1 files changed, 0 insertions, 116 deletions
diff --git a/lib/CodeGen/MachineLoopRanges.cpp b/lib/CodeGen/MachineLoopRanges.cpp
index 17fe67f650..e69de29bb2 100644
--- a/lib/CodeGen/MachineLoopRanges.cpp
+++ b/lib/CodeGen/MachineLoopRanges.cpp
@@ -1,116 +0,0 @@
-//===- MachineLoopRanges.cpp - Ranges of machine loops --------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file provides the implementation of the MachineLoopRanges analysis.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/MachineLoopRanges.h"
-#include "llvm/CodeGen/MachineLoopInfo.h"
-#include "llvm/CodeGen/Passes.h"
-
-using namespace llvm;
-
-char MachineLoopRanges::ID = 0;
-INITIALIZE_PASS_BEGIN(MachineLoopRanges, "machine-loop-ranges",
-                "Machine Loop Ranges", true, true)
-INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
-INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
-INITIALIZE_PASS_END(MachineLoopRanges, "machine-loop-ranges",
-                "Machine Loop Ranges", true, true)
-
-char &llvm::MachineLoopRangesID = MachineLoopRanges::ID;
-
-void MachineLoopRanges::getAnalysisUsage(AnalysisUsage &AU) const {
-  AU.setPreservesAll();
-  AU.addRequiredTransitive<SlotIndexes>();
-  AU.addRequiredTransitive<MachineLoopInfo>();
-  MachineFunctionPass::getAnalysisUsage(AU);
-}
-
-/// runOnMachineFunction - Don't do much, loop ranges are computed on demand.
-bool MachineLoopRanges::runOnMachineFunction(MachineFunction &) {
-  releaseMemory();
-  Indexes = &getAnalysis<SlotIndexes>();
-  return false;
-}
-
-void MachineLoopRanges::releaseMemory() {
-  DeleteContainerSeconds(Cache);
-  Cache.clear();
-}
-
-MachineLoopRange *MachineLoopRanges::getLoopRange(const MachineLoop *Loop) {
-  MachineLoopRange *&Range = Cache[Loop];
-  if (!Range)
-    Range = new MachineLoopRange(Loop, Allocator, *Indexes);
-  return Range;
-}
-
-/// Create a MachineLoopRange, only accessible to MachineLoopRanges.
-MachineLoopRange::MachineLoopRange(const MachineLoop *loop,
-                                   MachineLoopRange::Allocator &alloc,
-                                   SlotIndexes &Indexes)
-  : Loop(loop), Intervals(alloc), Area(0) {
-  // Compute loop coverage.
-  for (MachineLoop::block_iterator I = Loop->block_begin(),
-         E = Loop->block_end(); I != E; ++I) {
-    const std::pair<SlotIndex, SlotIndex> &Range = Indexes.getMBBRange(*I);
-    Intervals.insert(Range.first, Range.second, 1u);
-    Area += Range.first.distance(Range.second);
-  }
-}
-
-/// overlaps - Return true if this loop overlaps the given range of machine
-/// instructions.
-bool MachineLoopRange::overlaps(SlotIndex Start, SlotIndex Stop) {
-  Map::const_iterator I = Intervals.find(Start);
-  return I.valid() && Stop > I.start();
-}
-
-unsigned MachineLoopRange::getNumber() const {
-  return Loop->getHeader()->getNumber();
-}
-
-/// byNumber - Comparator for array_pod_sort that sorts a list of
-/// MachineLoopRange pointers by number.
-int MachineLoopRange::byNumber(const void *pa, const void *pb) {
-  const MachineLoopRange *a = *static_cast<MachineLoopRange *const *>(pa);
-  const MachineLoopRange *b = *static_cast<MachineLoopRange *const *>(pb);
-  unsigned na = a->getNumber();
-  unsigned nb = b->getNumber();
-  if (na < nb)
-    return -1;
-  if (na > nb)
-    return 1;
-  return 0;
-}
-
-/// byAreaDesc - Comparator for array_pod_sort that sorts a list of
-/// MachineLoopRange pointers by:
-/// 1. Descending area.
-/// 2. Ascending number.
-int MachineLoopRange::byAreaDesc(const void *pa, const void *pb) {
-  const MachineLoopRange *a = *static_cast<MachineLoopRange *const *>(pa);
-  const MachineLoopRange *b = *static_cast<MachineLoopRange *const *>(pb);
-  if (a->getArea() != b->getArea())
-    return a->getArea() > b->getArea() ? -1 : 1;
-  return byNumber(pa, pb);
-}
-
-void MachineLoopRange::print(raw_ostream &OS) const {
-  OS << "Loop#" << getNumber() << " =";
-  for (Map::const_iterator I = Intervals.begin(); I.valid(); ++I)
-    OS << " [" << I.start() << ';' << I.stop() << ')';
-}
-
-raw_ostream &llvm::operator<<(raw_ostream &OS, const MachineLoopRange &MLR) {
-  MLR.print(OS);
-  return OS;
-}