factor the operand list (and related fields/operations) out of
CodeGenInstruction into its own helper class. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117893 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index 7f9d249..93bec14 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -24,40 +24,33 @@
class DagInit;
class CodeGenTarget;
class StringRef;
-
- class CodeGenInstruction {
+
+ class CGIOperandList {
public:
- Record *TheDef; // The actual record defining this instruction.
- std::string Namespace; // The namespace the instruction is in.
-
- /// AsmString - The format string used to emit a .s file for the
- /// instruction.
- std::string AsmString;
-
class ConstraintInfo {
enum { None, EarlyClobber, Tied } Kind;
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;
@@ -70,19 +63,19 @@
/// 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;
-
+
/// 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
@@ -91,35 +84,113 @@
/// 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)
- : Rec(R), Name(N), PrinterMethodName(PMN), EncoderMethodName(EMN),
- MIOperandNo(MION), MINumOperands(MINO), MIOperandInfo(MIOI) {}
+ : Rec(R), Name(N), PrinterMethodName(PMN), EncoderMethodName(EMN),
+ MIOperandNo(MION), MINumOperands(MINO), MIOperandInfo(MIOI) {}
};
+
+ 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.
+ 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(); }
+
+
+ /// 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.
+ 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.
+ 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 {
+ for (unsigned i = 0; ; ++i) {
+ assert(i < OperandList.size() && "Invalid flat operand #");
+ if (OperandList[i].MIOperandNo+OperandList[i].MINumOperands > Op)
+ 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 {
+ std::pair<unsigned,unsigned> Op = getSubOperandNumber(FlatOpNo);
+ if (OperandList[Op.first].DoNotEncode.size() > Op.second)
+ return OperandList[Op.first].DoNotEncode[Op.second];
+ return false;
+ }
+
+ void ProcessDisableEncoding(std::string Value);
+ };
+
+
+ class CodeGenInstruction {
+ public:
+ Record *TheDef; // The actual record defining this instruction.
+ std::string Namespace; // The namespace the instruction is in.
+
+ /// AsmString - The format string used to emit a .s file for the
+ /// instruction.
+ std::string AsmString;
+
+ /// Operands - This is information about the (ins) and (outs) list specified
+ /// to the instruction.
+ CGIOperandList Operands;
/// ImplicitDefs/ImplicitUses - These are lists of registers that are
/// implicitly defined and used by the instruction.
@@ -141,62 +212,17 @@
bool isReMaterializable;
bool hasDelaySlot;
bool usesCustomInserter;
- bool isVariadic;
bool hasCtrlDep;
bool isNotDuplicable;
- bool hasOptionalDef;
bool hasSideEffects;
bool neverHasSideEffects;
bool isAsCheapAsAMove;
bool hasExtraSrcRegAllocReq;
bool hasExtraDefRegAllocReq;
- /// 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.
- 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 {
- for (unsigned i = 0; ; ++i) {
- assert(i < OperandList.size() && "Invalid flat operand #");
- if (OperandList[i].MIOperandNo+OperandList[i].MINumOperands > Op)
- 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 {
- std::pair<unsigned,unsigned> Op = getSubOperandNumber(FlatOpNo);
- if (OperandList[Op.first].DoNotEncode.size() > Op.second)
- return OperandList[Op.first].DoNotEncode[Op.second];
- return false;
- }
CodeGenInstruction(Record *R);
- /// 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.
- 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;
-
/// HasOneImplicitDefWithKnownVT - If the instruction has at least one
/// implicit def and it has a known VT, return the VT, otherwise return
/// MVT::Other.
@@ -209,6 +235,6 @@
static std::string FlattenAsmStringVariants(StringRef AsmString,
unsigned Variant);
};
-}
+ }
#endif