Add Simd128Value code stubs.

src/code-stubs-hydrogen.cc

 // Copyright 2012 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.
 
 #include "src/code-stubs.h"
 
 #include "src/bailout-reason.h"
 #include "src/crankshaft/hydrogen.h"
 #include "src/crankshaft/lithium.h"
 #include "src/field-index.h"
@@ skipping 1195 matching lines @@
                      NOT_TENURED, MUTABLE_HEAP_NUMBER_TYPE);
   AddStoreMapConstant(result, isolate()->factory()->mutable_heap_number_map());
   return result;
 }
 
 
 Handle<Code> AllocateMutableHeapNumberStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
+#define SIMD128_VALUE_STUB(TYPE, Type, type, lane_count, lane_type)           \
+  template <>                                                                 \
+  HValue* CodeStubGraphBuilder<Allocate##Type##Stub>::BuildCodeStub() {       \
+    HValue* result =                                                          \
+        Add<HAllocate>(Add<HConstant>(Simd128Value::kSize),                   \

[Benedikt Meurer, 2016/02/18 05:12:26]

Not sure that HAllocate get's the alignment correct for Simd128Values, you might
want to check that first.

+                       HType::HeapObject(), NOT_TENURED, SIMD128_VALUE_TYPE); \
+    AddStoreMapConstant(result, isolate()->factory()->type##_map());          \
+    return result;                                                            \
+  }                                                                           \
+                                                                              \
+  Handle<Code> Allocate##Type##Stub::GenerateCode() {                         \
+    return DoGenerateCode(this);                                              \
+  }
+SIMD128_TYPES(SIMD128_VALUE_STUB)
+#undef SIMD128_VALUE_STUB
 
 template <>
 HValue* CodeStubGraphBuilder<AllocateInNewSpaceStub>::BuildCodeStub() {
   HValue* result = Add<HAllocate>(GetParameter(0), HType::Tagged(), NOT_TENURED,
                                   JS_OBJECT_TYPE);
   return result;
 }
 
 
 Handle<Code> AllocateInNewSpaceStub::GenerateCode() {
@@ skipping 1198 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 }  // namespace internal
 }  // namespace v8