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| author | David Greene <greened@obbligato.org> | 2011-07-29 19:07:21 +0000 |
|---|---|---|
| committer | David Greene <greened@obbligato.org> | 2011-07-29 19:07:21 +0000 |
| commit | e0be0e361a8306a7106ccab27dcf0140a748bfbc (patch) | |
| tree | 10391d7f532a55705296215398c587b2b8899da4 /utils/TableGen/Record.cpp | |
| parent | b76a1e6993fa4020a6c1ef552fdf4f564b706fac (diff) | |
[AVX] Make VarInit Unique
Make sure VarInits are unique and created only once.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136497 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/Record.cpp')
| -rw-r--r-- | utils/TableGen/Record.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp index a6b5c4b884..68f9f2a247 100644 --- a/utils/TableGen/Record.cpp +++ b/utils/TableGen/Record.cpp @@ -1294,7 +1294,15 @@ TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) const { const VarInit *VarInit::get(const std::string &VN, RecTy *T) { - return new VarInit(VN, T); + typedef std::pair<RecTy *, TableGenStringKey> Key; + typedef DenseMap<Key, VarInit *> Pool; + static Pool ThePool; + + Key TheKey(std::make_pair(T, VN)); + + VarInit *&I = ThePool[TheKey]; + if (!I) I = new VarInit(VN, T); + return I; } const Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV, |