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

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speeding earlycse up by 6%.

llvm-svn: 122733
This commit is contained in:
Chris Lattner 2011-01-03 03:53:50 +00:00
parent d19ae32f2f
commit e44a99ac89
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
/// incremented after every possibly writing memory operation, which ensures
/// 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;
/// AvailableCalls - This scoped hash table contains the current values