5 files changed, 6 insertions, 6 deletions
diff --git a/compiler/dex/arena_allocator.h b/compiler/dex/arena_allocator.h
index cc81e50..0ad859e 100644
--- a/compiler/dex/arena_allocator.h
+++ b/compiler/dex/arena_allocator.h
@@ -47,7 +47,7 @@ class ArenaAllocator {
       kNumAllocKinds
     };
 
-  ArenaAllocator(size_t default_size = ARENA_DEFAULT_BLOCK_SIZE);
+  explicit ArenaAllocator(size_t default_size = ARENA_DEFAULT_BLOCK_SIZE);
   ~ArenaAllocator();
   void* NewMem(size_t size, bool zero, ArenaAllocKind kind);
   size_t BytesAllocated() {
@@ -86,7 +86,7 @@ struct MemStats {
      void Dump(std::ostream& os) const {
        arena_.DumpMemStats(os);
      }
-     MemStats(const ArenaAllocator &arena) : arena_(arena) {};
+     explicit MemStats(const ArenaAllocator &arena) : arena_(arena) {};
   private:
     const ArenaAllocator &arena_;
 }; // MemStats
diff --git a/compiler/dex/arena_bit_vector.h b/compiler/dex/arena_bit_vector.h
index 0b7bbc5..7e5c436 100644
--- a/compiler/dex/arena_bit_vector.h
+++ b/compiler/dex/arena_bit_vector.h
@@ -33,7 +33,7 @@ class ArenaBitVector {
 
     class Iterator {
       public:
-        Iterator(ArenaBitVector* bit_vector)
+        explicit Iterator(ArenaBitVector* bit_vector)
           : p_bits_(bit_vector),
             bit_storage_(bit_vector->GetRawStorage()),
             bit_index_(0),
diff --git a/compiler/dex/backend.h b/compiler/dex/backend.h
index 6f5ba38..7fa8e99 100644
--- a/compiler/dex/backend.h
+++ b/compiler/dex/backend.h
@@ -30,7 +30,7 @@ class Backend {
     virtual CompiledMethod* GetCompiledMethod() = 0;
 
   protected:
-    Backend(ArenaAllocator* arena) : arena_(arena) {};
+    explicit Backend(ArenaAllocator* arena) : arena_(arena) {};
     ArenaAllocator* const arena_;
 
 };  // Class Backend
diff --git a/compiler/dex/growable_array.h b/compiler/dex/growable_array.h
index 6ab0f16..6d26bc2 100644
--- a/compiler/dex/growable_array.h
+++ b/compiler/dex/growable_array.h
@@ -49,7 +49,7 @@ class GrowableArray {
 
     class Iterator {
       public:
-        Iterator(GrowableArray* g_list)
+        explicit Iterator(GrowableArray* g_list)
           : idx_(0),
             g_list_(g_list) {};
 
diff --git a/compiler/dex/local_value_numbering.h b/compiler/dex/local_value_numbering.h
index f2b2291..09ed7ae 100644
--- a/compiler/dex/local_value_numbering.h
+++ b/compiler/dex/local_value_numbering.h
@@ -33,7 +33,7 @@ typedef SafeMap<uint32_t, uint16_t> MemoryVersionMap;
 
 class LocalValueNumbering {
  public:
-  LocalValueNumbering(CompilationUnit* cu) : cu_(cu) {};
+  explicit LocalValueNumbering(CompilationUnit* cu) : cu_(cu) {};
 
   static uint64_t BuildKey(uint16_t op, uint16_t operand1, uint16_t operand2, uint16_t modifier) {
     return (static_cast<uint64_t>(op) << 48 | static_cast<uint64_t>(operand1) << 32 |