1 files changed, 54 insertions, 0 deletions
diff --git a/runtime/primitive.h b/runtime/primitive.h
index 2454a2117b..18f45ffe9d 100644
--- a/runtime/primitive.h
+++ b/runtime/primitive.h
@@ -166,6 +166,60 @@ class Primitive {
     return type == kPrimLong || type == kPrimDouble;
   }
 
+  // Return the general kind of `type`, fusing integer-like types as kPrimInt.
+  static Type PrimitiveKind(Type type) {
+    switch (type) {
+      case kPrimBoolean:
+      case kPrimByte:
+      case kPrimShort:
+      case kPrimChar:
+      case kPrimInt:
+        return kPrimInt;
+      default:
+        return type;
+    }
+  }
+
+  static int64_t MinValueOfIntegralType(Type type) {
+    switch (type) {
+      case kPrimBoolean:
+        return std::numeric_limits<bool>::min();
+      case kPrimByte:
+        return std::numeric_limits<int8_t>::min();
+      case kPrimChar:
+        return std::numeric_limits<uint16_t>::min();
+      case kPrimShort:
+        return std::numeric_limits<int16_t>::min();
+      case kPrimInt:
+        return std::numeric_limits<int32_t>::min();
+      case kPrimLong:
+        return std::numeric_limits<int64_t>::min();
+      default:
+        LOG(FATAL) << "non integral type";
+    }
+    return 0;
+  }
+
+  static int64_t MaxValueOfIntegralType(Type type) {
+    switch (type) {
+      case kPrimBoolean:
+        return std::numeric_limits<bool>::max();
+      case kPrimByte:
+        return std::numeric_limits<int8_t>::max();
+      case kPrimChar:
+        return std::numeric_limits<uint16_t>::max();
+      case kPrimShort:
+        return std::numeric_limits<int16_t>::max();
+      case kPrimInt:
+        return std::numeric_limits<int32_t>::max();
+      case kPrimLong:
+        return std::numeric_limits<int64_t>::max();
+      default:
+        LOG(FATAL) << "non integral type";
+    }
+    return 0;
+  }
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(Primitive);
 };