//
//===----------------------------------------------------------------------===//
-#ifndef CODEGEN_INSTRUCTION_H
-#define CODEGEN_INSTRUCTION_H
+#ifndef LLVM_UTILS_TABLEGEN_CODEGENINSTRUCTION_H
+#define LLVM_UTILS_TABLEGEN_CODEGENINSTRUCTION_H
-#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/ADT/StringRef.h"
+#include "llvm/CodeGen/MachineValueType.h"
+#include "llvm/Support/SourceMgr.h"
#include <string>
-#include <vector>
#include <utility>
+#include <vector>
namespace llvm {
class Record;
class DagInit;
class CodeGenTarget;
class StringRef;
-
+
class CGIOperandList {
public:
class ConstraintInfo {
unsigned OtherTiedOperand;
public:
ConstraintInfo() : Kind(None) {}
-
+
static ConstraintInfo getEarlyClobber() {
ConstraintInfo I;
I.Kind = EarlyClobber;
I.OtherTiedOperand = 0;
return I;
}
-
+
static ConstraintInfo getTied(unsigned Op) {
ConstraintInfo I;
I.Kind = Tied;
I.OtherTiedOperand = Op;
return I;
}
-
+
bool isNone() const { return Kind == None; }
bool isEarlyClobber() const { return Kind == EarlyClobber; }
bool isTied() const { return Kind == Tied; }
-
+
unsigned getTiedOperand() const {
assert(isTied());
return OtherTiedOperand;
/// Rec - The definition this operand is declared as.
///
Record *Rec;
-
+
/// Name - If this operand was assigned a symbolic name, this is it,
/// otherwise, it's empty.
std::string Name;
-
+
/// PrinterMethodName - The method used to print operands of this type in
/// the asmprinter.
std::string PrinterMethodName;
-
+
/// EncoderMethodName - The method used to get the machine operand value
/// for binary encoding. "getMachineOpValue" by default.
std::string EncoderMethodName;
-
+
+ /// OperandType - A value from MCOI::OperandType representing the type of
+ /// the operand.
+ std::string OperandType;
+
/// MIOperandNo - Currently (this is meant to be phased out), some logical
/// operands correspond to multiple MachineInstr operands. In the X86
/// target for example, one address operand is represented as 4
/// does, this contains the MI operand index of this operand.
unsigned MIOperandNo;
unsigned MINumOperands; // The number of operands.
-
+
/// DoNotEncode - Bools are set to true in this vector for each operand in
/// the DisableEncoding list. These should not be emitted by the code
/// emitter.
std::vector<bool> DoNotEncode;
-
+
/// MIOperandInfo - Default MI operand type. Note an operand may be made
/// up of multiple MI operands.
DagInit *MIOperandInfo;
-
+
/// Constraint info for this operand. This operand can have pieces, so we
/// track constraint info for each.
std::vector<ConstraintInfo> Constraints;
-
+
OperandInfo(Record *R, const std::string &N, const std::string &PMN,
- const std::string &EMN, unsigned MION, unsigned MINO,
- DagInit *MIOI)
+ const std::string &EMN, const std::string &OT, unsigned MION,
+ unsigned MINO, DagInit *MIOI)
: Rec(R), Name(N), PrinterMethodName(PMN), EncoderMethodName(EMN),
- MIOperandNo(MION), MINumOperands(MINO), MIOperandInfo(MIOI) {}
-
-
+ OperandType(OT), MIOperandNo(MION), MINumOperands(MINO),
+ MIOperandInfo(MIOI) {}
+
+
/// getTiedOperand - If this operand is tied to another one, return the
/// other operand number. Otherwise, return -1.
int getTiedRegister() const {
return -1;
}
};
-
+
CGIOperandList(Record *D);
-
+
Record *TheDef; // The actual record containing this OperandList.
/// NumDefs - Number of def operands declared, this is the number of
/// elements in the instruction's (outs) list.
///
unsigned NumDefs;
-
+
/// OperandList - The list of declared operands, along with their declared
/// type (which is a record).
std::vector<OperandInfo> OperandList;
-
+
// Information gleaned from the operand list.
bool isPredicable;
bool hasOptionalDef;
bool isVariadic;
-
+
// Provide transparent accessors to the operand list.
+ bool empty() const { return OperandList.empty(); }
unsigned size() const { return OperandList.size(); }
const OperandInfo &operator[](unsigned i) const { return OperandList[i]; }
OperandInfo &operator[](unsigned i) { return OperandList[i]; }
OperandInfo &back() { return OperandList.back(); }
const OperandInfo &back() const { return OperandList.back(); }
-
-
+
+ typedef std::vector<OperandInfo>::iterator iterator;
+ typedef std::vector<OperandInfo>::const_iterator const_iterator;
+ iterator begin() { return OperandList.begin(); }
+ const_iterator begin() const { return OperandList.begin(); }
+ iterator end() { return OperandList.end(); }
+ const_iterator end() const { return OperandList.end(); }
+
/// getOperandNamed - Return the index of the operand with the specified
/// non-empty name. If the instruction does not have an operand with the
- /// specified name, throw an exception.
+ /// specified name, abort.
unsigned getOperandNamed(StringRef Name) const;
-
+
/// hasOperandNamed - Query whether the instruction has an operand of the
/// given name. If so, return true and set OpIdx to the index of the
/// operand. Otherwise, return false.
bool hasOperandNamed(StringRef Name, unsigned &OpIdx) const;
-
+
/// ParseOperandName - Parse an operand name like "$foo" or "$foo.bar",
/// where $foo is a whole operand and $foo.bar refers to a suboperand.
- /// This throws an exception if the name is invalid. If AllowWholeOp is
- /// true, references to operands with suboperands are allowed, otherwise
- /// not.
+ /// This aborts if the name is invalid. If AllowWholeOp is true, references
+ /// to operands with suboperands are allowed, otherwise not.
std::pair<unsigned,unsigned> ParseOperandName(const std::string &Op,
bool AllowWholeOp = true);
-
+
/// getFlattenedOperandNumber - Flatten a operand/suboperand pair into a
/// flat machineinstr operand #.
unsigned getFlattenedOperandNumber(std::pair<unsigned,unsigned> Op) const {
return OperandList[Op.first].MIOperandNo + Op.second;
}
-
+
/// getSubOperandNumber - Unflatten a operand number into an
/// operand/suboperand pair.
std::pair<unsigned,unsigned> getSubOperandNumber(unsigned Op) const {
return std::make_pair(i, Op-OperandList[i].MIOperandNo);
}
}
-
-
+
+
/// isFlatOperandNotEmitted - Return true if the specified flat operand #
/// should not be emitted with the code emitter.
bool isFlatOperandNotEmitted(unsigned FlatOpNo) const {
return OperandList[Op.first].DoNotEncode[Op.second];
return false;
}
-
+
void ProcessDisableEncoding(std::string Value);
};
-
+
class CodeGenInstruction {
public:
std::vector<Record*> ImplicitDefs, ImplicitUses;
// Various boolean values we track for the instruction.
- bool isReturn;
- bool isBranch;
- bool isIndirectBranch;
- bool isCompare;
- bool isBarrier;
- bool isCall;
- bool canFoldAsLoad;
- bool mayLoad, mayStore;
- bool isPredicable;
- bool isConvertibleToThreeAddress;
- bool isCommutable;
- bool isTerminator;
- bool isReMaterializable;
- bool hasDelaySlot;
- bool usesCustomInserter;
- bool hasCtrlDep;
- bool isNotDuplicable;
- bool hasSideEffects;
- bool neverHasSideEffects;
- bool isAsCheapAsAMove;
- bool hasExtraSrcRegAllocReq;
- bool hasExtraDefRegAllocReq;
+ bool isReturn : 1;
+ bool isBranch : 1;
+ bool isIndirectBranch : 1;
+ bool isCompare : 1;
+ bool isMoveImm : 1;
+ bool isBitcast : 1;
+ bool isSelect : 1;
+ bool isBarrier : 1;
+ bool isCall : 1;
+ bool canFoldAsLoad : 1;
+ bool mayLoad : 1;
+ bool mayLoad_Unset : 1;
+ bool mayStore : 1;
+ bool mayStore_Unset : 1;
+ bool isPredicable : 1;
+ bool isConvertibleToThreeAddress : 1;
+ bool isCommutable : 1;
+ bool isTerminator : 1;
+ bool isReMaterializable : 1;
+ bool hasDelaySlot : 1;
+ bool usesCustomInserter : 1;
+ bool hasPostISelHook : 1;
+ bool hasCtrlDep : 1;
+ bool isNotDuplicable : 1;
+ bool hasSideEffects : 1;
+ bool hasSideEffects_Unset : 1;
+ bool neverHasSideEffects : 1;
+ bool isAsCheapAsAMove : 1;
+ bool hasExtraSrcRegAllocReq : 1;
+ bool hasExtraDefRegAllocReq : 1;
+ bool isCodeGenOnly : 1;
+ bool isPseudo : 1;
+ bool isRegSequence : 1;
+ bool isExtractSubreg : 1;
+ bool isInsertSubreg : 1;
+
+ std::string DeprecatedReason;
+ bool HasComplexDeprecationPredicate;
+
+ /// Are there any undefined flags?
+ bool hasUndefFlags() const {
+ return mayLoad_Unset || mayStore_Unset || hasSideEffects_Unset;
+ }
+ // The record used to infer instruction flags, or NULL if no flag values
+ // have been inferred.
+ Record *InferredFrom;
CodeGenInstruction(Record *R);
/// MVT::Other.
MVT::SimpleValueType
HasOneImplicitDefWithKnownVT(const CodeGenTarget &TargetInfo) const;
-
-
+
+
/// FlattenAsmStringVariants - Flatten the specified AsmString to only
/// include text from the specified variant, returning the new string.
static std::string FlattenAsmStringVariants(StringRef AsmString,
unsigned Variant);
};
-
-
+
+
/// CodeGenInstAlias - This represents an InstAlias definition.
class CodeGenInstAlias {
public:
Record *TheDef; // The actual record defining this InstAlias.
-
+
/// AsmString - The format string used to emit a .s file for the
/// instruction.
std::string AsmString;
-
+
/// Result - The result instruction.
DagInit *Result;
-
+
/// ResultInst - The instruction generated by the alias (decoded from
/// Result).
CodeGenInstruction *ResultInst;
-
-
+
+
struct ResultOperand {
private:
- StringRef Name;
+ std::string Name;
Record *R;
-
+
int64_t Imm;
- public:
+ public:
enum {
K_Record,
- K_Imm
+ K_Imm,
+ K_Reg
} Kind;
-
- ResultOperand(StringRef N, Record *r) : Name(N), R(r), Kind(K_Record) {}
+
+ ResultOperand(std::string N, Record *r) : Name(N), R(r), Kind(K_Record) {}
ResultOperand(int64_t I) : Imm(I), Kind(K_Imm) {}
+ ResultOperand(Record *r) : R(r), Kind(K_Reg) {}
bool isRecord() const { return Kind == K_Record; }
bool isImm() const { return Kind == K_Imm; }
-
+ bool isReg() const { return Kind == K_Reg; }
+
StringRef getName() const { assert(isRecord()); return Name; }
Record *getRecord() const { assert(isRecord()); return R; }
int64_t getImm() const { assert(isImm()); return Imm; }
+ Record *getRegister() const { assert(isReg()); return R; }
+
+ unsigned getMINumOperands() const;
};
-
+
/// ResultOperands - The decoded operands for the result instruction.
std::vector<ResultOperand> ResultOperands;
-
- CodeGenInstAlias(Record *R, CodeGenTarget &T);
-
- /// getResultInstOperandIndexForResultOperandIndex - Given an index into the
- /// ResultOperands array, translate it to a valid index in ResultInst's
- /// operand list.
- unsigned getResultInstOperandIndexForResultOperandIndex(unsigned i) const;
- };
+
+ /// ResultInstOperandIndex - For each operand, this vector holds a pair of
+ /// indices to identify the corresponding operand in the result
+ /// instruction. The first index specifies the operand and the second
+ /// index specifies the suboperand. If there are no suboperands or if all
+ /// of them are matched by the operand, the second value should be -1.
+ std::vector<std::pair<unsigned, int> > ResultInstOperandIndex;
+
+ CodeGenInstAlias(Record *R, unsigned Variant, CodeGenTarget &T);
+
+ bool tryAliasOpMatch(DagInit *Result, unsigned AliasOpNo,
+ Record *InstOpRec, bool hasSubOps, ArrayRef<SMLoc> Loc,
+ CodeGenTarget &T, ResultOperand &ResOp);
+ };
}
#endif
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