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blockfreq: Really fix r206548 (and r206549)

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Turns out this code is dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206554 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2014-04-18 02:10:09 +00:00
parent b08b9d7c09
commit a9da909e57
1 changed files with 0 additions and 32 deletions
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32
lib/Analysis/BlockFrequencyInfoImpl.cpp
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@ -369,38 +369,6 @@ typedef BlockFrequencyInfoImplBase::PackagedLoopData PackagedLoopData;
typedef BlockFrequencyInfoImplBase::Weight Weight; typedef BlockFrequencyInfoImplBase::Weight Weight;
typedef BlockFrequencyInfoImplBase::FrequencyData FrequencyData; typedef BlockFrequencyInfoImplBase::FrequencyData FrequencyData;
/// \brief Stack entry describing a loop.
struct LoopStackEntry {
BlockNode LoopHead;
BlockNode LatestBackedge;
};
/// \brief Stack describing currently open loops.
struct LoopStack {
std::vector<LoopStackEntry> OpenLoops;
void push(const BlockNode &LoopHead, const BlockNode &LatestBackedge) {
assert(LoopHead.isValid());
assert(LatestBackedge.isValid());
OpenLoops.emplace_back(LoopHead, LatestBackedge);
}
void pop(const BlockNode &FinishedNode) {
while (!empty() && top().LatestBackedge <= FinishedNode)
OpenLoops.pop_back();
}
bool empty() const { return OpenLoops.empty(); }
const LoopStackEntry &top() const {
assert(!OpenLoops.empty());
return OpenLoops.back();
}
void adjustAfterFinishing(const BlockNode &Current,
const BlockNode &LatestBackedge) {
pop(Current);
if (LatestBackedge.isValid() && LatestBackedge > Current)
push(Current, LatestBackedge);
}
};
/// \brief Dithering mass distributer. /// \brief Dithering mass distributer.
/// ///
/// This class splits up a single mass into portions by weight, dithering to /// This class splits up a single mass into portions by weight, dithering to