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Rather than avoiding to wrap ISD::DECLARE GV operand in X86ISD::Wrapper, simply handle it at dagisel time with x86 specific isel code.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52377 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-06-17 02:01:22 +00:00
parent fc196f9ee9
commit 851bc04533
2 changed files with 22 additions and 3 deletions
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22
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -1578,6 +1578,28 @@ SDNode *X86DAGToDAGISel::Select(SDOperand N) {
return ResNode; return ResNode;
break; break;
} }
case ISD::DECLARE: {
// Handle DECLARE nodes here because the second operand may have been
// wrapped in X86ISD::Wrapper.
SDOperand Chain = Node->getOperand(0);
SDOperand N1 = Node->getOperand(1);
SDOperand N2 = Node->getOperand(2);
if (isa<FrameIndexSDNode>(N1) &&
N2.getOpcode() == X86ISD::Wrapper &&
isa<GlobalAddressSDNode>(N2.getOperand(0))) {
int FI = cast<FrameIndexSDNode>(N1)->getIndex();
GlobalValue *GV =
cast<GlobalAddressSDNode>(N2.getOperand(0))->getGlobal();
SDOperand Tmp1 = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
SDOperand Tmp2 = CurDAG->getTargetGlobalAddress(GV, TLI.getPointerTy());
AddToISelQueue(Chain);
SDOperand Ops[] = { Tmp1, Tmp2, Chain };
return CurDAG->getTargetNode(TargetInstrInfo::DECLARE,
MVT::Other, Ops, 3);
}
break;
}
} }
SDNode *ResNode = SelectCode(N); SDNode *ResNode = SelectCode(N);

3
lib/Target/X86/X86ISelLowering.cpp
View File

@ -4173,9 +4173,6 @@ SDOperand
X86TargetLowering::LowerGlobalAddress(SDOperand Op, SelectionDAG &DAG) { X86TargetLowering::LowerGlobalAddress(SDOperand Op, SelectionDAG &DAG) {
GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
SDOperand Result = DAG.getTargetGlobalAddress(GV, getPointerTy()); SDOperand Result = DAG.getTargetGlobalAddress(GV, getPointerTy());
// If it's a debug information descriptor, don't mess with it.
if (DAG.isVerifiedDebugInfoDesc(Op))
return Result;
Result = DAG.getNode(X86ISD::Wrapper, getPointerTy(), Result); Result = DAG.getNode(X86ISD::Wrapper, getPointerTy(), Result);
// With PIC, the address is actually $g + Offset. // With PIC, the address is actually $g + Offset.
if (getTargetMachine().getRelocationModel() == Reloc::PIC_ && if (getTargetMachine().getRelocationModel() == Reloc::PIC_ &&