Revert of Remove SIMD.js from V8.

test/cctest/heap/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 50 matching lines @@
   CHECK_EQ(type, map->instance_type());
   CHECK_EQ(instance_size, map->instance_size());
 }
 
 
 TEST(HeapMaps) {
   CcTest::InitializeVM();
   Heap* heap = CcTest::heap();
   CheckMap(heap->meta_map(), MAP_TYPE, Map::kSize);
   CheckMap(heap->heap_number_map(), HEAP_NUMBER_TYPE, HeapNumber::kSize);
+#define SIMD128_TYPE(TYPE, Type, type, lane_count, lane_type) \
+  CheckMap(heap->type##_map(), SIMD128_VALUE_TYPE, Type::kSize);
+  SIMD128_TYPES(SIMD128_TYPE)
+#undef SIMD128_TYPE
   CheckMap(heap->fixed_array_map(), FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   CheckMap(heap->string_map(), STRING_TYPE, kVariableSizeSentinel);
 }
 
 static void VerifyStoredPrototypeMap(Isolate* isolate,
                                      int stored_map_context_index,
                                      int stored_ctor_context_index) {
   Handle<Context> context = isolate->native_context();
 
   Handle<Map> this_map(Map::cast(context->get(stored_map_context_index)));
@@ skipping 232 matching lines @@
   CheckSmi(isolate, 0, "0");
   CheckSmi(isolate, 42, "42");
   CheckSmi(isolate, -42, "-42");
 
   // Check ToString for Numbers
   CheckNumber(isolate, 1.1, "1.1");
 
   CheckFindCodeObject(isolate);
 }
 
+
+template <typename T, typename LANE_TYPE, int LANES>
+static void CheckSimdValue(T* value, LANE_TYPE lane_values[LANES],
+                           LANE_TYPE other_value) {
+  // Check against lane_values, and check that all lanes can be set to
+  // other_value without disturbing the other lanes.
+  for (int i = 0; i < LANES; i++) {
+    CHECK_EQ(lane_values[i], value->get_lane(i));
+  }
+  for (int i = 0; i < LANES; i++) {
+    value->set_lane(i, other_value);  // change the value
+    for (int j = 0; j < LANES; j++) {
+      if (i != j)
+        CHECK_EQ(lane_values[j], value->get_lane(j));
+      else
+        CHECK_EQ(other_value, value->get_lane(j));
+    }
+    value->set_lane(i, lane_values[i]);  // restore the lane
+  }
+  CHECK(value->BooleanValue());  // SIMD values are 'true'.
+}
+
+
+TEST(SimdObjects) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  Factory* factory = isolate->factory();
+
+  HandleScope sc(isolate);
+
+  // Float32x4
+  {
+    float lanes[4] = {1, 2, 3, 4};
+    float quiet_NaN = std::numeric_limits<float>::quiet_NaN();
+    float signaling_NaN = std::numeric_limits<float>::signaling_NaN();
+
+    Handle<Float32x4> value = factory->NewFloat32x4(lanes);
+    CHECK(value->IsFloat32x4());
+    CheckSimdValue<Float32x4, float, 4>(*value, lanes, 3.14f);
+
+    // Check special lane values.
+    value->set_lane(1, -0.0);
+    CHECK_EQ(-0.0f, value->get_lane(1));
+    CHECK(std::signbit(value->get_lane(1)));  // Sign bit should be preserved.
+    value->set_lane(2, quiet_NaN);
+    CHECK(std::isnan(value->get_lane(2)));
+    value->set_lane(3, signaling_NaN);
+    CHECK(std::isnan(value->get_lane(3)));
+
+#ifdef OBJECT_PRINT
+    // Check value printing.
+    {
+      value = factory->NewFloat32x4(lanes);
+      std::ostringstream os;
+      value->Float32x4Print(os);
+      CHECK_EQ("1, 2, 3, 4", os.str());
+    }
+    {
+      float special_lanes[4] = {0, -0.0, quiet_NaN, signaling_NaN};
+      value = factory->NewFloat32x4(special_lanes);
+      std::ostringstream os;
+      value->Float32x4Print(os);
+      // Value printing doesn't preserve signed zeroes.
+      CHECK_EQ("0, 0, NaN, NaN", os.str());
+    }
+#endif  // OBJECT_PRINT
+  }
+  // Int32x4
+  {
+    int32_t lanes[4] = {1, 2, 3, 4};
+
+    Handle<Int32x4> value = factory->NewInt32x4(lanes);
+    CHECK(value->IsInt32x4());
+    CheckSimdValue<Int32x4, int32_t, 4>(*value, lanes, 3);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Int32x4Print(os);
+    CHECK_EQ("1, 2, 3, 4", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Uint32x4
+  {
+    uint32_t lanes[4] = {1, 2, 3, 4};
+
+    Handle<Uint32x4> value = factory->NewUint32x4(lanes);
+    CHECK(value->IsUint32x4());
+    CheckSimdValue<Uint32x4, uint32_t, 4>(*value, lanes, 3);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Uint32x4Print(os);
+    CHECK_EQ("1, 2, 3, 4", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Bool32x4
+  {
+    bool lanes[4] = {true, false, true, false};
+
+    Handle<Bool32x4> value = factory->NewBool32x4(lanes);
+    CHECK(value->IsBool32x4());
+    CheckSimdValue<Bool32x4, bool, 4>(*value, lanes, false);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Bool32x4Print(os);
+    CHECK_EQ("true, false, true, false", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Int16x8
+  {
+    int16_t lanes[8] = {1, 2, 3, 4, 5, 6, 7, 8};
+
+    Handle<Int16x8> value = factory->NewInt16x8(lanes);
+    CHECK(value->IsInt16x8());
+    CheckSimdValue<Int16x8, int16_t, 8>(*value, lanes, 32767);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Int16x8Print(os);
+    CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Uint16x8
+  {
+    uint16_t lanes[8] = {1, 2, 3, 4, 5, 6, 7, 8};
+
+    Handle<Uint16x8> value = factory->NewUint16x8(lanes);
+    CHECK(value->IsUint16x8());
+    CheckSimdValue<Uint16x8, uint16_t, 8>(*value, lanes, 32767);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Uint16x8Print(os);
+    CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Bool16x8
+  {
+    bool lanes[8] = {true, false, true, false, true, false, true, false};
+
+    Handle<Bool16x8> value = factory->NewBool16x8(lanes);
+    CHECK(value->IsBool16x8());
+    CheckSimdValue<Bool16x8, bool, 8>(*value, lanes, false);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Bool16x8Print(os);
+    CHECK_EQ("true, false, true, false, true, false, true, false", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Int8x16
+  {
+    int8_t lanes[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+
+    Handle<Int8x16> value = factory->NewInt8x16(lanes);
+    CHECK(value->IsInt8x16());
+    CheckSimdValue<Int8x16, int8_t, 16>(*value, lanes, 127);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Int8x16Print(os);
+    CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Uint8x16
+  {
+    uint8_t lanes[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+
+    Handle<Uint8x16> value = factory->NewUint8x16(lanes);
+    CHECK(value->IsUint8x16());
+    CheckSimdValue<Uint8x16, uint8_t, 16>(*value, lanes, 127);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Uint8x16Print(os);
+    CHECK_EQ("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16", os.str());
+#endif  // OBJECT_PRINT
+  }
+  // Bool8x16
+  {
+    bool lanes[16] = {true, false, true, false, true, false, true, false,
+                      true, false, true, false, true, false, true, false};
+
+    Handle<Bool8x16> value = factory->NewBool8x16(lanes);
+    CHECK(value->IsBool8x16());
+    CheckSimdValue<Bool8x16, bool, 16>(*value, lanes, false);
+
+#ifdef OBJECT_PRINT
+    std::ostringstream os;
+    value->Bool8x16Print(os);
+    CHECK_EQ(
+        "true, false, true, false, true, false, true, false, true, false, "
+        "true, false, true, false, true, false",
+        os.str());
+#endif  // OBJECT_PRINT
+  }
+}
+
+
 TEST(Tagging) {
   CcTest::InitializeVM();
   int request = 24;
   CHECK_EQ(request, static_cast<int>(OBJECT_POINTER_ALIGN(request)));
   CHECK(Smi::FromInt(42)->IsSmi());
   CHECK(Smi::FromInt(Smi::kMinValue)->IsSmi());
   CHECK(Smi::FromInt(Smi::kMaxValue)->IsSmi());
 }
 
 
@@ skipping 6406 matching lines @@
   CHECK(!heap->code_space()->FirstPage()->Contains(code->address()));
 
   // Ensure it's not in large object space.
   MemoryChunk* chunk = MemoryChunk::FromAddress(code->address());
   CHECK(chunk->owner()->identity() != LO_SPACE);
   CHECK(chunk->NeverEvacuate());
 }
 
 }  // namespace internal
 }  // namespace v8