From 2fd36775a3ec4f1331a7272d53e829b7cd91fd88 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Thu, 11 Aug 2011 20:41:41 +0000
Subject: [PATCH] Remove some dead code.

The InterferenceResult iterator turned out to be less important than we
thought it would be.  LiveIntervalUnion clients want higher level
information, like the list of interfering virtual registers.

llvm-svn: 137346
---
 lib/CodeGen/LiveIntervalUnion.cpp | 19 -------------------
 lib/CodeGen/LiveIntervalUnion.h   | 20 --------------------
 2 files changed, 39 deletions(-)

diff --git a/lib/CodeGen/LiveIntervalUnion.cpp b/lib/CodeGen/LiveIntervalUnion.cpp
index 70003e7cc86..b30e169ee0f 100644
--- a/lib/CodeGen/LiveIntervalUnion.cpp
+++ b/lib/CodeGen/LiveIntervalUnion.cpp
@@ -91,25 +91,6 @@ LiveIntervalUnion::print(raw_ostream &OS, const TargetRegisterInfo *TRI) const {
   OS << '\n';
 }
 
-void LiveIntervalUnion::InterferenceResult::print(raw_ostream &OS,
-                                          const TargetRegisterInfo *TRI) const {
-  OS << '[' << start() << ';' << stop() << "):"
-     << PrintReg(interference()->reg, TRI);
-}
-
-void LiveIntervalUnion::Query::print(raw_ostream &OS,
-                                     const TargetRegisterInfo *TRI) {
-  OS << "Interferences with ";
-  LiveUnion->print(OS, TRI);
-  InterferenceResult IR = firstInterference();
-  while (isInterference(IR)) {
-    OS << "  ";
-    IR.print(OS, TRI);
-    OS << '\n';
-    nextInterference(IR);
-  }
-}
-
 #ifndef NDEBUG
 // Verify the live intervals in this union and add them to the visited set.
 void LiveIntervalUnion::verify(LiveVirtRegBitSet& VisitedVRegs) {
diff --git a/lib/CodeGen/LiveIntervalUnion.h b/lib/CodeGen/LiveIntervalUnion.h
index 5e78d5e8502..a024bde5815 100644
--- a/lib/CodeGen/LiveIntervalUnion.h
+++ b/lib/CodeGen/LiveIntervalUnion.h
@@ -124,16 +124,6 @@ public:
     // Public default ctor.
     InterferenceResult(): VirtRegI(), LiveUnionI() {}
 
-    /// start - Return the start of the current overlap.
-    SlotIndex start() const {
-      return std::max(VirtRegI->start, LiveUnionI.start());
-    }
-
-    /// stop - Return the end of the current overlap.
-    SlotIndex stop() const {
-      return std::min(VirtRegI->end, LiveUnionI.stop());
-    }
-
     /// interference - Return the register that is interfering here.
     LiveInterval *interference() const { return LiveUnionI.value(); }
 
@@ -145,15 +135,6 @@ public:
 
     // Access the LiveUnion segment.
     const SegmentIter &liveUnionPos() const { return LiveUnionI; }
-
-    bool operator==(const InterferenceResult &IR) const {
-      return VirtRegI == IR.VirtRegI && LiveUnionI == IR.LiveUnionI;
-    }
-    bool operator!=(const InterferenceResult &IR) const {
-      return !operator==(IR);
-    }
-
-    void print(raw_ostream &OS, const TargetRegisterInfo *TRI) const;
   };
 
   /// Query interferences between a single live virtual register and a live
@@ -249,7 +230,6 @@ public:
     /// Loop.
     bool checkLoopInterference(MachineLoopRange*);
 
-    void print(raw_ostream &OS, const TargetRegisterInfo *TRI);
   private:
     Query(const Query&);          // DO NOT IMPLEMENT
     void operator=(const Query&); // DO NOT IMPLEMENT