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remove postdom frontiers, because it is dead. Forward dom frontiers are

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still used by RegionInfo :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128943 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2011-04-05 21:57:17 +00:00
parent c631931f87
commit 1a8b9dd7fb
9 changed files with 3 additions and 904 deletions
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33
include/llvm/Analysis/PostDominators.h
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@@ -14,7 +14,7 @@
#ifndef LLVM_ANALYSIS_POST_DOMINATORS_H
#define LLVM_ANALYSIS_POST_DOMINATORS_H
#include "llvm/Analysis/DominanceFrontier.h"
#include "llvm/Analysis/Dominators.h"
namespace llvm {
@@ -101,37 +101,6 @@ template <> struct GraphTraits<PostDominatorTree*>
}
};
/// PostDominanceFrontier Class - Concrete subclass of DominanceFrontier that is
/// used to compute the a post-dominance frontier.
///
struct PostDominanceFrontier : public DominanceFrontierBase {
static char ID;
PostDominanceFrontier()
: DominanceFrontierBase(ID, true) {
initializePostDominanceFrontierPass(*PassRegistry::getPassRegistry());
}
virtual bool runOnFunction(Function &) {
Frontiers.clear();
PostDominatorTree &DT = getAnalysis<PostDominatorTree>();
Roots = DT.getRoots();
if (const DomTreeNode *Root = DT.getRootNode())
calculate(DT, Root);
return false;
}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequired<PostDominatorTree>();
}
private:
const DomSetType &calculate(const PostDominatorTree &DT,
const DomTreeNode *Node);
};
FunctionPass* createPostDomFrontier();
} // End llvm namespace
#endif

3
include/llvm/Analysis/RegionInfo.h
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@@ -28,9 +28,10 @@
#define LLVM_ANALYSIS_REGION_INFO_H
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/DominanceFrontier.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/Support/Allocator.h"
#include <map>
namespace llvm {