[wasm] Fixed float-to-int conversion tests.

src/compiler/x64/instruction-selector-x64.cc

 // Copyright 2014 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 <algorithm>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
@@ skipping 877 matching lines @@
 
 
 void InstructionSelector::VisitChangeFloat64ToInt32(Node* node) {
   X64OperandGenerator g(this);
   Emit(kSSEFloat64ToInt32, g.DefineAsRegister(node), g.Use(node->InputAt(0)));
 }
 
 
 void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
   X64OperandGenerator g(this);
-  Emit(kSSEFloat64ToUint32, g.DefineAsRegister(node), g.Use(node->InputAt(0)));
+  Emit(kSSEFloat64ToUint32 | MiscField::encode(1), g.DefineAsRegister(node),
+       g.Use(node->InputAt(0)));
 }
 
+void InstructionSelector::VisitTruncateFloat64ToUint32(Node* node) {
+  X64OperandGenerator g(this);
+  Emit(kSSEFloat64ToUint32 | MiscField::encode(0), g.DefineAsRegister(node),
+       g.Use(node->InputAt(0)));
+}
 
 void InstructionSelector::VisitTruncateFloat32ToInt32(Node* node) {
   X64OperandGenerator g(this);
   Emit(kSSEFloat32ToInt32, g.DefineAsRegister(node), g.Use(node->InputAt(0)));
 }
 
 
 void InstructionSelector::VisitTruncateFloat32ToUint32(Node* node) {
   X64OperandGenerator g(this);
   Emit(kSSEFloat32ToUint32, g.DefineAsRegister(node), g.Use(node->InputAt(0)));
@@ skipping 1061 matching lines @@
              MachineOperatorBuilder::kFloat64RoundTruncate |
              MachineOperatorBuilder::kFloat32RoundTiesEven |
              MachineOperatorBuilder::kFloat64RoundTiesEven;
   }
   return flags;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8