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Change the Dominators recalculate() function to only rely on GraphTraits

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This is a patch by Guoping Long!

As part of utilizing LLVM Dominator computation in Clang, made two changes to LLVM dominators tree implementation:

 - (1) Change the recalculate() template function to only rely on GraphTraits.
 - (2) Add a size() method to GraphTraits template class to query the number of nodes in the graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145837 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anna Zaks
2011-12-05 19:17:04 +00:00
parent fef3f9aed3
commit e15402f92b
5 changed files with 20 additions and 8 deletions
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2
include/llvm/Support/CFG.h
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@@ -314,6 +314,7 @@ template <> struct GraphTraits<Function*> : public GraphTraits<BasicBlock*> {
typedef Function::iterator nodes_iterator;
static nodes_iterator nodes_begin(Function *F) { return F->begin(); }
static nodes_iterator nodes_end (Function *F) { return F->end(); }
static unsigned size (Function *F) { return F->size(); }
};
template <> struct GraphTraits<const Function*> :
public GraphTraits<const BasicBlock*> {
@@ -323,6 +324,7 @@ template <> struct GraphTraits<const Function*> :
typedef Function::const_iterator nodes_iterator;
static nodes_iterator nodes_begin(const Function *F) { return F->begin(); }
static nodes_iterator nodes_end (const Function *F) { return F->end(); }
static unsigned size (const Function *F) { return F->size(); }
};