[turbofan] Make MachineType a pair of enums.

test/unittests/compiler/common-operator-unittest.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 <limits>
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 #include "src/compiler/operator-properties.h"
@@ skipping 254 matching lines @@
     EXPECT_EQ(1, op->ControlInputCount());
     EXPECT_EQ(1, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, op->ValueOutputCount());
     EXPECT_EQ(0, op->EffectOutputCount());
     EXPECT_EQ(1, op->ControlOutputCount());
   }
 }
 
 
 TEST_F(CommonOperatorTest, Select) {
-  static const MachineType kTypes[] = {
-      kMachInt8,    kMachUint8,   kMachInt16,    kMachUint16,
-      kMachInt32,   kMachUint32,  kMachInt64,    kMachUint64,
-      kMachFloat32, kMachFloat64, kMachAnyTagged};
-  TRACED_FOREACH(MachineType, type, kTypes) {
+  static const MachineRepresentation kMachineRepresentations[] = {
+      MachineRepresentation::kBit,     MachineRepresentation::kWord8,
+      MachineRepresentation::kWord16,  MachineRepresentation::kWord32,
+      MachineRepresentation::kWord64,  MachineRepresentation::kFloat32,
+      MachineRepresentation::kFloat64, MachineRepresentation::kTagged};
+
+
+  TRACED_FOREACH(MachineRepresentation, rep, kMachineRepresentations) {
     TRACED_FOREACH(BranchHint, hint, kBranchHints) {
-      const Operator* const op = common()->Select(type, hint);
+      const Operator* const op = common()->Select(rep, hint);
       EXPECT_EQ(IrOpcode::kSelect, op->opcode());
       EXPECT_EQ(Operator::kPure, op->properties());
-      EXPECT_EQ(type, SelectParametersOf(op).type());
+      EXPECT_EQ(rep, SelectParametersOf(op).representation());
       EXPECT_EQ(hint, SelectParametersOf(op).hint());
       EXPECT_EQ(3, op->ValueInputCount());
       EXPECT_EQ(0, op->EffectInputCount());
       EXPECT_EQ(0, op->ControlInputCount());
       EXPECT_EQ(3, OperatorProperties::GetTotalInputCount(op));
       EXPECT_EQ(1, op->ValueOutputCount());
       EXPECT_EQ(0, op->EffectOutputCount());
       EXPECT_EQ(0, op->ControlOutputCount());
     }
   }
@@ skipping 79 matching lines @@
   EXPECT_EQ(1, op->EffectInputCount());
   EXPECT_EQ(2, OperatorProperties::GetTotalInputCount(op));
   EXPECT_EQ(0, op->ControlOutputCount());
   EXPECT_EQ(1, op->EffectOutputCount());
   EXPECT_EQ(1, op->ValueOutputCount());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8