diff --git a/src/librustc_codegen_llvm/back/lto.rs b/src/librustc_codegen_llvm/back/lto.rs index 447ba8c8a8ae6..329b0a837ab45 100644 --- a/src/librustc_codegen_llvm/back/lto.rs +++ b/src/librustc_codegen_llvm/back/lto.rs @@ -500,11 +500,11 @@ fn thin_lto( let module_name = module_name_to_str(module_name); // If (1.) the module hasn't changed, and (2.) none of the modules - // it imports from nor exports to have changed, *and* (3.) the - // import and export sets themselves have not changed from the - // previous compile when it was last ThinLTO'ed, then we can re-use - // the post-ThinLTO version of the module. Otherwise, freshly - // perform LTO optimization. + // it imports from have changed, *and* (3.) the import and export + // sets themselves have not changed from the previous compile when + // it was last ThinLTO'ed, then we can re-use the post-ThinLTO + // version of the module. Otherwise, freshly perform LTO + // optimization. // // (Note that globally, the export set is just the inverse of the // import set.) @@ -531,13 +531,8 @@ fn thin_lto( let imports_all_green = curr_imports .iter() .all(|imported_module| green_modules.contains_key(imported_module)); - let exports_all_green = curr_exports - .iter() - .all(|exported_module| green_modules.contains_key(exported_module)); - if imports_all_green && equivalent_as_sets(prev_imports, curr_imports) - && exports_all_green && equivalent_as_sets(prev_exports, curr_exports) { let work_product = green_modules[module_name].clone();