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machine-type.cc
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99 lines (91 loc) · 3.02 KB
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// 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/codegen/machine-type.h"
#include "src/utils/ostreams.h"
namespace v8 {
namespace internal {
bool IsSubtype(MachineRepresentation rep1, MachineRepresentation rep2) {
if (rep1 == rep2) return true;
switch (rep1) {
case MachineRepresentation::kTaggedSigned: // Fall through.
case MachineRepresentation::kTaggedPointer:
return rep2 == MachineRepresentation::kTagged;
case MachineRepresentation::kCompressedPointer:
return rep2 == MachineRepresentation::kCompressed;
default:
return false;
}
}
std::ostream& operator<<(std::ostream& os, MachineRepresentation rep) {
return os << MachineReprToString(rep);
}
const char* MachineReprToString(MachineRepresentation rep) {
switch (rep) {
case MachineRepresentation::kNone:
return "kMachNone";
case MachineRepresentation::kBit:
return "kRepBit";
case MachineRepresentation::kWord8:
return "kRepWord8";
case MachineRepresentation::kWord16:
return "kRepWord16";
case MachineRepresentation::kWord32:
return "kRepWord32";
case MachineRepresentation::kWord64:
return "kRepWord64";
case MachineRepresentation::kFloat32:
return "kRepFloat32";
case MachineRepresentation::kFloat64:
return "kRepFloat64";
case MachineRepresentation::kSimd128:
return "kRepSimd128";
case MachineRepresentation::kTaggedSigned:
return "kRepTaggedSigned";
case MachineRepresentation::kTaggedPointer:
return "kRepTaggedPointer";
case MachineRepresentation::kTagged:
return "kRepTagged";
case MachineRepresentation::kCompressedPointer:
return "kRepCompressedPointer";
case MachineRepresentation::kCompressed:
return "kRepCompressed";
case MachineRepresentation::kMapWord:
return "kRepMapWord";
}
UNREACHABLE();
}
std::ostream& operator<<(std::ostream& os, MachineSemantic type) {
switch (type) {
case MachineSemantic::kNone:
return os << "kMachNone";
case MachineSemantic::kBool:
return os << "kTypeBool";
case MachineSemantic::kInt32:
return os << "kTypeInt32";
case MachineSemantic::kUint32:
return os << "kTypeUint32";
case MachineSemantic::kInt64:
return os << "kTypeInt64";
case MachineSemantic::kUint64:
return os << "kTypeUint64";
case MachineSemantic::kNumber:
return os << "kTypeNumber";
case MachineSemantic::kAny:
return os << "kTypeAny";
}
UNREACHABLE();
}
std::ostream& operator<<(std::ostream& os, MachineType type) {
if (type == MachineType::None()) {
return os;
} else if (type.representation() == MachineRepresentation::kNone) {
return os << type.semantic();
} else if (type.semantic() == MachineSemantic::kNone) {
return os << type.representation();
} else {
return os << type.representation() << "|" << type.semantic();
}
}
} // namespace internal
} // namespace v8