Use reserve_exact instead of reserve when the max size is known.

2017-11-16 15:16:23 -08:00
parent 4d9aedbaca
commit bfa5a72b77
1 changed files with 1 additions and 1 deletions
--- a/lib/cretonne/src/regalloc/coalescing.rs
+++ b/lib/cretonne/src/regalloc/coalescing.rs
@@ -148,7 +148,7 @@ impl DomForest {
        liveness: &Liveness,
    ) -> Result<(), (Value, Value)> {
        self.clear();
-        self.values.reserve(va.len() + vb.len());
+        self.values.reserve_exact(va.len() + vb.len());

        // Convert the two value lists into a merged sequence of nodes.
        let merged = MergedNodes {