230       assert(!Operands[OpNo].isTied() && "Cannot move tied operands");  in addOperand()
299   // Moving tied operands would break the ties.  in removeOperand()
302       assert(!Operands[i].isTied() && "Cannot move tied operands");  in removeOperand()
959   // For tied uses on inline asm, get the constraint from the def.  in getRegClassConstraint()
1150 /// tieOperands - Mark operands at DefIdx and UseIdx as tied to each other.
1152 /// Use and def operands can be tied together, indicated by a non-zero TiedTo
1155 /// 0:              Operand is not tied to anything.
1156 /// 1 to TiedMax-1: Tied to getOperand(TiedTo-1).
1157 /// TiedMax:        Tied to an operand >= TiedMax-1.
1159 /// The tied def must be one of the first TiedMax operands on a normal
1160 /// instruction. INLINEASM instructions allow more tied defs.
1167   assert(!DefMO.isTied() && "Def is already tied to another use");  in tieOperands()
1168   assert(!UseMO.isTied() && "Use is already tied to another def");  in tieOperands()
1173     // Inline asm can use the group descriptors to find tied operands,  in tieOperands()
1174     // statepoint tied operands are trivial to match (1-1 reg def with reg use),  in tieOperands()
1175     // but on normal instruction, the tied def must be within the first TiedMax  in tieOperands()
1186 /// Given the index of a tied register operand, find the operand it is tied to.
1187 /// Defs are tied to uses and vice versa. Returns the index of the tied operand
1191   assert(MO.isTied() && "Operand isn't tied");  in findTiedOperandIdx()
1199     // Normal tied defs must be in the 0..TiedMax-1 range.  in findTiedOperandIdx()
1202     // MO is a def. Search for the tied use.  in findTiedOperandIdx()
1208     llvm_unreachable("Can't find tied use");  in findTiedOperandIdx()
1216     assert(CurUseIdx != -1U && "only gc pointer statepoint operands can be tied");  in findTiedOperandIdx()
1227     llvm_unreachable("Can't find tied use");  in findTiedOperandIdx()
1238     assert(FlagMO.isImm() && "Invalid tied operand on inline asm");  in findTiedOperandIdx()
1249     // Operands in this group are tied to operands in TiedGroup which must be  in findTiedOperandIdx()
1253     // OpIdx is a use tied to TiedGroup.  in findTiedOperandIdx()
1257     // OpIdx is a def tied to this use group.  in findTiedOperandIdx()
1261   llvm_unreachable("Invalid tied operand on inline asm");  in findTiedOperandIdx()
1588       // Ignore the defined registers as MCID marks only the uses as tied.  in hasComplexRegisterTies()