mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-25 04:39:44 +00:00
0c517c8dff
This will allow to switch to a different string storage in an upcoming commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288612 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//===- SubtargetFeatureInfo.h - Helpers for subtarget features ------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_UTIL_TABLEGEN_SUBTARGETFEATUREINFO_H
|
|
#define LLVM_UTIL_TABLEGEN_SUBTARGETFEATUREINFO_H
|
|
|
|
#include "llvm/TableGen/Error.h"
|
|
#include "llvm/TableGen/Record.h"
|
|
|
|
#include <map>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
class Record;
|
|
class RecordKeeper;
|
|
|
|
/// Helper class for storing information on a subtarget feature which
|
|
/// participates in instruction matching.
|
|
struct SubtargetFeatureInfo {
|
|
/// \brief The predicate record for this feature.
|
|
Record *TheDef;
|
|
|
|
/// \brief An unique index assigned to represent this feature.
|
|
uint64_t Index;
|
|
|
|
SubtargetFeatureInfo(Record *D, uint64_t Idx) : TheDef(D), Index(Idx) {}
|
|
|
|
/// \brief The name of the enumerated constant identifying this feature.
|
|
std::string getEnumName() const {
|
|
return "Feature_" + TheDef->getName().str();
|
|
}
|
|
|
|
void dump() const;
|
|
static std::vector<std::pair<Record *, SubtargetFeatureInfo>>
|
|
getAll(const RecordKeeper &Records);
|
|
|
|
/// Emit the subtarget feature flag definitions.
|
|
static void emitSubtargetFeatureFlagEnumeration(
|
|
std::map<Record *, SubtargetFeatureInfo, LessRecordByID>
|
|
&SubtargetFeatures,
|
|
raw_ostream &OS);
|
|
|
|
static void emitNameTable(std::map<Record *, SubtargetFeatureInfo,
|
|
LessRecordByID> &SubtargetFeatures,
|
|
raw_ostream &OS);
|
|
|
|
/// Emit the function to compute the list of available features given a
|
|
/// subtarget.
|
|
///
|
|
/// \param TargetName The name of the target as used in class prefixes (e.g.
|
|
/// <TargetName>Subtarget)
|
|
/// \param ClassName The name of the class (without the <Target> prefix)
|
|
/// that will contain the generated functions.
|
|
/// \param FuncName The name of the function to emit.
|
|
/// \param SubtargetFeatures A map of TableGen records to the
|
|
/// SubtargetFeatureInfo equivalent.
|
|
static void emitComputeAvailableFeatures(
|
|
StringRef TargetName, StringRef ClassName, StringRef FuncName,
|
|
std::map<Record *, SubtargetFeatureInfo, LessRecordByID>
|
|
&SubtargetFeatures,
|
|
raw_ostream &OS);
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_UTIL_TABLEGEN_SUBTARGETFEATUREINFO_H
|