liveness: Remove unnecessary local variable exit_ln

tmiasko · tmiasko · commit 49d1ce00f30a · 2020-09-26T16:44:28.000+02:00
diff --git a/compiler/rustc_passes/src/liveness.rs b/compiler/rustc_passes/src/liveness.rs
@@ -1093,9 +1093,8 @@ impl<'a, 'tcx> Liveness<'a, 'tcx> {
             }
 
             hir::ExprKind::Ret(ref o_e) => {
-                // ignore succ and subst exit_ln:
-                let exit_ln = self.exit_ln;
-                self.propagate_through_opt_expr(o_e.as_ref().map(|e| &**e), exit_ln)
+                // Ignore succ and subst exit_ln.
+                self.propagate_through_opt_expr(o_e.as_ref().map(|e| &**e), self.exit_ln)
             }
 
             hir::ExprKind::Break(label, ref opt_expr) => {

Original file line number	Diff line number	Diff line change
`@@ -1093,9 +1093,8 @@ impl<'a, 'tcx> Liveness<'a, 'tcx> {`
`1093`	`1093`	`}`
`1094`	`1094`
`1095`	`1095`	`hir::ExprKind::Ret(ref o_e) => {`
`1096`		`- // ignore succ and subst exit_ln:`
`1097`		`- let exit_ln = self.exit_ln;`
`1098`		`- self.propagate_through_opt_expr(o_e.as_ref().map(\|e\| &**e), exit_ln)`
	`1096`	`+ // Ignore succ and subst exit_ln.`
	`1097`	`+ self.propagate_through_opt_expr(o_e.as_ref().map(\|e\| &**e), self.exit_ln)`
`1099`	`1098`	`}`
`1100`	`1099`
`1101`	`1100`	`hir::ExprKind::Break(label, ref opt_expr) => {`