diff --git a/fuzz/fuzz_targets/parse_ir.rs b/fuzz/fuzz_targets/parse_ir.rs
index 780e018..6fbdc0a 100644
--- a/fuzz/fuzz_targets/parse_ir.rs
+++ b/fuzz/fuzz_targets/parse_ir.rs
@@ -1,10 +1,9 @@
 #![no_main]
 use libfuzzer_sys::fuzz_target;
 
-use waffle::frontend::wasm_to_ir;
-use wasm_smith::Module;
+use waffle::Module;
 
-fuzz_target!(|module: Module| {
+fuzz_target!(|module: wasm_smith::Module| {
     let _ = env_logger::try_init();
-    let _parsed_module = wasm_to_ir(&module.to_bytes()[..]).unwrap();
+    let _parsed_module = Module::from_wasm_bytes(&module.to_bytes()[..]).unwrap();
 });
diff --git a/src/bin/waffle-util.rs b/src/bin/waffle-util.rs
index eec4fb4..b6037ae 100644
--- a/src/bin/waffle-util.rs
+++ b/src/bin/waffle-util.rs
@@ -4,7 +4,7 @@ use anyhow::Result;
 use log::debug;
 use std::path::PathBuf;
 use structopt::StructOpt;
-use waffle::frontend;
+use waffle::Module;
 
 #[derive(Debug, StructOpt)]
 #[structopt(name = "waffle-util", about = "WAFFLE utility.")]
@@ -38,7 +38,7 @@ fn main() -> Result<()> {
         Command::PrintIR { wasm } => {
             let bytes = std::fs::read(wasm)?;
             debug!("Loaded {} bytes of Wasm data", bytes.len());
-            let module = frontend::wasm_to_ir(&bytes[..])?;
+            let module = Module::from_wasm_bytes(&bytes[..])?;
             println!("{:?}", module);
         }
     }
diff --git a/src/ir.rs b/src/ir.rs
index b60425f..24bf3db 100644
--- a/src/ir.rs
+++ b/src/ir.rs
@@ -1,5 +1,7 @@
 //! Intermediate representation for Wasm.
 
+use crate::frontend;
+use anyhow::Result;
 use wasmparser::{FuncType, Operator, Type};
 
 pub type SignatureId = usize;
@@ -119,3 +121,9 @@ impl<'a> std::default::Default for Terminator<'a> {
         Terminator::None
     }
 }
+
+impl<'a> Module<'a> {
+    pub fn from_wasm_bytes(bytes: &'a [u8]) -> Result<Self> {
+        frontend::wasm_to_ir(bytes)
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index ebcc7de..3541116 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,6 +5,9 @@
 pub use wasm_encoder;
 pub use wasmparser;
 
-pub mod frontend;
-pub mod ir;
-pub mod op_traits;
+mod frontend;
+mod ir;
+mod localssa;
+mod op_traits;
+
+pub use ir::*;
diff --git a/src/localssa.rs b/src/localssa.rs
new file mode 100644
index 0000000..86a3d87
--- /dev/null
+++ b/src/localssa.rs
@@ -0,0 +1,2 @@
+//! Local-to-SSA conversion.
+