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Match wrapper node for address

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llvm-svn: 70731
This commit is contained in:
Anton Korobeynikov 2009-05-03 13:08:51 +00:00
parent cd06be1d13
commit eea3a58bbf
1 changed files with 17 additions and 2 deletions
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19
lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
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@ -79,7 +79,8 @@ bool MSP430DAGToDAGISel::SelectAddr(SDValue Op, SDValue Addr,
return false;
// Operand is a result from ADD with constant operand which fits into i16.
if (Addr.getOpcode() == ISD::ADD) {
switch (Addr.getOpcode()) {
case ISD::ADD:
if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) {
uint64_t CVal = CN->getZExtValue();
// Offset should fit into 16 bits.
@ -94,7 +95,21 @@ bool MSP430DAGToDAGISel::SelectAddr(SDValue Op, SDValue Addr,
return true;
}
}
}
break;
case MSP430ISD::Wrapper:
SDValue N0 = Addr.getOperand(0);
if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(N0)) {
// We can match addresses of globals without any offsets
if (!G->getOffset()) {
Base = CurDAG->getTargetGlobalAddress(G->getGlobal(),
MVT::i16, 0);
Disp = CurDAG->getTargetConstant(0, MVT::i16);
return true;
}
}
break;
};
Base = Addr;
Disp = CurDAG->getTargetConstant(0, MVT::i16);