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Correct asmprinting of memory operands

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70732 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-05-03 13:09:10 +00:00
parent 0eb6af40e3
commit 1deea5f3a7
2 changed files with 24 additions and 20 deletions
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18
lib/Target/MSP430/MSP430AsmPrinter.cpp
View File

@ -162,17 +162,23 @@ void MSP430AsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
void MSP430AsmPrinter::printSrcMemOperand(const MachineInstr *MI, int OpNum,
const char* Modifier) {
const MachineOperand &Disp = MI->getOperand(OpNum);
assert(Disp.isImm() && "Displacement can be only immediate!");
const MachineOperand &Base = MI->getOperand(OpNum+1);
// Special case: 0(Reg) -> @Reg
if (Disp.getImm() == 0) {
O << "@";
printOperand(MI, OpNum + 1);
} else {
if (Disp.isGlobal())
printOperand(MI, OpNum, "mem");
else if (Disp.isImm() && !Base.getReg())
printOperand(MI, OpNum);
else if (Base.getReg()) {
if (Disp.getImm()) {
printOperand(MI, OpNum, "nohash");
O << '(';
printOperand(MI, OpNum + 1);
O << ')';
} else {
O << '@';
printOperand(MI, OpNum + 1);
}
} else
assert(0 && "Unsupported memory operand");
}

14
lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
View File

@ -72,6 +72,7 @@ FunctionPass *llvm::createMSP430ISelDag(MSP430TargetMachine &TM) {
return new MSP430DAGToDAGISel(TM);
}
// FIXME: This is pretty dummy routine and needs to be rewritten in the future.
bool MSP430DAGToDAGISel::SelectAddr(SDValue Op, SDValue Addr,
SDValue &Disp, SDValue &Base) {
// We don't support frame index stuff yet.
@ -99,20 +100,17 @@ bool MSP430DAGToDAGISel::SelectAddr(SDValue Op, SDValue Addr,
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);
Base = CurDAG->getRegister(0, MVT::i16);
Disp = CurDAG->getTargetGlobalAddress(G->getGlobal(),
MVT::i16, G->getOffset());
return true;
}
}
break;
};
Base = Addr;
Disp = CurDAG->getTargetConstant(0, MVT::i16);
Base = CurDAG->getRegister(0, MVT::i16);
Disp = Addr;
return true;
}