Add some comments

1 files changed, 1 insertions, 0 deletions

diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index 189f9e6ccab..24b679d07cc 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -1035,6 +1035,7 @@ impl Step for Compiletest {
         flags.push("-Zunstable-options".to_string());
         flags.push(builder.config.cmd.rustc_args().join(" "));
 
+        // Don't use LLD here since we want to test that rustc finds and uses a linker by itself.
         if let Some(linker) = builder.linker(target, false) {
             cmd.arg("--linker").arg(linker);
         }