[llvm-commits] [llvm] r126826 - /llvm/trunk/lib/Transforms/Scalar/CodeGenPrepare.cpp

[Cameron Zwarich]

Author: zwarich
Date: Tue Mar  1 21:48:29 2011
New Revision: 126826

URL: http://llvm.org/viewvc/llvm-project?rev=126826&view=rev
Log:
Remove some more unused code that I missed.

Modified:
    llvm/trunk/lib/Transforms/Scalar/CodeGenPrepare.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/CodeGenPrepare.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/CodeGenPrepare.cpp?rev=126826&r1=126825&r2=126826&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/CodeGenPrepare.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/CodeGenPrepare.cpp Tue Mar  1 21:48:29 2011
@@ -71,10 +71,6 @@
     /// update it.
     BasicBlock::iterator CurInstIterator;
 
-    /// BackEdges - Keep a set of all the loop back edges.
-    ///
-    SmallSet<std::pair<const BasicBlock*, const BasicBlock*>, 8> BackEdges;
-
     // Keeps track of non-local addresses that have been sunk into a block. This
     // allows us to avoid inserting duplicate code for blocks with multiple
     // load/stores of the same address.
@@ -93,10 +89,6 @@
       AU.addPreserved<ProfileInfo>();
     }
 
-    virtual void releaseMemory() {
-      BackEdges.clear();
-    }
-
   private:
     bool EliminateMostlyEmptyBlocks(Function &F);
     bool CanMergeBlocks(const BasicBlock *BB, const BasicBlock *DestBB) const;
@@ -108,7 +100,6 @@
     bool OptimizeCallInst(CallInst *CI);
     bool MoveExtToFormExtLoad(Instruction *I);
     bool OptimizeExtUses(Instruction *I);
-    void findLoopBackEdges(const Function &F);
   };
 }
 
@@ -120,16 +111,6 @@
   return new CodeGenPrepare(TLI);
 }
 
-/// findLoopBackEdges - Do a DFS walk to find loop back edges.
-///
-void CodeGenPrepare::findLoopBackEdges(const Function &F) {
-  SmallVector<std::pair<const BasicBlock*,const BasicBlock*>, 32> Edges;
-  FindFunctionBackedges(F, Edges);
-  
-  BackEdges.insert(Edges.begin(), Edges.end());
-}
-
-
 bool CodeGenPrepare::runOnFunction(Function &F) {
   bool EverMadeChange = false;