[ScheduleDAG] Move `Topo` and `addEdge` to base class.
Some DAG mutations can only be applied to `ScheduleDAGMI`, and have to
internally cast a `ScheduleDAGInstrs` to `ScheduleDAGMI`.
There is nothing actually specific to `ScheduleDAGMI` in `Topo`.
llvm-svn: 357239
diff --git a/llvm/lib/CodeGen/MacroFusion.cpp b/llvm/lib/CodeGen/MacroFusion.cpp
index c7b8bf9..2db1e86 100644
--- a/llvm/lib/CodeGen/MacroFusion.cpp
+++ b/llvm/lib/CodeGen/MacroFusion.cpp
@@ -36,7 +36,7 @@
return Dep.getKind() == SDep::Anti || Dep.getKind() == SDep::Output;
}
-static bool fuseInstructionPair(ScheduleDAGMI &DAG, SUnit &FirstSU,
+static bool fuseInstructionPair(ScheduleDAGInstrs &DAG, SUnit &FirstSU,
SUnit &SecondSU) {
// Check that neither instr is already paired with another along the edge
// between them.
@@ -48,7 +48,7 @@
if (SI.isCluster())
return false;
// Though the reachability checks above could be made more generic,
- // perhaps as part of ScheduleDAGMI::addEdge(), since such edges are valid,
+ // perhaps as part of ScheduleDAGInstrs::addEdge(), since such edges are valid,
// the extra computation cost makes it less interesting in general cases.
// Create a single weak edge between the adjacent instrs. The only effect is
@@ -117,7 +117,7 @@
class MacroFusion : public ScheduleDAGMutation {
ShouldSchedulePredTy shouldScheduleAdjacent;
bool FuseBlock;
- bool scheduleAdjacentImpl(ScheduleDAGMI &DAG, SUnit &AnchorSU);
+ bool scheduleAdjacentImpl(ScheduleDAGInstrs &DAG, SUnit &AnchorSU);
public:
MacroFusion(ShouldSchedulePredTy shouldScheduleAdjacent, bool FuseBlock)
@@ -128,9 +128,7 @@
} // end anonymous namespace
-void MacroFusion::apply(ScheduleDAGInstrs *DAGInstrs) {
- ScheduleDAGMI *DAG = static_cast<ScheduleDAGMI*>(DAGInstrs);
-
+void MacroFusion::apply(ScheduleDAGInstrs *DAG) {
if (FuseBlock)
// For each of the SUnits in the scheduling block, try to fuse the instr in
// it with one in its predecessors.
@@ -144,7 +142,7 @@
/// Implement the fusion of instr pairs in the scheduling DAG,
/// anchored at the instr in AnchorSU..
-bool MacroFusion::scheduleAdjacentImpl(ScheduleDAGMI &DAG, SUnit &AnchorSU) {
+bool MacroFusion::scheduleAdjacentImpl(ScheduleDAGInstrs &DAG, SUnit &AnchorSU) {
const MachineInstr &AnchorMI = *AnchorSU.getInstr();
const TargetInstrInfo &TII = *DAG.TII;
const TargetSubtargetInfo &ST = DAG.MF.getSubtarget();