From 84b64a3e926f5daffe9eb09207ce028e13c883c5 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Wed, 25 May 2011 21:55:40 +0000
Subject: [PATCH] Remove unused statistical counter.

llvm-svn: 132087
---
 .../CodeGen/SelectionDAG/SelectionDAGISel.cpp | 57 -------------------
 1 file changed, 57 deletions(-)

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 884bdfb156dd..771b0089fdc0 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -60,13 +60,6 @@ STATISTIC(NumFastIselBlocks, "Number of blocks selected entirely by fast isel");
 STATISTIC(NumDAGBlocks, "Number of blocks selected using DAG");
 STATISTIC(NumDAGIselRetries,"Number of times dag isel has to try another path");
 
-#ifndef NDEBUG
-STATISTIC(NumBBWithOutOfOrderLineInfo,
-          "Number of blocks with out of order line number info");
-STATISTIC(NumMBBWithOutOfOrderLineInfo,
-          "Number of machine blocks with out of order line number info");
-#endif
-
 static cl::opt<bool>
 EnableFastISelVerbose("fast-isel-verbose", cl::Hidden,
           cl::desc("Enable verbose messages in the \"fast\" "
@@ -786,48 +779,6 @@ bool SelectionDAGISel::TryToFoldFastISelLoad(const LoadInst *LI,
   return FastIS->TryToFoldLoad(User, RI.getOperandNo(), LI);
 }
 
-#ifndef NDEBUG
-/// CheckLineNumbers - Check if basic block instructions follow source order
-/// or not.
-static void CheckLineNumbers(const BasicBlock *BB) {
-  unsigned Line = 0;
-  unsigned Col = 0;
-  for (BasicBlock::const_iterator BI = BB->begin(),
-         BE = BB->end(); BI != BE; ++BI) {
-    const DebugLoc DL = BI->getDebugLoc();
-    if (DL.isUnknown()) continue;
-    unsigned L = DL.getLine();
-    unsigned C = DL.getCol();
-    if (L < Line || (L == Line && C < Col)) {
-      ++NumBBWithOutOfOrderLineInfo;
-      return;
-    }
-    Line = L;
-    Col = C;
-  }
-}
-
-/// CheckLineNumbers - Check if machine basic block instructions follow source
-/// order or not.
-static void CheckLineNumbers(const MachineBasicBlock *MBB) {
-  unsigned Line = 0;
-  unsigned Col = 0;
-  for (MachineBasicBlock::const_iterator MBI = MBB->begin(),
-         MBE = MBB->end(); MBI != MBE; ++MBI) {
-    const DebugLoc DL = MBI->getDebugLoc();
-    if (DL.isUnknown()) continue;
-    unsigned L = DL.getLine();
-    unsigned C = DL.getCol();
-    if (L < Line || (L == Line && C < Col)) {
-      ++NumMBBWithOutOfOrderLineInfo;
-      return;
-    }
-    Line = L;
-    Col = C;
-  }
-}
-#endif
-
 /// isFoldedOrDeadInstruction - Return true if the specified instruction is
 /// side-effect free and is either dead or folded into a generated instruction.
 /// Return false if it needs to be emitted.
@@ -850,9 +801,6 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
   for (ReversePostOrderTraversal<const Function*>::rpo_iterator
        I = RPOT.begin(), E = RPOT.end(); I != E; ++I) {
     const BasicBlock *LLVMBB = *I;
-#ifndef NDEBUG
-    CheckLineNumbers(LLVMBB);
-#endif
 
     if (OptLevel != CodeGenOpt::None) {
       bool AllPredsVisited = true;
@@ -1014,11 +962,6 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
   }
 
   delete FastIS;
-#ifndef NDEBUG
-  for (MachineFunction::const_iterator MBI = MF->begin(), MBE = MF->end();
-       MBI != MBE; ++MBI)
-    CheckLineNumbers(MBI);
-#endif
   SDB->clearDanglingDebugInfo();
 }