MIPS: Enable Math rounding operations call reduction optimization in TF.

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"
 
 namespace v8 {
 namespace internal {
@@ skipping 591 matching lines @@
 }
 
 
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   Mips64OperandGenerator g(this);
   Emit(kMips64SqrtD, g.DefineAsRegister(node), g.UseRegister(node->InputAt(0)));
 }
 
 
 void InstructionSelector::VisitFloat64Floor(Node* node) {
-  VisitRR(this, kMips64FloorD, node);
+  VisitRR(this, kMips64Float64Floor, node);
 }
 
 
 void InstructionSelector::VisitFloat64Ceil(Node* node) {
-  VisitRR(this, kMips64CeilD, node);
+  VisitRR(this, kMips64Float64Ceil, node);
 }
 
 
 void InstructionSelector::VisitFloat64RoundTruncate(Node* node) {
-  VisitRR(this, kMips64RoundTruncateD, node);
+  VisitRR(this, kMips64Float64RoundTruncate, node);
 }
 
 
 void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) {
   UNREACHABLE();
 }
 
 
 void InstructionSelector::VisitCall(Node* node) {
   Mips64OperandGenerator g(this);
@@ skipping 429 matching lines @@
 
 void InstructionSelector::VisitFloat64LessThanOrEqual(Node* node) {
   FlagsContinuation cont(kUnorderedLessThanOrEqual, node);
   VisitFloat64Compare(this, node, &cont);
 }
 
 
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
-  return MachineOperatorBuilder::kNoFlags;
+  return MachineOperatorBuilder::kFloat64Floor |
+         MachineOperatorBuilder::kFloat64Ceil |
+         MachineOperatorBuilder::kFloat64RoundTruncate;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8