Use new.target in favor of %_IsConstructCall intrinsic (1).

src/js/harmony-simd.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function(global, utils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 415 matching lines @@
   return %NAMEShuffle(a, b, c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10,
                             c11, c12, c13, c14, c15);
 }
 endmacro
 
 SIMD_X16_TYPES(DECLARE_X16_FUNCTIONS)
 
 //-------------------------------------------------------------------
 
 function Float32x4Constructor(c0, c1, c2, c3) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Float32x4");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Float32x4");
+  }
   return %CreateFloat32x4(TO_NUMBER(c0), TO_NUMBER(c1),
                           TO_NUMBER(c2), TO_NUMBER(c3));
 }
 
 
 function Int32x4Constructor(c0, c1, c2, c3) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Int32x4");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Int32x4");
+  }
   return %CreateInt32x4(TO_NUMBER(c0), TO_NUMBER(c1),
                         TO_NUMBER(c2), TO_NUMBER(c3));
 }
 
 
 function Uint32x4Constructor(c0, c1, c2, c3) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Uint32x4");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Uint32x4");
+  }
   return %CreateUint32x4(TO_NUMBER(c0), TO_NUMBER(c1),
                          TO_NUMBER(c2), TO_NUMBER(c3));
 }
 
 
 function Bool32x4Constructor(c0, c1, c2, c3) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Bool32x4");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Bool32x4");
+  }
   return %CreateBool32x4(c0, c1, c2, c3);
 }
 
 
 function Int16x8Constructor(c0, c1, c2, c3, c4, c5, c6, c7) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Int16x8");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Int16x8");
+  }
   return %CreateInt16x8(TO_NUMBER(c0), TO_NUMBER(c1),
                         TO_NUMBER(c2), TO_NUMBER(c3),
                         TO_NUMBER(c4), TO_NUMBER(c5),
                         TO_NUMBER(c6), TO_NUMBER(c7));
 }
 
 
 function Uint16x8Constructor(c0, c1, c2, c3, c4, c5, c6, c7) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Uint16x8");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Uint16x8");
+  }
   return %CreateUint16x8(TO_NUMBER(c0), TO_NUMBER(c1),
                          TO_NUMBER(c2), TO_NUMBER(c3),
                          TO_NUMBER(c4), TO_NUMBER(c5),
                          TO_NUMBER(c6), TO_NUMBER(c7));
 }
 
 
 function Bool16x8Constructor(c0, c1, c2, c3, c4, c5, c6, c7) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Bool16x8");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Bool16x8");
+  }
   return %CreateBool16x8(c0, c1, c2, c3, c4, c5, c6, c7);
 }
 
 
 function Int8x16Constructor(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11,
                             c12, c13, c14, c15) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Int8x16");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Int8x16");
+  }
   return %CreateInt8x16(TO_NUMBER(c0), TO_NUMBER(c1),
                         TO_NUMBER(c2), TO_NUMBER(c3),
                         TO_NUMBER(c4), TO_NUMBER(c5),
                         TO_NUMBER(c6), TO_NUMBER(c7),
                         TO_NUMBER(c8), TO_NUMBER(c9),
                         TO_NUMBER(c10), TO_NUMBER(c11),
                         TO_NUMBER(c12), TO_NUMBER(c13),
                         TO_NUMBER(c14), TO_NUMBER(c15));
 }
 
 
 function Uint8x16Constructor(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11,
                              c12, c13, c14, c15) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Uint8x16");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Uint8x16");
+  }
   return %CreateUint8x16(TO_NUMBER(c0), TO_NUMBER(c1),
                          TO_NUMBER(c2), TO_NUMBER(c3),
                          TO_NUMBER(c4), TO_NUMBER(c5),
                          TO_NUMBER(c6), TO_NUMBER(c7),
                          TO_NUMBER(c8), TO_NUMBER(c9),
                          TO_NUMBER(c10), TO_NUMBER(c11),
                          TO_NUMBER(c12), TO_NUMBER(c13),
                          TO_NUMBER(c14), TO_NUMBER(c15));
 }
 
 
 function Bool8x16Constructor(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11,
                              c12, c13, c14, c15) {
-  if (%_IsConstructCall()) throw MakeTypeError(kNotConstructor, "Bool8x16");
+  if (!IS_UNDEFINED(new.target)) {
+    throw MakeTypeError(kNotConstructor, "Bool8x16");
+  }
   return %CreateBool8x16(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12,
                          c13, c14, c15);
 }
 
 
 function Float32x4AbsJS(a) {
   return %Float32x4Abs(a);
 }
 
 
@@ skipping 385 matching lines @@
   to.Bool32x4ToString = Bool32x4ToString;
   to.Int16x8ToString = Int16x8ToString;
   to.Uint16x8ToString = Uint16x8ToString;
   to.Bool16x8ToString = Bool16x8ToString;
   to.Int8x16ToString = Int8x16ToString;
   to.Uint8x16ToString = Uint8x16ToString;
   to.Bool8x16ToString = Bool8x16ToString;
 });
 
 })