diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 0a523fa8dc..014e62ef46 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -3646,9 +3646,12 @@ SelectionDAG::getLoad(ISD::MemIndexedMode AM, DebugLoc dl, ISD::LoadExtType ExtType, EVT VT, SDValue Chain, SDValue Ptr, SDValue Offset, const Value *SV, int SVOffset, EVT EVT, - bool isVolatile, unsigned Alignment) { + bool isVolatile, unsigned Alignment, + unsigned OrigAlignment) { if (Alignment == 0) // Ensure that codegen never sees alignment 0 Alignment = getEVTAlignment(VT); + if (OrigAlignment == 0) + OrigAlignment = Alignment; if (VT == EVT) { ExtType = ISD::NON_EXTLOAD; @@ -3679,12 +3682,13 @@ SelectionDAG::getLoad(ISD::MemIndexedMode AM, DebugLoc dl, AddNodeIDNode(ID, ISD::LOAD, VTs, Ops, 3); ID.AddInteger(EVT.getRawBits()); ID.AddInteger(encodeMemSDNodeFlags(ExtType, AM, isVolatile, Alignment)); + ID.AddInteger(OrigAlignment); void *IP = 0; if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP)) return SDValue(E, 0); SDNode *N = NodeAllocator.Allocate<LoadSDNode>(); new (N) LoadSDNode(Ops, dl, VTs, AM, ExtType, EVT, SV, SVOffset, - Alignment, isVolatile); + Alignment, isVolatile, OrigAlignment); CSEMap.InsertNode(N, IP); AllNodes.push_back(N); return SDValue(N, 0); @@ -3693,10 +3697,11 @@ SelectionDAG::getLoad(ISD::MemIndexedMode AM, DebugLoc dl, SDValue SelectionDAG::getLoad(EVT VT, DebugLoc dl, SDValue Chain, SDValue Ptr, const Value *SV, int SVOffset, - bool isVolatile, unsigned Alignment) { + bool isVolatile, unsigned Alignment, + unsigned OrigAlignment) { SDValue Undef = getUNDEF(Ptr.getValueType()); return getLoad(ISD::UNINDEXED, dl, ISD::NON_EXTLOAD, VT, Chain, Ptr, Undef, - SV, SVOffset, VT, isVolatile, Alignment); + SV, SVOffset, VT, isVolatile, Alignment, OrigAlignment); } SDValue SelectionDAG::getExtLoad(ISD::LoadExtType ExtType, DebugLoc dl, EVT VT, @@ -3723,11 +3728,14 @@ SelectionDAG::getIndexedLoad(SDValue OrigLoad, DebugLoc dl, SDValue Base, SDValue SelectionDAG::getStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr, const Value *SV, int SVOffset, - bool isVolatile, unsigned Alignment) { + bool isVolatile, unsigned Alignment, + unsigned OrigAlignment) { EVT VT = Val.getValueType(); if (Alignment == 0) // Ensure that codegen never sees alignment 0 Alignment = getEVTAlignment(VT); + if (OrigAlignment == 0) + OrigAlignment = Alignment; SDVTList VTs = getVTList(MVT::Other); SDValue Undef = getUNDEF(Ptr.getValueType()); @@ -3737,12 +3745,13 @@ SDValue SelectionDAG::getStore(SDValue Chain, DebugLoc dl, SDValue Val, ID.AddInteger(VT.getRawBits()); ID.AddInteger(encodeMemSDNodeFlags(false, ISD::UNINDEXED, isVolatile, Alignment)); + ID.AddInteger(OrigAlignment); void *IP = 0; if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP)) return SDValue(E, 0); SDNode *N = NodeAllocator.Allocate<StoreSDNode>(); new (N) StoreSDNode(Ops, dl, VTs, ISD::UNINDEXED, false, - VT, SV, SVOffset, Alignment, isVolatile); + VT, SV, SVOffset, Alignment, isVolatile, OrigAlignment); CSEMap.InsertNode(N, IP); AllNodes.push_back(N); return SDValue(N, 0); @@ -4968,9 +4977,10 @@ GlobalAddressSDNode::GlobalAddressSDNode(unsigned Opc, const GlobalValue *GA, } MemSDNode::MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, EVT memvt, - const Value *srcValue, int SVO, - unsigned alignment, bool vol) - : SDNode(Opc, dl, VTs), MemoryVT(memvt), SrcValue(srcValue), SVOffset(SVO) { + const Value *srcValue, int SVO, unsigned alignment, + bool vol, unsigned origAlign) + : SDNode(Opc, dl, VTs), MemoryVT(memvt), SrcValue(srcValue), SVOffset(SVO), + OrigAlign(origAlign) { SubclassData = encodeMemSDNodeFlags(0, ISD::UNINDEXED, vol, alignment); assert(isPowerOf2_32(alignment) && "Alignment is not a power of 2!"); assert(getAlignment() == alignment && "Alignment representation error!"); @@ -4978,11 +4988,11 @@ MemSDNode::MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, EVT memvt, } MemSDNode::MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, - const SDValue *Ops, - unsigned NumOps, EVT memvt, const Value *srcValue, - int SVO, unsigned alignment, bool vol) + const SDValue *Ops, unsigned NumOps, EVT memvt, + const Value *srcValue, int SVO, unsigned alignment, + bool vol, unsigned origAlign) : SDNode(Opc, dl, VTs, Ops, NumOps), - MemoryVT(memvt), SrcValue(srcValue), SVOffset(SVO) { + MemoryVT(memvt), SrcValue(srcValue), SVOffset(SVO), OrigAlign(origAlign) { SubclassData = encodeMemSDNodeFlags(0, ISD::UNINDEXED, vol, alignment); assert(isPowerOf2_32(alignment) && "Alignment is not a power of 2!"); assert(getAlignment() == alignment && "Alignment representation error!"); |