From 99b361567abe9c49f9bb3260f5252229d0ca0832 Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Thu, 31 Aug 2017 12:09:42 -0700
Subject: [PATCH] Remove unneeded `mut` keywords.

---
 lib/cretonne/src/entity/list.rs       | 2 +-
 lib/cretonne/src/regalloc/liveness.rs | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/cretonne/src/entity/list.rs b/lib/cretonne/src/entity/list.rs
index 3f5eace692..03c66a8ec0 100644
--- a/lib/cretonne/src/entity/list.rs
+++ b/lib/cretonne/src/entity/list.rs
@@ -467,7 +467,7 @@ impl<T: EntityRef> EntityList<T> {
     /// Since the memory comes from the pool, this will be either zero entity references or
     /// whatever where in a previously deallocated list.
     pub fn grow_at(&mut self, index: usize, count: usize, pool: &mut ListPool<T>) {
-        let mut data = self.grow(count, pool);
+        let data = self.grow(count, pool);
 
         // Copy elements after `index` up.
         for i in (index + count..data.len()).rev() {
diff --git a/lib/cretonne/src/regalloc/liveness.rs b/lib/cretonne/src/regalloc/liveness.rs
index c47a703f3c..72b3814770 100644
--- a/lib/cretonne/src/regalloc/liveness.rs
+++ b/lib/cretonne/src/regalloc/liveness.rs
@@ -328,7 +328,7 @@ impl Liveness {
     where
         PP: Into<ProgramPoint>,
     {
-        let mut lr = self.ranges.get_mut(value).expect("Value has no live range");
+        let lr = self.ranges.get_mut(value).expect("Value has no live range");
         lr.move_def_locally(def.into());
     }
 
@@ -345,7 +345,7 @@ impl Liveness {
         layout: &Layout,
     ) -> &mut Affinity {
         debug_assert_eq!(Some(ebb), layout.inst_ebb(user));
-        let mut lr = self.ranges.get_mut(value).expect("Value has no live range");
+        let lr = self.ranges.get_mut(value).expect("Value has no live range");
         let livein = lr.extend_in_ebb(ebb, user, layout);
         assert!(!livein, "{} should already be live in {}", value, ebb);
         &mut lr.affinity
@@ -353,7 +353,7 @@ impl Liveness {
 
     /// Change the affinity of `value` to `Stack` and return the previous affinity.
     pub fn spill(&mut self, value: Value) -> Affinity {
-        let mut lr = self.ranges.get_mut(value).expect("Value has no live range");
+        let lr = self.ranges.get_mut(value).expect("Value has no live range");
         mem::replace(&mut lr.affinity, Affinity::Stack)
     }