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//===- CodeGenIntrinsic.h - Intrinsic Class Wrapper ------------*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines a wrapper class for the 'Intrinsic' TableGen class.
//
//===----------------------------------------------------------------------===//
#ifndef CODEGEN_INTRINSIC_H
#define CODEGEN_INTRINSIC_H
#include <string>
#include <vector>
#include "llvm/CodeGen/ValueTypes.h"
namespace llvm {
class Record;
class RecordKeeper;
class CodeGenTarget;
struct CodeGenIntrinsic {
Record *TheDef; // The actual record defining this intrinsic.
std::string Name; // The name of the LLVM function "llvm.bswap.i32"
std::string EnumName; // The name of the enum "bswap_i32"
std::string GCCBuiltinName;// Name of the corresponding GCC builtin, or "".
std::string TargetPrefix; // Target prefix, e.g. "ppc" for t-s intrinsics.
/// IntrinsicSignature - This structure holds the return values and
/// parameter values of an intrinsic. If the number of return values is > 1,
/// then the intrinsic implicitly returns a first-class aggregate. The
/// numbering of the types starts at 0 with the first return value and
/// continues from there through the parameter list. This is useful for
/// "matching" types.
struct IntrinsicSignature {
/// RetVTs - The MVT::SimpleValueType for each return type. Note that this
/// list is only populated when in the context of a target .td file. When
/// building Intrinsics.td, this isn't available, because we don't know
/// the target pointer size.
std::vector<MVT::SimpleValueType> RetVTs;
/// RetTypeDefs - The records for each return type.
std::vector<Record*> RetTypeDefs;
/// ParamVTs - The MVT::SimpleValueType for each parameter type. Note that
/// this list is only populated when in the context of a target .td file.
/// When building Intrinsics.td, this isn't available, because we don't
/// know the target pointer size.
std::vector<MVT::SimpleValueType> ParamVTs;
/// ParamTypeDefs - The records for each parameter type.
std::vector<Record*> ParamTypeDefs;
};
IntrinsicSignature IS;
// Memory mod/ref behavior of this intrinsic.
enum {
NoMem, ReadArgMem, ReadMem, ReadWriteArgMem, ReadWriteMem
} ModRef;
/// This is set to true if the intrinsic is overloaded by its argument
/// types.
bool isOverloaded;
/// isCommutative - True if the intrinsic is commutative.
bool isCommutative;
/// canThrow - True if the intrinsic can throw.
bool canThrow;
enum ArgAttribute {
NoCapture
};
std::vector<std::pair<unsigned, ArgAttribute> > ArgumentAttributes;
CodeGenIntrinsic(Record *R);
};
/// LoadIntrinsics - Read all of the intrinsics defined in the specified
/// .td file.
std::vector<CodeGenIntrinsic> LoadIntrinsics(const RecordKeeper &RC,
bool TargetOnly);
}
#endif
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