================
@@ -1221,15 +1225,23 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool
IsCloned,
}
}
- if (SDNode *GluedNode = Node->getGluedNode()) {
- // FIXME: Possibly iterate over multiple glue nodes?
- if (GluedNode->getOpcode() ==
- ~(unsigned)TargetOpcode::CONVERGENCECTRL_GLUE) {
- Register VReg = getVR(GluedNode->getOperand(0), VRBaseMap);
- MachineOperand MO = MachineOperand::CreateReg(VReg, /*isDef=*/false,
- /*isImp=*/true);
- MIB->addOperand(MO);
- }
+ unsigned Op = Node->getNumOperands();
+ if (Op != 0 && Node->getOperand(Op - 1)->getOpcode() ==
+ ~(unsigned)TargetOpcode::CONVERGENCECTRL_GLUE) {
+ Register VReg = getVR(Node->getOperand(Op - 1)->getOperand(0), VRBaseMap);
+ MachineOperand MO = MachineOperand::CreateReg(VReg, /*isDef=*/false,
+ /*isImp=*/true);
+ MIB->addOperand(MO);
+ Op--;
+ }
+
+ if (Op != 0 &&
----------------
pcc wrote:
That should be possible. We handle it by decrementing `Op` in the code that
handles `CONVERGENCECTRL_GLUE`. This means that `DEACTIVATION_SYMBOL` and
`CONVERGENCECTRL_GLUE` have to appear in that order. The function
`SelectionDAGBuilder::getTargetIntrinsicOperands` takes care of that.
https://github.com/llvm/llvm-project/pull/133536
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