From 5f7ffe0d0b5abe2051e82777495a36dc5d00c548 Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Sun, 29 Jan 2017 22:54:54 +0000
Subject: [PATCH] microinstruction: Implement Inst::AreAllArgsImmediates

---
 src/frontend/ir/microinstruction.cpp | 6 ++++++
 src/frontend/ir/microinstruction.h   | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/src/frontend/ir/microinstruction.cpp b/src/frontend/ir/microinstruction.cpp
index 1356d7ae..a9549d52 100644
--- a/src/frontend/ir/microinstruction.cpp
+++ b/src/frontend/ir/microinstruction.cpp
@@ -4,6 +4,8 @@
  * General Public License version 2 or any later version.
  */
 
+#include <algorithm>
+
 #include "common/assert.h"
 #include "frontend/ir/microinstruction.h"
 
@@ -240,6 +242,10 @@ bool Inst::MayHaveSideEffects() const {
            IsCoprocessorInstruction();
 }
 
+bool Inst::AreAllArgsImmediates() const {
+    return std::all_of(args.begin(), args.begin() + NumArgs(), [](const auto& value){ return value.IsImmediate(); });
+}
+
 void Inst::DecrementRemainingUses() {
     ASSERT_MSG(HasUses(), "Microinstruction doesn't have any remaining uses");
     use_count--;
diff --git a/src/frontend/ir/microinstruction.h b/src/frontend/ir/microinstruction.h
index fb5ab473..c898426b 100644
--- a/src/frontend/ir/microinstruction.h
+++ b/src/frontend/ir/microinstruction.h
@@ -76,6 +76,9 @@ public:
     /// Determines whether or not this instruction may have side-effects.
     bool MayHaveSideEffects() const;
 
+    /// Determines if all arguments of this instruction are immediates.
+    bool AreAllArgsImmediates() const;
+
     size_t UseCount() const { return use_count; }
     bool HasUses() const { return use_count > 0; }
     void DecrementRemainingUses();