Move a few containers out of ScheduleDAGInstrs::BuildSchedGraph
and into the ScheduleDAGInstrs class, so that they don't get
destructed and re-constructed for each block. This fixes a
compile-time hot spot in the post-pass scheduler.
To help facilitate this, tidy and do some minor reorganization
in the scheduler constructor functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62275 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
index c755086..468fd8d 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
@@ -22,9 +22,8 @@
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
-ScheduleDAGSDNodes::ScheduleDAGSDNodes(SelectionDAG *dag, MachineBasicBlock *bb,
- const TargetMachine &tm)
- : ScheduleDAG(dag, bb, tm) {
+ScheduleDAGSDNodes::ScheduleDAGSDNodes(MachineFunction &mf)
+ : ScheduleDAG(mf) {
}
SUnit *ScheduleDAGSDNodes::Clone(SUnit *Old) {