Remove the FlaggedNodes member from SUnit. Instead of requiring each SUnit
to carry a SmallVector of flagged nodes, just calculate the flagged nodes
dynamically when they are needed.
The local-liveness change is due to a trivial scheduling change where
the scheduler arbitrary decision differently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59273 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
index 51a784e..ae20774 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
@@ -221,7 +221,7 @@
/// CopyAndMoveSuccessors - Clone the specified node and move its scheduled
/// successors to the newly created node.
SUnit *ScheduleDAGFast::CopyAndMoveSuccessors(SUnit *SU) {
- if (SU->FlaggedNodes.size())
+ if (SU->getNode()->getFlaggedNode())
return NULL;
SDNode *N = SU->getNode();
@@ -485,9 +485,8 @@
}
}
- for (unsigned i = 0, e = SU->FlaggedNodes.size()+1; i != e; ++i) {
- SDNode *Node = (i == 0) ? SU->getNode() : SU->FlaggedNodes[i-1];
- if (!Node || !Node->isMachineOpcode())
+ for (SDNode *Node = SU->getNode(); Node; Node = Node->getFlaggedNode()) {
+ if (!Node->isMachineOpcode())
continue;
const TargetInstrDesc &TID = TII->get(Node->getMachineOpcode());
if (!TID.ImplicitDefs)