PPC/s390: Implement VisitFloat32Neg/VisitFloat64Neg and instr lcebr for s390

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 1259 matching lines @@
 }
 
 void InstructionSelector::VisitFloat32RoundTiesEven(Node* node) {
   UNREACHABLE();
 }
 
 void InstructionSelector::VisitFloat64RoundTiesEven(Node* node) {
   UNREACHABLE();
 }
 
-void InstructionSelector::VisitFloat32Neg(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32Neg(Node* node) {
+  VisitRR(this, kS390_NegFloat, node);
+}
 
-void InstructionSelector::VisitFloat64Neg(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Neg(Node* node) {
+  VisitRR(this, kS390_NegDouble, node);
+}
 
 void InstructionSelector::VisitInt32AddWithOverflow(Node* node) {
   if (Node* ovf = NodeProperties::FindProjection(node, 1)) {
     FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf);
     return VisitBinop<Int32BinopMatcher>(this, node, kS390_AddWithOverflow32,
                                          kInt16Imm, &cont);
   }
   FlagsContinuation cont;
   VisitBinop<Int32BinopMatcher>(this, node, kS390_AddWithOverflow32, kInt16Imm,
                                 &cont);
@@ skipping 592 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8