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oops, forgot to load GP for indirect calls, though the old code now commented

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out failed (e.g. methcall) - now the code compiles, though it's not quite
right just yet (tm) ;)

would fix this but it's 3am! :O


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24186 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duraid Madina 2005-11-04 17:55:53 +00:00
parent b97cc99058
commit 764fe71e12
1 changed files with 21 additions and 4 deletions
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25
lib/Target/IA64/IA64ISelDAGToDAG.cpp
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@ -185,23 +185,40 @@ SDOperand IA64DAGToDAGISel::SelectCALL(SDOperand Op) {
} else {
// otherwise we need to load the function descriptor,
// load the branch target (function)'s entry point and GP,
// branch (call) then restore the
// GP
// branch (call) then restore the GP
SDOperand FnDescriptor = Select(N->getOperand(1));
// load the branch target's entry point [mem] and
// GP value [mem+8]
SDOperand targetEntryPoint=CurDAG->getTargetNode(IA64::LD8, MVT::i64,
FnDescriptor);
Chain = targetEntryPoint.getValue(1);
SDOperand targetGPAddr=CurDAG->getTargetNode(IA64::ADDS, MVT::i64,
FnDescriptor, CurDAG->getConstant(8, MVT::i64));
Chain = targetGPAddr.getValue(1);
SDOperand targetGP=CurDAG->getTargetNode(IA64::LD8, MVT::i64,
targetGPAddr);
Chain = targetGP.getValue(1);
/* FIXME! (methcall still fails)
SDOperand targetEntryPoint=CurDAG->getLoad(MVT::i64, Chain, FnDescriptor,
CurDAG->getSrcValue(0));
SDOperand targetGPAddr=CurDAG->getNode(ISD::ADD, MVT::i64, FnDescriptor,
CurDAG->getConstant(8, MVT::i64));
SDOperand targetGP=CurDAG->getLoad(MVT::i64, Chain, targetGPAddr,
CurDAG->getSrcValue(0));
CurDAG->getSrcValue(0));
*/
// Copy the callee GP into r1
SDOperand r1 = CurDAG->getRegister(IA64::r1, MVT::i64);
Chain = CurDAG->getNode(ISD::CopyToReg, MVT::i64, Chain, r1,
targetGP);
// Copy the callee address into the b6 branch register
SDOperand B6 = CurDAG->getRegister(IA64::B6, MVT::i64);
Chain = CurDAG->getNode(ISD::CopyToReg, MVT::Other, Chain, B6,
Chain = CurDAG->getNode(ISD::CopyToReg, MVT::i64, Chain, B6,
targetEntryPoint);
CallOperands.push_back(B6);