MIPS: [turbofan] Add new Float32Abs and Float64Abs operators.

src/compiler/mips64/instruction-selector-mips64.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 "src/base/bits.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
 namespace v8 {
@@ skipping 594 matching lines @@
 
 void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
 
 
 void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); }
 
 
 void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
 
 
-void InstructionSelector::VisitFloat32Abs(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32Abs(Node* node) {
+  VisitRR(this, kMips64AbsS, node);
+}
 
 
-void InstructionSelector::VisitFloat64Abs(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Abs(Node* node) {
+  VisitRR(this, kMips64AbsD, node);
+}
 
 
 void InstructionSelector::VisitFloat32Sqrt(Node* node) {
   VisitRR(this, kMips64SqrtS, node);
 }
 
 
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   VisitRR(this, kMips64SqrtD, node);
 }
@@ skipping 546 matching lines @@
   Node* left = node->InputAt(0);
   Node* right = node->InputAt(1);
   Emit(kMips64Float64InsertHighWord32, g.DefineSameAsFirst(node),
        g.UseRegister(left), g.UseRegister(right));
 }
 
 
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
-  return MachineOperatorBuilder::kFloat64RoundDown |
+  return MachineOperatorBuilder::kFloat32Abs |
+         MachineOperatorBuilder::kFloat64Abs |
+         MachineOperatorBuilder::kFloat64RoundDown |
          MachineOperatorBuilder::kFloat64RoundTruncate;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8