use is_empty() instead of len() == x to determine if structs are empty.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/librustc_codegen_llvm/back/lto.rs b/src/librustc_codegen_llvm/back/lto.rs
index d7297ed4176..8c3fdcb8ecd 100644
--- a/src/librustc_codegen_llvm/back/lto.rs
+++ b/src/librustc_codegen_llvm/back/lto.rs
@@ -237,7 +237,7 @@ fn fat_lto(
     let module: ModuleCodegen<ModuleLlvm> = match costliest_module {
         Some((_cost, i)) => in_memory.remove(i),
         None => {
-            assert!(serialized_modules.len() > 0, "must have at least one serialized module");
+            assert!(!serialized_modules.is_empty(), "must have at least one serialized module");
             let (buffer, name) = serialized_modules.remove(0);
             info!("no in-memory regular modules to choose from, parsing {:?}", name);
             ModuleCodegen {
diff --git a/src/librustc_codegen_llvm/llvm_util.rs b/src/librustc_codegen_llvm/llvm_util.rs
index 6d3498f8b80..0081a75a4da 100644
--- a/src/librustc_codegen_llvm/llvm_util.rs
+++ b/src/librustc_codegen_llvm/llvm_util.rs
@@ -61,7 +61,7 @@ unsafe fn configure_llvm(sess: &Session) {
     let sess_args = cg_opts.chain(tg_opts);
 
     let user_specified_args: FxHashSet<_> =
-        sess_args.clone().map(|s| llvm_arg_to_arg_name(s)).filter(|s| s.len() > 0).collect();
+        sess_args.clone().map(|s| llvm_arg_to_arg_name(s)).filter(|s| !s.is_empty()).collect();
 
     {
         // This adds the given argument to LLVM. Unless `force` is true