From 22804dc6a595abfa5e81ae94be11a40365743834 Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Sun, 29 Jan 2017 22:53:46 +0000
Subject: [PATCH] microinstruction: Arguments of Inst::Use and Inst::UndoUse
 should be const

---
 src/frontend/ir/microinstruction.cpp | 4 ++--
 src/frontend/ir/microinstruction.h   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/frontend/ir/microinstruction.cpp b/src/frontend/ir/microinstruction.cpp
index c0416023..1356d7ae 100644
--- a/src/frontend/ir/microinstruction.cpp
+++ b/src/frontend/ir/microinstruction.cpp
@@ -312,7 +312,7 @@ void Inst::ReplaceUsesWith(Value replacement) {
     args[0] = replacement;
 }
 
-void Inst::Use(Value& value) {
+void Inst::Use(const Value& value) {
     value.GetInst()->use_count++;
 
     switch (op){
@@ -333,7 +333,7 @@ void Inst::Use(Value& value) {
     }
 }
 
-void Inst::UndoUse(Value& value) {
+void Inst::UndoUse(const Value& value) {
     value.GetInst()->use_count--;
 
     switch (op){
diff --git a/src/frontend/ir/microinstruction.h b/src/frontend/ir/microinstruction.h
index 54462671..fb5ab473 100644
--- a/src/frontend/ir/microinstruction.h
+++ b/src/frontend/ir/microinstruction.h
@@ -98,8 +98,8 @@ public:
     void ReplaceUsesWith(Value replacement);
 
 private:
-    void Use(Value& value);
-    void UndoUse(Value& value);
+    void Use(const Value& value);
+    void UndoUse(const Value& value);
 
     Opcode op;
     size_t use_count = 0;