From: Chris Lattner Date: Wed, 17 Aug 2005 00:34:06 +0000 (+0000) Subject: add a new TargetConstant node X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=37bfbb47de5381704471af6178bfbba29260297c;p=oota-llvm.git add a new TargetConstant node git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22813 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index dae19b9768f..ef7ffb24601 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -218,6 +218,10 @@ void SelectionDAG::RemoveNodeFromCSEMaps(SDNode *N) { Constants.erase(std::make_pair(cast(N)->getValue(), N->getValueType(0))); break; + case ISD::TargetConstant: + TargetConstants.erase(std::make_pair(cast(N)->getValue(), + N->getValueType(0))); + break; case ISD::ConstantFP: { union { double DV; @@ -309,7 +313,20 @@ SDOperand SelectionDAG::getConstant(uint64_t Val, MVT::ValueType VT) { SDNode *&N = Constants[std::make_pair(Val, VT)]; if (N) return SDOperand(N, 0); - N = new ConstantSDNode(Val, VT); + N = new ConstantSDNode(false, Val, VT); + AllNodes.push_back(N); + return SDOperand(N, 0); +} + +SDOperand SelectionDAG::getTargetConstant(uint64_t Val, MVT::ValueType VT) { + assert(MVT::isInteger(VT) && "Cannot create FP integer constant!"); + // Mask out any bits that are not valid for this constant. + if (VT != MVT::i64) + Val &= ((uint64_t)1 << MVT::getSizeInBits(VT)) - 1; + + SDNode *&N = TargetConstants[std::make_pair(Val, VT)]; + if (N) return SDOperand(N, 0); + N = new ConstantSDNode(true, Val, VT); AllNodes.push_back(N); return SDOperand(N, 0); } @@ -1792,6 +1809,7 @@ const char *SDNode::getOperationName(const SelectionDAG *G) const { case ISD::EntryToken: return "EntryToken"; case ISD::TokenFactor: return "TokenFactor"; case ISD::Constant: return "Constant"; + case ISD::TargetConstant: return "TargetConstant"; case ISD::ConstantFP: return "ConstantFP"; case ISD::GlobalAddress: return "GlobalAddress"; case ISD::FrameIndex: return "FrameIndex";