From 65a5b8cb3b32db7681afca62d3e9d92941dbf979 Mon Sep 17 00:00:00 2001 From: David Greene Date: Fri, 29 Jul 2011 19:07:19 +0000 Subject: [PATCH] [AVX] Make BinOpInit Unique Make sure BinOpInits are unique and created only once. This will be important for AVX/SIMD as many operators will be used to generate patterns and other relevant data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136495 91177308-0d34-0410-b5e6-96231b3b80d8 --- utils/TableGen/Record.cpp | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp index 8fc0c18cd4b..56a46e195b4 100644 --- a/utils/TableGen/Record.cpp +++ b/utils/TableGen/Record.cpp @@ -860,7 +860,20 @@ std::string UnOpInit::getAsString() const { const BinOpInit *BinOpInit::get(BinaryOp opc, const Init *lhs, const Init *rhs, RecTy *Type) { - return new BinOpInit(opc, lhs, rhs, Type); + typedef std::pair< + std::pair, const Init *>, + RecTy * + > Key; + + typedef DenseMap Pool; + static Pool ThePool; + + Key TheKey(std::make_pair(std::make_pair(std::make_pair(opc, lhs), rhs), + Type)); + + BinOpInit *&I = ThePool[TheKey]; + if (!I) I = new BinOpInit(opc, lhs, rhs, Type); + return I; } const Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { -- 2.34.1