Add MachineInstr::tieOperands, remove setIsTied().
Manage tied operands entirely internally to MachineInstr. This makes it
possible to change the representation of tied operands, as I will do
shortly.
The constraint that tied uses and defs must be in the same order was too
restrictive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163021 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
index 5399a51..46ddab0 100644
--- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
+++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
@@ -945,12 +945,8 @@
if (InlineAsm::isUseOperandTiedToDef(Flags, DefGroup)) {
unsigned DefIdx = GroupIdx[DefGroup] + 1;
unsigned UseIdx = GroupIdx.back() + 1;
- for (unsigned j = 0; j != NumVals; ++j) {
- assert(!MI->getOperand(DefIdx + j).isTied() &&
- "Def is already tied to another use");
- MI->getOperand(DefIdx + j).setIsTied();
- MI->getOperand(UseIdx + j).setIsTied();
- }
+ for (unsigned j = 0; j != NumVals; ++j)
+ MI->tieOperands(DefIdx + j, UseIdx + j);
}
}
break;