[wasm] Simd128 types should not be available in asmjs modules.

src/compiler/wasm-compiler.cc

 // 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.
 
 #include "src/compiler/wasm-compiler.h"
 
 #include <memory>
 
 #include "src/isolate-inl.h"
 
@@ skipping 188 matching lines @@
     switch (type) {
       case wasm::kAstI32:
         return jsgraph()->Int32Constant(0xdeadbeef);
       case wasm::kAstI64:
         return jsgraph()->Int64Constant(0xdeadbeefdeadbeef);
       case wasm::kAstF32:
         return jsgraph()->Float32Constant(bit_cast<float>(0xdeadbeef));
       case wasm::kAstF64:
         return jsgraph()->Float64Constant(bit_cast<double>(0xdeadbeefdeadbeef));
         break;
+      case wasm::kAstS128:
+        return builder_->CreateS128Value(0xdeadbeef);
+        break;
       default:
         UNREACHABLE();
         return nullptr;
     }
   }
 
  private:
   WasmGraphBuilder* builder_;
   JSGraph* jsgraph_;
   Graph* graph_;
@@ skipping 2069 matching lines @@
   Node* control = graph()->NewNode(common->Merge(2), if_smi, if_box);
   value = graph()->NewNode(common->Phi(MachineRepresentation::kTagged, 2), vsmi,
                            vbox, control);
   return value;
 }
 
 Node* WasmGraphBuilder::ToJS(Node* node, wasm::LocalType type) {
   switch (type) {
     case wasm::kAstI32:
       return BuildChangeInt32ToTagged(node);
+    case wasm::kAstS128:
     case wasm::kAstI64:
       // Throw a TypeError. The native context is good enough here because we
       // only throw a TypeError.
       return BuildCallToRuntime(Runtime::kWasmThrowTypeError, jsgraph(),
                                 jsgraph()->isolate()->native_context(), nullptr,
                                 0, effect_, *control_);
     case wasm::kAstF32:
       node = graph()->NewNode(jsgraph()->machine()->ChangeFloat32ToFloat64(),
                               node);
       return BuildChangeFloat64ToTagged(node);
@@ skipping 142 matching lines @@
   // Change representation.
   SimplifiedOperatorBuilder simplified(jsgraph()->zone());
   num = BuildChangeTaggedToFloat64(num);
 
   switch (type) {
     case wasm::kAstI32: {
       num = graph()->NewNode(jsgraph()->machine()->TruncateFloat64ToWord32(),
                              num);
       break;
     }
+    case wasm::kAstS128:
     case wasm::kAstI64:
       // Throw a TypeError. The native context is good enough here because we
       // only throw a TypeError.
       return BuildCallToRuntime(Runtime::kWasmThrowTypeError, jsgraph(),
                                 jsgraph()->isolate()->native_context(), nullptr,
                                 0, effect_, *control_);
     case wasm::kAstF32:
       num = graph()->NewNode(jsgraph()->machine()->TruncateFloat64ToFloat32(),
                              num);
       break;
@@ skipping 547 matching lines @@
 }
 
 void WasmGraphBuilder::SetSourcePosition(Node* node,
                                          wasm::WasmCodePosition position) {
   DCHECK_NE(position, wasm::kNoCodePosition);
   compiler::SourcePosition pos(position);
   if (source_position_table_)
     source_position_table_->SetSourcePosition(node, pos);
 }
 
-Node* WasmGraphBuilder::DefaultS128Value() {
+Node* WasmGraphBuilder::CreateS128Value(int32_t value) {
   // TODO(gdeepti): Introduce Simd128Constant to common-operator.h and use
   // instead of creating a SIMD Value.
   return graph()->NewNode(jsgraph()->machine()->CreateInt32x4(),
-                          Int32Constant(0), Int32Constant(0), Int32Constant(0),
-                          Int32Constant(0));
+                          Int32Constant(value), Int32Constant(value),
+                          Int32Constant(value), Int32Constant(value));
 }
 
 Node* WasmGraphBuilder::SimdOp(wasm::WasmOpcode opcode,
                                const NodeVector& inputs) {
   switch (opcode) {
     case wasm::kExprI32x4Splat:
       return graph()->NewNode(jsgraph()->machine()->CreateInt32x4(), inputs[0],
                               inputs[0], inputs[0], inputs[0]);
     default:
       return graph()->NewNode(UnsupportedOpcode(opcode), nullptr);
@@ skipping 359 matching lines @@
                             function_->code_start_offset),
            compile_ms);
   }
 
   return code;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8