1 files changed, 0 insertions, 13 deletions
diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs
index 8b1913cfa75..79e80db6f55 100644
--- a/compiler/rustc_codegen_llvm/src/lib.rs
+++ b/compiler/rustc_codegen_llvm/src/lib.rs
@@ -30,7 +30,6 @@ use context::SimpleCx;
 use errors::ParseTargetMachineConfig;
 use llvm_util::target_config;
 use rustc_ast::expand::allocator::AllocatorKind;
-use rustc_ast::expand::autodiff_attrs::AutoDiffItem;
 use rustc_codegen_ssa::back::lto::{SerializedModule, ThinModule};
 use rustc_codegen_ssa::back::write::{
     CodegenContext, FatLtoInput, ModuleConfig, TargetMachineFactoryConfig, TargetMachineFactoryFn,
@@ -168,27 +167,15 @@ impl WriteBackendMethods for LlvmCodegenBackend {
         let stats = llvm::build_string(|s| unsafe { llvm::LLVMRustPrintStatistics(s) }).unwrap();
         print!("{stats}");
     }
-    fn run_link(
-        cgcx: &CodegenContext<Self>,
-        dcx: DiagCtxtHandle<'_>,
-        modules: Vec<ModuleCodegen<Self::Module>>,
-    ) -> Result<ModuleCodegen<Self::Module>, FatalError> {
-        back::write::link(cgcx, dcx, modules)
-    }
     fn run_and_optimize_fat_lto(
         cgcx: &CodegenContext<Self>,
         exported_symbols_for_lto: &[String],
         each_linked_rlib_for_lto: &[PathBuf],
         modules: Vec<FatLtoInput<Self>>,
-        diff_fncs: Vec<AutoDiffItem>,
     ) -> Result<ModuleCodegen<Self::Module>, FatalError> {
         let mut module =
             back::lto::run_fat(cgcx, exported_symbols_for_lto, each_linked_rlib_for_lto, modules)?;
 
-        if !diff_fncs.is_empty() {
-            builder::autodiff::differentiate(&module, cgcx, diff_fncs)?;
-        }
-
         let dcx = cgcx.create_dcx();
         let dcx = dcx.handle();
         back::lto::run_pass_manager(cgcx, dcx, &mut module, false)?;