[turbofan] Unify Math.floor / Math.ceil optimization.

src/compiler/instruction-selector.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/compiler/instruction-selector.h"
 
 #include <limits>
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 672 matching lines @@
       return kMachFloat32;
     case IrOpcode::kTruncateFloat64ToInt32:
     case IrOpcode::kTruncateInt64ToInt32:
       return kMachInt32;
     case IrOpcode::kFloat64Add:
     case IrOpcode::kFloat64Sub:
     case IrOpcode::kFloat64Mul:
     case IrOpcode::kFloat64Div:
     case IrOpcode::kFloat64Mod:
     case IrOpcode::kFloat64Sqrt:
-    case IrOpcode::kFloat64Floor:
-    case IrOpcode::kFloat64Ceil:
+    case IrOpcode::kFloat64RoundDown:
     case IrOpcode::kFloat64RoundTruncate:
     case IrOpcode::kFloat64RoundTiesAway:
       return kMachFloat64;
     case IrOpcode::kFloat64Equal:
     case IrOpcode::kFloat64LessThan:
     case IrOpcode::kFloat64LessThanOrEqual:
       return kMachBool;
     case IrOpcode::kFloat64ExtractLowWord32:
     case IrOpcode::kFloat64ExtractHighWord32:
       return kMachInt32;
@@ skipping 189 matching lines @@
     case IrOpcode::kFloat64Mod:
       return MarkAsDouble(node), VisitFloat64Mod(node);
     case IrOpcode::kFloat64Sqrt:
       return MarkAsDouble(node), VisitFloat64Sqrt(node);
     case IrOpcode::kFloat64Equal:
       return VisitFloat64Equal(node);
     case IrOpcode::kFloat64LessThan:
       return VisitFloat64LessThan(node);
     case IrOpcode::kFloat64LessThanOrEqual:
       return VisitFloat64LessThanOrEqual(node);
-    case IrOpcode::kFloat64Floor:
-      return MarkAsDouble(node), VisitFloat64Floor(node);
-    case IrOpcode::kFloat64Ceil:
-      return MarkAsDouble(node), VisitFloat64Ceil(node);
+    case IrOpcode::kFloat64RoundDown:
+      return MarkAsDouble(node), VisitFloat64RoundDown(node);
     case IrOpcode::kFloat64RoundTruncate:
       return MarkAsDouble(node), VisitFloat64RoundTruncate(node);
     case IrOpcode::kFloat64RoundTiesAway:
       return MarkAsDouble(node), VisitFloat64RoundTiesAway(node);
     case IrOpcode::kFloat64ExtractLowWord32:
       return VisitFloat64ExtractLowWord32(node);
     case IrOpcode::kFloat64ExtractHighWord32:
       return VisitFloat64ExtractHighWord32(node);
     case IrOpcode::kFloat64InsertLowWord32:
       return MarkAsDouble(node), VisitFloat64InsertLowWord32(node);
@@ skipping 353 matching lines @@
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   return MachineOperatorBuilder::Flag::kNoFlags;
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8