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getPreIndexedLoad -> getIndexedLoad.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31209 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-10-26 21:53:40 +00:00
parent 8862ef1481
commit 5270cf1b77
1 changed files with 7 additions and 21 deletions
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28
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -1447,28 +1447,14 @@ SDOperand SelectionDAG::getExtLoad(ISD::LoadExtType ExtType, MVT::ValueType VT,
return SDOperand(N, 0);
}
SDOperand SelectionDAG::getPreIndexedLoad(SDOperand OrigLoad, SDOperand Base) {
SDOperand SelectionDAG::getIndexedLoad(SDOperand OrigLoad, SDOperand Base,
SDOperand Offset, ISD::MemOpAddrMode AM){
LoadSDNode *LD = cast<LoadSDNode>(OrigLoad);
SDOperand Ptr = LD->getBasePtr();
MVT::ValueType PtrVT = Ptr.getValueType();
unsigned Opc = Ptr.getOpcode();
SDOperand Offset = LD->getOffset();
assert(Offset.getOpcode() == ISD::UNDEF);
assert((Opc == ISD::ADD || Opc == ISD::SUB) &&
"Load address must be <base +/- offset>!");
ISD::MemOpAddrMode AM = (Opc == ISD::ADD) ? ISD::PRE_INC : ISD::PRE_DEC;
if (Ptr.getOperand(0) == Base) {
Offset = Ptr.getOperand(1);
Ptr = Ptr.getOperand(0);
} else {
assert(Ptr.getOperand(1) == Base);
Offset = Ptr.getOperand(0);
Ptr = Ptr.getOperand(1);
}
assert(LD->getOffset().getOpcode() == ISD::UNDEF &&
"Load is already a indexed load!");
MVT::ValueType VT = OrigLoad.getValueType();
SDVTList VTs = getVTList(VT, PtrVT, MVT::Other);
SelectionDAGCSEMap::NodeID ID(ISD::LOAD, VTs, LD->getChain(), Ptr, Offset);
SDVTList VTs = getVTList(VT, Base.getValueType(), MVT::Other);
SelectionDAGCSEMap::NodeID ID(ISD::LOAD, VTs, LD->getChain(), Base, Offset);
ID.AddInteger(AM);
ID.AddInteger(LD->getExtensionType());
ID.AddInteger(LD->getLoadedVT());
@ -1479,7 +1465,7 @@ SDOperand SelectionDAG::getPreIndexedLoad(SDOperand OrigLoad, SDOperand Base) {
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
SDNode *N = new LoadSDNode(LD->getChain(), Ptr, Offset, AM,
SDNode *N = new LoadSDNode(LD->getChain(), Base, Offset, AM,
LD->getExtensionType(), LD->getLoadedVT(),
LD->getSrcValue(), LD->getSrcValueOffset(),
LD->getAlignment(), LD->isVolatile());