/usr/include/llvm-3.9/llvm/CodeGen/MIRYamlMapping.h is in llvm-3.9-dev 1:3.9.1-19ubuntu1.
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//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the mapping between various MIR data structures and
// their corresponding YAML representation.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_CODEGEN_MIRYAMLMAPPING_H
#define LLVM_LIB_CODEGEN_MIRYAMLMAPPING_H
#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/Support/YAMLTraits.h"
#include <vector>
namespace llvm {
namespace yaml {
/// A wrapper around std::string which contains a source range that's being
/// set during parsing.
struct StringValue {
std::string Value;
SMRange SourceRange;
StringValue() {}
StringValue(std::string Value) : Value(std::move(Value)) {}
bool operator==(const StringValue &Other) const {
return Value == Other.Value;
}
};
template <> struct ScalarTraits<StringValue> {
static void output(const StringValue &S, void *, llvm::raw_ostream &OS) {
OS << S.Value;
}
static StringRef input(StringRef Scalar, void *Ctx, StringValue &S) {
S.Value = Scalar.str();
if (const auto *Node =
reinterpret_cast<yaml::Input *>(Ctx)->getCurrentNode())
S.SourceRange = Node->getSourceRange();
return "";
}
static bool mustQuote(StringRef Scalar) { return needsQuotes(Scalar); }
};
struct FlowStringValue : StringValue {
FlowStringValue() {}
FlowStringValue(std::string Value) : StringValue(Value) {}
};
template <> struct ScalarTraits<FlowStringValue> {
static void output(const FlowStringValue &S, void *, llvm::raw_ostream &OS) {
return ScalarTraits<StringValue>::output(S, nullptr, OS);
}
static StringRef input(StringRef Scalar, void *Ctx, FlowStringValue &S) {
return ScalarTraits<StringValue>::input(Scalar, Ctx, S);
}
static bool mustQuote(StringRef Scalar) { return needsQuotes(Scalar); }
};
struct BlockStringValue {
StringValue Value;
};
template <> struct BlockScalarTraits<BlockStringValue> {
static void output(const BlockStringValue &S, void *Ctx, raw_ostream &OS) {
return ScalarTraits<StringValue>::output(S.Value, Ctx, OS);
}
static StringRef input(StringRef Scalar, void *Ctx, BlockStringValue &S) {
return ScalarTraits<StringValue>::input(Scalar, Ctx, S.Value);
}
};
/// A wrapper around unsigned which contains a source range that's being set
/// during parsing.
struct UnsignedValue {
unsigned Value;
SMRange SourceRange;
UnsignedValue() : Value(0) {}
UnsignedValue(unsigned Value) : Value(Value) {}
bool operator==(const UnsignedValue &Other) const {
return Value == Other.Value;
}
};
template <> struct ScalarTraits<UnsignedValue> {
static void output(const UnsignedValue &Value, void *Ctx, raw_ostream &OS) {
return ScalarTraits<unsigned>::output(Value.Value, Ctx, OS);
}
static StringRef input(StringRef Scalar, void *Ctx, UnsignedValue &Value) {
if (const auto *Node =
reinterpret_cast<yaml::Input *>(Ctx)->getCurrentNode())
Value.SourceRange = Node->getSourceRange();
return ScalarTraits<unsigned>::input(Scalar, Ctx, Value.Value);
}
static bool mustQuote(StringRef Scalar) {
return ScalarTraits<unsigned>::mustQuote(Scalar);
}
};
template <> struct ScalarEnumerationTraits<MachineJumpTableInfo::JTEntryKind> {
static void enumeration(yaml::IO &IO,
MachineJumpTableInfo::JTEntryKind &EntryKind) {
IO.enumCase(EntryKind, "block-address",
MachineJumpTableInfo::EK_BlockAddress);
IO.enumCase(EntryKind, "gp-rel64-block-address",
MachineJumpTableInfo::EK_GPRel64BlockAddress);
IO.enumCase(EntryKind, "gp-rel32-block-address",
MachineJumpTableInfo::EK_GPRel32BlockAddress);
IO.enumCase(EntryKind, "label-difference32",
MachineJumpTableInfo::EK_LabelDifference32);
IO.enumCase(EntryKind, "inline", MachineJumpTableInfo::EK_Inline);
IO.enumCase(EntryKind, "custom32", MachineJumpTableInfo::EK_Custom32);
}
};
} // end namespace yaml
} // end namespace llvm
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::StringValue)
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(llvm::yaml::FlowStringValue)
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(llvm::yaml::UnsignedValue)
namespace llvm {
namespace yaml {
struct VirtualRegisterDefinition {
UnsignedValue ID;
StringValue Class;
StringValue PreferredRegister;
// TODO: Serialize the target specific register hints.
};
template <> struct MappingTraits<VirtualRegisterDefinition> {
static void mapping(IO &YamlIO, VirtualRegisterDefinition &Reg) {
YamlIO.mapRequired("id", Reg.ID);
YamlIO.mapRequired("class", Reg.Class);
YamlIO.mapOptional("preferred-register", Reg.PreferredRegister,
StringValue()); // Don't print out when it's empty.
}
static const bool flow = true;
};
struct MachineFunctionLiveIn {
StringValue Register;
StringValue VirtualRegister;
};
template <> struct MappingTraits<MachineFunctionLiveIn> {
static void mapping(IO &YamlIO, MachineFunctionLiveIn &LiveIn) {
YamlIO.mapRequired("reg", LiveIn.Register);
YamlIO.mapOptional(
"virtual-reg", LiveIn.VirtualRegister,
StringValue()); // Don't print the virtual register when it's empty.
}
static const bool flow = true;
};
/// Serializable representation of stack object from the MachineFrameInfo class.
///
/// The flags 'isImmutable' and 'isAliased' aren't serialized, as they are
/// determined by the object's type and frame information flags.
/// Dead stack objects aren't serialized.
///
/// The 'isPreallocated' flag is determined by the local offset.
struct MachineStackObject {
enum ObjectType { DefaultType, SpillSlot, VariableSized };
UnsignedValue ID;
StringValue Name;
// TODO: Serialize unnamed LLVM alloca reference.
ObjectType Type = DefaultType;
int64_t Offset = 0;
uint64_t Size = 0;
unsigned Alignment = 0;
StringValue CalleeSavedRegister;
Optional<int64_t> LocalOffset;
StringValue DebugVar;
StringValue DebugExpr;
StringValue DebugLoc;
};
template <> struct ScalarEnumerationTraits<MachineStackObject::ObjectType> {
static void enumeration(yaml::IO &IO, MachineStackObject::ObjectType &Type) {
IO.enumCase(Type, "default", MachineStackObject::DefaultType);
IO.enumCase(Type, "spill-slot", MachineStackObject::SpillSlot);
IO.enumCase(Type, "variable-sized", MachineStackObject::VariableSized);
}
};
template <> struct MappingTraits<MachineStackObject> {
static void mapping(yaml::IO &YamlIO, MachineStackObject &Object) {
YamlIO.mapRequired("id", Object.ID);
YamlIO.mapOptional("name", Object.Name,
StringValue()); // Don't print out an empty name.
YamlIO.mapOptional(
"type", Object.Type,
MachineStackObject::DefaultType); // Don't print the default type.
YamlIO.mapOptional("offset", Object.Offset);
if (Object.Type != MachineStackObject::VariableSized)
YamlIO.mapRequired("size", Object.Size);
YamlIO.mapOptional("alignment", Object.Alignment);
YamlIO.mapOptional("callee-saved-register", Object.CalleeSavedRegister,
StringValue()); // Don't print it out when it's empty.
YamlIO.mapOptional("local-offset", Object.LocalOffset);
YamlIO.mapOptional("di-variable", Object.DebugVar,
StringValue()); // Don't print it out when it's empty.
YamlIO.mapOptional("di-expression", Object.DebugExpr,
StringValue()); // Don't print it out when it's empty.
YamlIO.mapOptional("di-location", Object.DebugLoc,
StringValue()); // Don't print it out when it's empty.
}
static const bool flow = true;
};
/// Serializable representation of the fixed stack object from the
/// MachineFrameInfo class.
struct FixedMachineStackObject {
enum ObjectType { DefaultType, SpillSlot };
UnsignedValue ID;
ObjectType Type = DefaultType;
int64_t Offset = 0;
uint64_t Size = 0;
unsigned Alignment = 0;
bool IsImmutable = false;
bool IsAliased = false;
StringValue CalleeSavedRegister;
};
template <>
struct ScalarEnumerationTraits<FixedMachineStackObject::ObjectType> {
static void enumeration(yaml::IO &IO,
FixedMachineStackObject::ObjectType &Type) {
IO.enumCase(Type, "default", FixedMachineStackObject::DefaultType);
IO.enumCase(Type, "spill-slot", FixedMachineStackObject::SpillSlot);
}
};
template <> struct MappingTraits<FixedMachineStackObject> {
static void mapping(yaml::IO &YamlIO, FixedMachineStackObject &Object) {
YamlIO.mapRequired("id", Object.ID);
YamlIO.mapOptional(
"type", Object.Type,
FixedMachineStackObject::DefaultType); // Don't print the default type.
YamlIO.mapOptional("offset", Object.Offset);
YamlIO.mapOptional("size", Object.Size);
YamlIO.mapOptional("alignment", Object.Alignment);
if (Object.Type != FixedMachineStackObject::SpillSlot) {
YamlIO.mapOptional("isImmutable", Object.IsImmutable);
YamlIO.mapOptional("isAliased", Object.IsAliased);
}
YamlIO.mapOptional("callee-saved-register", Object.CalleeSavedRegister,
StringValue()); // Don't print it out when it's empty.
}
static const bool flow = true;
};
struct MachineConstantPoolValue {
UnsignedValue ID;
StringValue Value;
unsigned Alignment = 0;
};
template <> struct MappingTraits<MachineConstantPoolValue> {
static void mapping(IO &YamlIO, MachineConstantPoolValue &Constant) {
YamlIO.mapRequired("id", Constant.ID);
YamlIO.mapOptional("value", Constant.Value);
YamlIO.mapOptional("alignment", Constant.Alignment);
}
};
struct MachineJumpTable {
struct Entry {
UnsignedValue ID;
std::vector<FlowStringValue> Blocks;
};
MachineJumpTableInfo::JTEntryKind Kind = MachineJumpTableInfo::EK_Custom32;
std::vector<Entry> Entries;
};
template <> struct MappingTraits<MachineJumpTable::Entry> {
static void mapping(IO &YamlIO, MachineJumpTable::Entry &Entry) {
YamlIO.mapRequired("id", Entry.ID);
YamlIO.mapOptional("blocks", Entry.Blocks);
}
};
} // end namespace yaml
} // end namespace llvm
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::MachineFunctionLiveIn)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::VirtualRegisterDefinition)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::MachineStackObject)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::FixedMachineStackObject)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::MachineConstantPoolValue)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::MachineJumpTable::Entry)
namespace llvm {
namespace yaml {
template <> struct MappingTraits<MachineJumpTable> {
static void mapping(IO &YamlIO, MachineJumpTable &JT) {
YamlIO.mapRequired("kind", JT.Kind);
YamlIO.mapOptional("entries", JT.Entries);
}
};
/// Serializable representation of MachineFrameInfo.
///
/// Doesn't serialize attributes like 'StackAlignment', 'IsStackRealignable' and
/// 'RealignOption' as they are determined by the target and LLVM function
/// attributes.
/// It also doesn't serialize attributes like 'NumFixedObject' and
/// 'HasVarSizedObjects' as they are determined by the frame objects themselves.
struct MachineFrameInfo {
bool IsFrameAddressTaken = false;
bool IsReturnAddressTaken = false;
bool HasStackMap = false;
bool HasPatchPoint = false;
uint64_t StackSize = 0;
int OffsetAdjustment = 0;
unsigned MaxAlignment = 0;
bool AdjustsStack = false;
bool HasCalls = false;
StringValue StackProtector;
// TODO: Serialize FunctionContextIdx
unsigned MaxCallFrameSize = 0;
bool HasOpaqueSPAdjustment = false;
bool HasVAStart = false;
bool HasMustTailInVarArgFunc = false;
StringValue SavePoint;
StringValue RestorePoint;
};
template <> struct MappingTraits<MachineFrameInfo> {
static void mapping(IO &YamlIO, MachineFrameInfo &MFI) {
YamlIO.mapOptional("isFrameAddressTaken", MFI.IsFrameAddressTaken);
YamlIO.mapOptional("isReturnAddressTaken", MFI.IsReturnAddressTaken);
YamlIO.mapOptional("hasStackMap", MFI.HasStackMap);
YamlIO.mapOptional("hasPatchPoint", MFI.HasPatchPoint);
YamlIO.mapOptional("stackSize", MFI.StackSize);
YamlIO.mapOptional("offsetAdjustment", MFI.OffsetAdjustment);
YamlIO.mapOptional("maxAlignment", MFI.MaxAlignment);
YamlIO.mapOptional("adjustsStack", MFI.AdjustsStack);
YamlIO.mapOptional("hasCalls", MFI.HasCalls);
YamlIO.mapOptional("stackProtector", MFI.StackProtector,
StringValue()); // Don't print it out when it's empty.
YamlIO.mapOptional("maxCallFrameSize", MFI.MaxCallFrameSize);
YamlIO.mapOptional("hasOpaqueSPAdjustment", MFI.HasOpaqueSPAdjustment);
YamlIO.mapOptional("hasVAStart", MFI.HasVAStart);
YamlIO.mapOptional("hasMustTailInVarArgFunc", MFI.HasMustTailInVarArgFunc);
YamlIO.mapOptional("savePoint", MFI.SavePoint,
StringValue()); // Don't print it out when it's empty.
YamlIO.mapOptional("restorePoint", MFI.RestorePoint,
StringValue()); // Don't print it out when it's empty.
}
};
struct MachineFunction {
StringRef Name;
unsigned Alignment = 0;
bool ExposesReturnsTwice = false;
bool HasInlineAsm = false;
// MachineFunctionProperties
bool AllVRegsAllocated = false;
// Register information
bool IsSSA = false;
bool TracksRegLiveness = false;
bool TracksSubRegLiveness = false;
std::vector<VirtualRegisterDefinition> VirtualRegisters;
std::vector<MachineFunctionLiveIn> LiveIns;
Optional<std::vector<FlowStringValue>> CalleeSavedRegisters;
// TODO: Serialize the various register masks.
// Frame information
MachineFrameInfo FrameInfo;
std::vector<FixedMachineStackObject> FixedStackObjects;
std::vector<MachineStackObject> StackObjects;
std::vector<MachineConstantPoolValue> Constants; /// Constant pool.
MachineJumpTable JumpTableInfo;
BlockStringValue Body;
};
template <> struct MappingTraits<MachineFunction> {
static void mapping(IO &YamlIO, MachineFunction &MF) {
YamlIO.mapRequired("name", MF.Name);
YamlIO.mapOptional("alignment", MF.Alignment);
YamlIO.mapOptional("exposesReturnsTwice", MF.ExposesReturnsTwice);
YamlIO.mapOptional("hasInlineAsm", MF.HasInlineAsm);
YamlIO.mapOptional("allVRegsAllocated", MF.AllVRegsAllocated);
YamlIO.mapOptional("isSSA", MF.IsSSA);
YamlIO.mapOptional("tracksRegLiveness", MF.TracksRegLiveness);
YamlIO.mapOptional("tracksSubRegLiveness", MF.TracksSubRegLiveness);
YamlIO.mapOptional("registers", MF.VirtualRegisters);
YamlIO.mapOptional("liveins", MF.LiveIns);
YamlIO.mapOptional("calleeSavedRegisters", MF.CalleeSavedRegisters);
YamlIO.mapOptional("frameInfo", MF.FrameInfo);
YamlIO.mapOptional("fixedStack", MF.FixedStackObjects);
YamlIO.mapOptional("stack", MF.StackObjects);
YamlIO.mapOptional("constants", MF.Constants);
if (!YamlIO.outputting() || !MF.JumpTableInfo.Entries.empty())
YamlIO.mapOptional("jumpTable", MF.JumpTableInfo);
YamlIO.mapOptional("body", MF.Body);
}
};
} // end namespace yaml
} // end namespace llvm
#endif
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