/// Operand Type - Operands are tagged with one of the values of this enum.
enum OperandType {
- OPERAND_UNKNOWN,
- OPERAND_IMMEDIATE,
- OPERAND_REGISTER,
- OPERAND_MEMORY,
- OPERAND_PCREL
+ OPERAND_UNKNOWN = 0,
+ OPERAND_IMMEDIATE = 1,
+ OPERAND_REGISTER = 2,
+ OPERAND_MEMORY = 3,
+ OPERAND_PCREL = 4,
+ OPERAND_FIRST_TARGET = 5
};
}
Rematerializable,
CheapAsAMove,
ExtraSrcRegAllocReq,
- ExtraDefRegAllocReq
+ ExtraDefRegAllocReq,
+ RegSequence,
+ ExtractSubreg,
+ InsertSubreg
};
}
const uint16_t *ImplicitUses; // Registers implicitly read by this instr
const uint16_t *ImplicitDefs; // Registers implicitly defined by this instr
const MCOperandInfo *OpInfo; // 'NumOperands' entries about operands
- uint64_t DeprecatedFeatureMask;// Feature bits that this is deprecated on, if any
+ FeatureBitset DeprecatedFeatureMask; // Feature bits that this is deprecated on, if any
// A complex method to determine is a certain is deprecated or not, and return
// the reason for deprecation.
bool (*ComplexDeprecationInfo)(MCInst &, MCSubtargetInfo &, std::string &);
std::string &Info) const {
if (ComplexDeprecationInfo)
return ComplexDeprecationInfo(MI, STI, Info);
- if ((DeprecatedFeatureMask & STI.getFeatureBits()) != 0) {
+ if ((STI.getFeatureBits() & DeprecatedFeatureMask).any()) {
// FIXME: it would be nice to include the subtarget feature here.
Info = "deprecated";
return true;
return Flags & (1 << MCID::FoldableAsLoad);
}
+ /// \brief Return true if this instruction behaves
+ /// the same way as the generic REG_SEQUENCE instructions.
+ /// E.g., on ARM,
+ /// dX VMOVDRR rY, rZ
+ /// is equivalent to
+ /// dX = REG_SEQUENCE rY, ssub_0, rZ, ssub_1.
+ ///
+ /// Note that for the optimizers to be able to take advantage of
+ /// this property, TargetInstrInfo::getRegSequenceLikeInputs has to be
+ /// override accordingly.
+ bool isRegSequenceLike() const { return Flags & (1 << MCID::RegSequence); }
+
+ /// \brief Return true if this instruction behaves
+ /// the same way as the generic EXTRACT_SUBREG instructions.
+ /// E.g., on ARM,
+ /// rX, rY VMOVRRD dZ
+ /// is equivalent to two EXTRACT_SUBREG:
+ /// rX = EXTRACT_SUBREG dZ, ssub_0
+ /// rY = EXTRACT_SUBREG dZ, ssub_1
+ ///
+ /// Note that for the optimizers to be able to take advantage of
+ /// this property, TargetInstrInfo::getExtractSubregLikeInputs has to be
+ /// override accordingly.
+ bool isExtractSubregLike() const {
+ return Flags & (1 << MCID::ExtractSubreg);
+ }
+
+ /// \brief Return true if this instruction behaves
+ /// the same way as the generic INSERT_SUBREG instructions.
+ /// E.g., on ARM,
+ /// dX = VSETLNi32 dY, rZ, Imm
+ /// is equivalent to a INSERT_SUBREG:
+ /// dX = INSERT_SUBREG dY, rZ, translateImmToSubIdx(Imm)
+ ///
+ /// Note that for the optimizers to be able to take advantage of
+ /// this property, TargetInstrInfo::getInsertSubregLikeInputs has to be
+ /// override accordingly.
+ bool isInsertSubregLike() const {
+ return Flags & (1 << MCID::InsertSubreg);
+ }
+
//===--------------------------------------------------------------------===//
// Side Effect Analysis
//===--------------------------------------------------------------------===//