rustc/driver: don't sort base if it only has one element

ljedrz · ljedrz · commit 292cc1e36fca · 2018-10-13T10:09:42.000+02:00
diff --git a/src/librustc_driver/driver.rs b/src/librustc_driver/driver.rs
@@ -1578,9 +1578,10 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<c
             base.push(::rustc_codegen_utils::link::default_output_for_target(
                 session,
             ));
+        } else {
+            base.sort();
+            base.dedup();
         }
-        base.sort();
-        base.dedup();
     }
 
     base.retain(|crate_type| {

Original file line number	Diff line number	Diff line change
`@@ -1578,9 +1578,10 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<c`
`1578`	`1578`	`base.push(::rustc_codegen_utils::link::default_output_for_target(`
`1579`	`1579`	`session,`
`1580`	`1580`	`));`
	`1581`	`+ } else {`
	`1582`	`+ base.sort();`
	`1583`	`+ base.dedup();`
`1581`	`1584`	`}`
`1582`		`- base.sort();`
`1583`		`- base.dedup();`
`1584`	`1585`	`}`
`1585`	`1586`
`1586`	`1587`	`base.retain(\|crate_type\| {`