2 files changed, 5 insertions, 6 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs
index b604f5139c8..e63043b2122 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs
@@ -127,7 +127,6 @@ pub(crate) mod Enzyme_AD {
         );
         pub(crate) fn EnzymeTypeTreeToString(arg1: CTypeTreeRef) -> *const c_char;
         pub(crate) fn EnzymeTypeTreeToStringFree(arg1: *const c_char);
-        pub(crate) fn EnzymeGetMaxTypeDepth() -> ::std::os::raw::c_uint;
     }
 
     unsafe extern "C" {
diff --git a/compiler/rustc_codegen_llvm/src/typetree.rs b/compiler/rustc_codegen_llvm/src/typetree.rs
index 1a54884f6c5..7e263503700 100644
--- a/compiler/rustc_codegen_llvm/src/typetree.rs
+++ b/compiler/rustc_codegen_llvm/src/typetree.rs
@@ -1,5 +1,5 @@
 use rustc_ast::expand::typetree::FncTree;
-#[cfg(llvm_enzyme)]
+#[cfg(feature = "llvm_enzyme")]
 use {
     crate::attributes,
     rustc_ast::expand::typetree::TypeTree as RustTypeTree,
@@ -8,7 +8,7 @@ use {
 
 use crate::llvm::{self, Value};
 
-#[cfg(llvm_enzyme)]
+#[cfg(feature = "llvm_enzyme")]
 fn to_enzyme_typetree(
     rust_typetree: RustTypeTree,
     _data_layout: &str,
@@ -18,7 +18,7 @@ fn to_enzyme_typetree(
     process_typetree_recursive(&mut enzyme_tt, &rust_typetree, &[], llcx);
     enzyme_tt
 }
-#[cfg(llvm_enzyme)]
+#[cfg(feature = "llvm_enzyme")]
 fn process_typetree_recursive(
     enzyme_tt: &mut llvm::TypeTree,
     rust_typetree: &RustTypeTree,
@@ -56,7 +56,7 @@ fn process_typetree_recursive(
     }
 }
 
-#[cfg(llvm_enzyme)]
+#[cfg(feature = "llvm_enzyme")]
 pub(crate) fn add_tt<'ll>(
     llmod: &'ll llvm::Module,
     llcx: &'ll llvm::Context,
@@ -111,7 +111,7 @@ pub(crate) fn add_tt<'ll>(
     }
 }
 
-#[cfg(not(llvm_enzyme))]
+#[cfg(not(feature = "llvm_enzyme"))]
 pub(crate) fn add_tt<'ll>(
     _llmod: &'ll llvm::Module,
     _llcx: &'ll llvm::Context,