PPC/s390: [builtins] Port TypedArrayConstructByArrayBuffer to CodeStubAssembler.

src/compiler/s390/instruction-selector-s390.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/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/s390/frames-s390.h"
 
@@ skipping 1615 matching lines @@
 void InstructionSelector::VisitChangeUint32ToUint64(Node* node) {
   S390OperandGenerator g(this);
   Node* value = node->InputAt(0);
   if (ZeroExtendsWord32ToWord64(value)) {
     // These 32-bit operations implicitly zero-extend to 64-bit on x64, so the
     // zero-extension is a no-op.
     return EmitIdentity(node);
   }
   VisitRR(this, kS390_Uint32ToUint64, node);
 }
+
+void InstructionSelector::VisitChangeFloat64ToUint64(Node* node) {
+  VisitRR(this, kS390_DoubleToUint64, node);
+}
 #endif
 
 void InstructionSelector::VisitBitcastInt32ToFloat32(Node* node) {
   VisitRR(this, kS390_BitcastInt32ToFloat32, node);
 }
 
 void InstructionSelector::VisitFloat32Add(Node* node) {
   return VisitFloat32BinOp(this, node, kS390_AddFloat, OperandMode::kAllowRM);
 }
 
@@ skipping 924 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8