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Preserve ProfileInfo.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81360 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andreas Neustifter
2009-09-09 17:53:39 +00:00
parent 07abe17bd2
commit ff5dfdff56
2 changed files with 16 additions and 1 deletions
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7
lib/Transforms/Utils/BreakCriticalEdges.cpp
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@ -21,6 +21,7 @@
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/ProfileInfo.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Type.h"
@ -44,6 +45,7 @@ namespace {
AU.addPreserved<DominatorTree>();
AU.addPreserved<DominanceFrontier>();
AU.addPreserved<LoopInfo>();
AU.addPreserved<ProfileInfo>();
// No loop canonicalization guarantees are broken by this pass.
AU.addPreservedID(LoopSimplifyID);
@ -338,5 +340,10 @@ BasicBlock *llvm::SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum,
}
}
// Update ProfileInfo if it is around.
if (ProfileInfo *PI = P->getAnalysisIfAvailable<ProfileInfo>()) {
PI->splitEdge(TIBB,DestBB,NewBB,MergeIdenticalEdges);
}
return NewBB;
}