Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37501 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 5 deletions

diff --git a/lib/Transforms/IPO/LoopExtractor.cpp b/lib/Transforms/IPO/LoopExtractor.cpp
index 768afca5e6..7b14ce04de 100644
--- a/lib/Transforms/IPO/LoopExtractor.cpp
+++ b/lib/Transforms/IPO/LoopExtractor.cpp
@@ -45,7 +45,6 @@ namespace {
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addRequiredID(BreakCriticalEdgesID);
       AU.addRequiredID(LoopSimplifyID);
-      AU.addRequired<ETForest>();
       AU.addRequired<DominatorTree>();
       AU.addRequired<LoopInfo>();
     }
@@ -78,7 +77,6 @@ bool LoopExtractor::runOnFunction(Function &F) {
   if (LI.begin() == LI.end())
     return false;
 
-  ETForest &EF = getAnalysis<ETForest>();
   DominatorTree &DT = getAnalysis<DominatorTree>();
 
   // If there is more than one top-level loop in this function, extract all of
@@ -88,7 +86,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
     for (LoopInfo::iterator i = LI.begin(), e = LI.end(); i != e; ++i) {
       if (NumLoops == 0) return Changed;
       --NumLoops;
-      Changed |= ExtractLoop(EF, DT, *i) != 0;
+      Changed |= ExtractLoop(DT, *i) != 0;
       ++NumExtracted;
     }
   } else {
@@ -118,7 +116,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
     if (ShouldExtractLoop) {
       if (NumLoops == 0) return Changed;
       --NumLoops;
-      Changed |= ExtractLoop(EF, DT, TLL) != 0;
+      Changed |= ExtractLoop(DT, TLL) != 0;
       ++NumExtracted;
     } else {
       // Okay, this function is a minimal container around the specified loop.
@@ -128,7 +126,7 @@ bool LoopExtractor::runOnFunction(Function &F) {
       for (Loop::iterator i = TLL->begin(), e = TLL->end(); i != e; ++i) {
         if (NumLoops == 0) return Changed;
         --NumLoops;
-        Changed |= ExtractLoop(EF, DT, *i) != 0;
+        Changed |= ExtractLoop(DT, *i) != 0;
         ++NumExtracted;
       }
     }