misched: rename ScheduleDAGILP to ScheduleDFS to prepare for other heuristics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168772 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/ScheduleDAGILP.h b/include/llvm/CodeGen/ScheduleDAGILP.h
deleted file mode 100644 (file)
index 1aa4058..0000000
--- a/include/llvm/CodeGen/ScheduleDAGILP.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//===- ScheduleDAGILP.h - ILP metric for ScheduleDAGInstrs ------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Definition of an ILP metric for machine level instruction scheduling.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_SCHEDULEDAGILP_H
-#define LLVM_CODEGEN_SCHEDULEDAGILP_H
-
-#include "llvm/Support/DataTypes.h"
-#include <vector>
-
-namespace llvm {
-
-class raw_ostream;
-class ScheduleDAGInstrs;
-class SUnit;
-
-/// \brief Represent the ILP of the subDAG rooted at a DAG node.
-struct ILPValue {
-  unsigned InstrCount;
-  unsigned Cycles;
-
-  ILPValue(): InstrCount(0), Cycles(0) {}
-
-  ILPValue(unsigned count, unsigned cycles):
-    InstrCount(count), Cycles(cycles) {}
-
-  bool isValid() const { return Cycles > 0; }
-
-  // Order by the ILP metric's value.
-  bool operator<(ILPValue RHS) const {
-    return (uint64_t)InstrCount * RHS.Cycles
-      < (uint64_t)Cycles * RHS.InstrCount;
-  }
-  bool operator>(ILPValue RHS) const {
-    return RHS < *this;
-  }
-  bool operator<=(ILPValue RHS) const {
-    return (uint64_t)InstrCount * RHS.Cycles
-      <= (uint64_t)Cycles * RHS.InstrCount;
-  }
-  bool operator>=(ILPValue RHS) const {
-    return RHS <= *this;
-  }
-
-#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
-  void print(raw_ostream &OS) const;
-
-  void dump() const;
-#endif
-};
-
-/// \brief Compute the values of each DAG node for an ILP metric.
-///
-/// This metric assumes that the DAG is a forest of trees with roots at the
-/// bottom of the schedule.
-class ScheduleDAGILP {
-  bool IsBottomUp;
-  std::vector<ILPValue> ILPValues;
-
-public:
-  ScheduleDAGILP(bool IsBU): IsBottomUp(IsBU) {}
-
-  /// \brief Initialize the result data with the size of the DAG.
-  void resize(unsigned NumSUnits);
-
-  /// \brief Compute the ILP metric for the subDAG at this root.
-  void computeILP(const SUnit *Root);
-
-  /// \brief Get the ILP value for a DAG node.
-  ILPValue getILP(const SUnit *SU);
-};
-
-raw_ostream &operator<<(raw_ostream &OS, const ILPValue &Val);
-
-} // namespace llvm
-
-#endif

diff --git a/include/llvm/CodeGen/ScheduleDFS.h b/include/llvm/CodeGen/ScheduleDFS.h
new file mode 100644 (file)
index 0000000..1aa4058
--- /dev/null
+++ b/include/llvm/CodeGen/ScheduleDFS.h
@@ -0,0 +1,86 @@
+//===- ScheduleDAGILP.h - ILP metric for ScheduleDAGInstrs ------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Definition of an ILP metric for machine level instruction scheduling.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_SCHEDULEDAGILP_H
+#define LLVM_CODEGEN_SCHEDULEDAGILP_H
+
+#include "llvm/Support/DataTypes.h"
+#include <vector>
+
+namespace llvm {
+
+class raw_ostream;
+class ScheduleDAGInstrs;
+class SUnit;
+
+/// \brief Represent the ILP of the subDAG rooted at a DAG node.
+struct ILPValue {
+  unsigned InstrCount;
+  unsigned Cycles;
+
+  ILPValue(): InstrCount(0), Cycles(0) {}
+
+  ILPValue(unsigned count, unsigned cycles):
+    InstrCount(count), Cycles(cycles) {}
+
+  bool isValid() const { return Cycles > 0; }
+
+  // Order by the ILP metric's value.
+  bool operator<(ILPValue RHS) const {
+    return (uint64_t)InstrCount * RHS.Cycles
+      < (uint64_t)Cycles * RHS.InstrCount;
+  }
+  bool operator>(ILPValue RHS) const {
+    return RHS < *this;
+  }
+  bool operator<=(ILPValue RHS) const {
+    return (uint64_t)InstrCount * RHS.Cycles
+      <= (uint64_t)Cycles * RHS.InstrCount;
+  }
+  bool operator>=(ILPValue RHS) const {
+    return RHS <= *this;
+  }
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+  void print(raw_ostream &OS) const;
+
+  void dump() const;
+#endif
+};
+
+/// \brief Compute the values of each DAG node for an ILP metric.
+///
+/// This metric assumes that the DAG is a forest of trees with roots at the
+/// bottom of the schedule.
+class ScheduleDAGILP {
+  bool IsBottomUp;
+  std::vector<ILPValue> ILPValues;
+
+public:
+  ScheduleDAGILP(bool IsBU): IsBottomUp(IsBU) {}
+
+  /// \brief Initialize the result data with the size of the DAG.
+  void resize(unsigned NumSUnits);
+
+  /// \brief Compute the ILP metric for the subDAG at this root.
+  void computeILP(const SUnit *Root);
+
+  /// \brief Get the ILP value for a DAG node.
+  ILPValue getILP(const SUnit *SU);
+};
+
+raw_ostream &operator<<(raw_ostream &OS, const ILPValue &Val);
+
+} // namespace llvm
+
+#endif

diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index 2fe72bb3859793a1e7d68bb20943cc7e115a1741..69e8b83b3618aff2fd8ec2e1b2eb0396d3131499 100644 (file)
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -18,7 +18,7 @@
 #include "llvm/CodeGen/MachineScheduler.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/RegisterClassInfo.h"
-#include "llvm/CodeGen/ScheduleDAGILP.h"
+#include "llvm/CodeGen/ScheduleDFS.h"
 #include "llvm/CodeGen/ScheduleHazardRecognizer.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Support/CommandLine.h"

diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp
index e46ca94647819b5725d24b6c5f362edfa7c589a9..e9eaff1b1821e87011cdfe356a9da072d449fa38 100644 (file)
--- a/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -22,7 +22,7 @@
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/PseudoSourceValue.h"
 #include "llvm/CodeGen/RegisterPressure.h"
-#include "llvm/CodeGen/ScheduleDAGILP.h"
+#include "llvm/CodeGen/ScheduleDFS.h"
 #include "llvm/CodeGen/ScheduleDAGInstrs.h"
 #include "llvm/MC/MCInstrItineraries.h"
 #include "llvm/Target/TargetMachine.h"