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Add support for external symbols, and support for variable arity instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23022 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-24 22:02:41 +00:00
parent e39db07713
commit 14b392af1d
1 changed files with 12 additions and 5 deletions
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17
lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
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@ -82,16 +82,20 @@ unsigned SimpleSched::Emit(SDOperand Op) {
unsigned NumResults = Op.Val->getNumValues();
if (NumResults && Op.Val->getValueType(NumResults-1) == MVT::Other)
--NumResults;
unsigned NodeOperands = Op.getNumOperands();
if (NodeOperands && // Ignore chain if it exists.
Op.getOperand(NodeOperands-1).getValueType() == MVT::Other)
--NodeOperands;
unsigned NumMIOperands = NodeOperands+NumResults;
#ifndef _NDEBUG
unsigned Operands = Op.getNumOperands();
if (Operands && Op.getOperand(Operands-1).getValueType() == MVT::Other)
--Operands;
assert(unsigned(II.numOperands) == Operands+NumResults &&
assert((unsigned(II.numOperands) == NumMIOperands || II.numOperands == -1)&&
"#operands for dag node doesn't match .td file!");
#endif
// Create the new machine instruction.
MachineInstr *MI = new MachineInstr(Opc, II.numOperands, true, true);
MachineInstr *MI = new MachineInstr(Opc, NumMIOperands, true, true);
// Add result register values for things that are defined by this
// instruction.
@ -136,6 +140,9 @@ unsigned SimpleSched::Emit(SDOperand Op) {
} else if (ConstantPoolSDNode *CP =
dyn_cast<ConstantPoolSDNode>(Op.getOperand(i))) {
MI->addConstantPoolIndexOperand(CP->getIndex());
} else if (ExternalSymbolSDNode *ES =
dyn_cast<ExternalSymbolSDNode>(Op.getOperand(i))) {
MI->addExternalSymbolOperand(ES->getSymbol(), false);
} else {
unsigned R = Emit(Op.getOperand(i));
// Add an operand, unless this corresponds to a chain node.