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switch the load table to use a recycling bump pointer allocator,

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speeding earlycse up by 6%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122733 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2011-01-03 03:53:50 +00:00
parent ef87fc2e0a
commit 71230acbbe
1 changed files with 4 additions and 1 deletions
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5
lib/Transforms/Scalar/EarlyCSE.cpp
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@ -221,7 +221,10 @@ public:
/// the current generation count. The current generation count is /// the current generation count. The current generation count is
/// incremented after every possibly writing memory operation, which ensures /// incremented after every possibly writing memory operation, which ensures
/// that we only CSE loads with other loads that have no intervening store. /// that we only CSE loads with other loads that have no intervening store.
typedef ScopedHashTable<Value*, std::pair<Value*, unsigned> > LoadHTType; typedef RecyclingAllocator<BumpPtrAllocator,
ScopedHashTableVal<Value*, std::pair<Value*, unsigned> > > LoadMapAllocator;
typedef ScopedHashTable<Value*, std::pair<Value*, unsigned>,
DenseMapInfo<Value*>, LoadMapAllocator> LoadHTType;
LoadHTType *AvailableLoads; LoadHTType *AvailableLoads;
/// AvailableCalls - This scoped hash table contains the current values /// AvailableCalls - This scoped hash table contains the current values