From 29db33e7f8cdb0ed1c63400911fef187408a2992 Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Fri, 17 Nov 2017 11:14:02 -0800
Subject: [PATCH] Replace reserve with reserve_exact when applicable.

---
 lib/runtime/src/instance.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/runtime/src/instance.rs b/lib/runtime/src/instance.rs
index ad0345c2c7..7b07ad0bd7 100644
--- a/lib/runtime/src/instance.rs
+++ b/lib/runtime/src/instance.rs
@@ -38,7 +38,7 @@ impl Instance {
     /// without any initializers applied yet.
     fn instantiate_tables(&mut self, module: &Module) {
         debug_assert!(self.tables.is_empty());
-        self.tables.reserve(module.tables.len());
+        self.tables.reserve_exact(module.tables.len());
         for table in &module.tables {
             let len = table.size;
             let mut v = Vec::with_capacity(len);
@@ -52,7 +52,7 @@ impl Instance {
     fn instantiate_memories(&mut self, module: &Module) {
         debug_assert!(self.memories.is_empty());
         // Allocate the underlying memory and initialize it to all zeros.
-        self.memories.reserve(module.memories.len());
+        self.memories.reserve_exact(module.memories.len());
         for memory in &module.memories {
             let len = memory.pages_count * PAGE_SIZE;
             let mut v = Vec::with_capacity(len);