New upstream version 1.43.0+dfsg1

[rustc.git] / src / librustc_mir / transform / simplify.rs

diff --git a/src/librustc_mir/transform/simplify.rs b/src/librustc_mir/transform/simplify.rs
index ddf8d73e5481f82d1ecbccc8f8cb8defc2d2adf1..597d3f0237a71dc20a2acd61eed75a40e167cf41 100644 (file)
--- a/src/librustc_mir/transform/simplify.rs
+++ b/src/librustc_mir/transform/simplify.rs
@@ -230,7 +230,7 @@ impl<'a, 'tcx> CfgSimplifier<'a, 'tcx> {
         };
 
         let first_succ = {
-            if let Some(&first_succ) = terminator.successors().nth(0) {
+            if let Some(&first_succ) = terminator.successors().next() {
                 if terminator.successors().all(|s| *s == first_succ) {
                     let count = terminator.successors().count();
                     self.pred_count[first_succ] -= (count - 1) as u32;