Experimental post-pass scheduling support. Post-pass scheduling

is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59676 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
index 0af03580f6..8f3198e365 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
@@ -12,7 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #define DEBUG_TYPE "pre-RA-sched"
-#include "llvm/CodeGen/ScheduleDAG.h"
+#include "llvm/CodeGen/ScheduleDAGSDNodes.h"
 #include "llvm/CodeGen/SchedulerRegistry.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetData.h"
@@ -58,7 +58,7 @@ namespace {
 //===----------------------------------------------------------------------===//
 /// ScheduleDAGFast - The actual "fast" list scheduler implementation.
 ///
-class VISIBILITY_HIDDEN ScheduleDAGFast : public ScheduleDAG {
+class VISIBILITY_HIDDEN ScheduleDAGFast : public ScheduleDAGSDNodes {
 private:
   /// AvailableQueue - The priority queue to use for the available SUnits.
   FastPriorityQueue AvailableQueue;
@@ -73,7 +73,7 @@ private:
 public:
   ScheduleDAGFast(SelectionDAG *dag, MachineBasicBlock *bb,
                   const TargetMachine &tm)
-    : ScheduleDAG(dag, bb, tm) {}
+    : ScheduleDAGSDNodes(dag, bb, tm) {}
 
   void Schedule();