const std = @import("std");
+const Self = @This();
+
+const types = @import("types.zig");
+const x86_64 = @import("x86_64.zig");
+
+const Register = x86_64.Register;
+const Type = types.Type;
+
+pub const Value = union(enum) {
+    register: Register,
+    constant: u64,
+    symbol: []const u8,
+    /// Displacement in bytes from current value of base pointer register.
+    stack: i32,
+    cpu_flags: void,
+};
+
+c_type: Type,
+value: Value,