misc minor cleanups in the codebase (#1531)

2 files changed, 3 insertions, 1 deletions

diff --git a/src/passes/ReorderLocals.cpp b/src/passes/ReorderLocals.cpp
index c880714e6..fe4f775e9 100644
--- a/src/passes/ReorderLocals.cpp
+++ b/src/passes/ReorderLocals.cpp
@@ -19,6 +19,8 @@
 //
 // Secondarily, sort by first appearance. This canonicalizes the order.
 //
+// While sorting, we remove locals that have no uses at all.
+//
 
 #include <memory>
 
diff --git a/src/passes/SSAify.cpp b/src/passes/SSAify.cpp
index a6127e4d6..35432d9eb 100644
--- a/src/passes/SSAify.cpp
+++ b/src/passes/SSAify.cpp
@@ -40,7 +40,7 @@
 namespace wasm {
 
 // A set we know is impossible / not in the ast
-SetLocal IMPOSSIBLE_SET;
+static SetLocal IMPOSSIBLE_SET;
 
 // Tracks assignments to locals, assuming single-assignment form, i.e.,
 // each assignment creates a new variable.