Remove the very substantial, largely unmaintained legacy PGO

[oota-llvm.git] / lib / Transforms / Utils / BreakCriticalEdges.cpp

diff --git a/lib/Transforms/Utils/BreakCriticalEdges.cpp b/lib/Transforms/Utils/BreakCriticalEdges.cpp
index 8f3ff96d7e7323e58615476cfcbd67bcf9a115c1..0e7f7f7844015d6dc4e06f1a6ccba2a34ec3ceb1 100644 (file)
--- a/lib/Transforms/Utils/BreakCriticalEdges.cpp
+++ b/lib/Transforms/Utils/BreakCriticalEdges.cpp
@@ -22,7 +22,6 @@
 #include "llvm/Analysis/CFG.h"
 #include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopInfo.h"
-#include "llvm/Analysis/ProfileInfo.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/Type.h"
@@ -45,7 +44,6 @@ namespace {
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addPreserved<DominatorTree>();
       AU.addPreserved<LoopInfo>();
-      AU.addPreserved<ProfileInfo>();
 
       // No loop canonicalization guarantees are broken by this pass.
       AU.addPreservedID(LoopSimplifyID);
@@ -213,10 +211,9 @@ BasicBlock *llvm::SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum,
 
   DominatorTree *DT = P->getAnalysisIfAvailable<DominatorTree>();
   LoopInfo *LI = P->getAnalysisIfAvailable<LoopInfo>();
-  ProfileInfo *PI = P->getAnalysisIfAvailable<ProfileInfo>();
 
   // If we have nothing to update, just return.
-  if (DT == 0 && LI == 0 && PI == 0)
+  if (DT == 0 && LI == 0)
     return NewBB;
 
   // Now update analysis information.  Since the only predecessor of NewBB is
@@ -369,9 +366,5 @@ BasicBlock *llvm::SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum,
     }
   }
 
-  // Update ProfileInfo if it is around.
-  if (PI)
-    PI->splitEdge(TIBB, DestBB, NewBB, MergeIdenticalEdges);
-
   return NewBB;
 }