Implement exponentiation operation. (#3692)

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

jerry-core/vm/opcodes-ecma-arithmetics.c

@@ -74,6 +74,13 @@ do_number_arithmetic (number_arithmetic_op op, /**< number arithmetic operation
       result = ecma_op_number_remainder (num_left, num_right);
       break;
     }
+#if ENABLED (JERRY_ES2015)
+    case NUMBER_ARITHMETIC_EXPONENTIATION:
+    {
+      result = ecma_number_pow (num_left, num_right);
+      break;
+    }
+#endif /* ENABLED (JERRY_ES2015) */
   }
 
   ret_value = ecma_make_number_value (result);

jerry-core/vm/opcodes.h

@@ -35,6 +35,9 @@ typedef enum
   NUMBER_ARITHMETIC_MULTIPLICATION, /**< multiplication */
   NUMBER_ARITHMETIC_DIVISION, /**< division */
   NUMBER_ARITHMETIC_REMAINDER, /**< remainder calculation */
+#if ENABLED (JERRY_ES2015)
+  NUMBER_ARITHMETIC_EXPONENTIATION, /**< exponentiation */
+#endif /* ENABLED (JERRY_ES2015) */
 } number_arithmetic_op;
 
 /**

jerry-core/vm/vm.c

@@ -2815,6 +2815,22 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
           *stack_top_p++ = result;
           goto free_both_values;
         }
+#if ENABLED (JERRY_ES2015)
+        case VM_OC_EXP:
+        {
+          result = do_number_arithmetic (NUMBER_ARITHMETIC_EXPONENTIATION,
+                                         left_value,
+                                         right_value);
+
+          if (ECMA_IS_VALUE_ERROR (result))
+          {
+            goto error;
+          }
+
+          *stack_top_p++ = result;
+          goto free_both_values;
+        }
+#endif /* ENABLED (JERRY_ES2015) */
         case VM_OC_EQUAL:
         {
           result = opfunc_equality (left_value, right_value);

jerry-core/vm/vm.h

@@ -182,6 +182,9 @@ typedef enum
   VM_OC_MUL,                     /**< mul */
   VM_OC_DIV,                     /**< div */
   VM_OC_MOD,                     /**< mod */
+#if ENABLED (JERRY_ES2015)
+  VM_OC_EXP,                     /**< exponentiation */
+#endif /* ENABLED (JERRY_ES2015) */
 
   VM_OC_EQUAL,                   /**< equal */
   VM_OC_NOT_EQUAL,               /**< not equal */
@@ -276,6 +279,9 @@ typedef enum
  */
 typedef enum
 {
+#if !ENABLED (JERRY_ES2015)
+  VM_OC_EXP = VM_OC_NONE,                     /**< exponentiation */
+#endif /* !ENABLED (JERRY_ES2015) */
 #if !ENABLED (JERRY_DEBUGGER)
   VM_OC_BREAKPOINT_ENABLED = VM_OC_NONE,      /**< enabled breakpoint for debugger is unused */
   VM_OC_BREAKPOINT_DISABLED = VM_OC_NONE,     /**< disabled breakpoint for debugger is unused */