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By default, the eh.sjlj.setjmp/longjmp intrinsics should just do nothing rather

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than assuming a target will custom lower them. Targets which do so should
exlicitly mark them as having custom lowerings. PR7454.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107734 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-07-06 23:44:52 +00:00
parent d3b376b448
commit c66e150b2c
2 changed files with 9 additions and 2 deletions
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9
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -859,6 +859,8 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
case ISD::MERGE_VALUES:
case ISD::EH_RETURN:
case ISD::FRAME_TO_ARGS_OFFSET:
case ISD::EH_SJLJ_SETJMP:
case ISD::EH_SJLJ_LONGJMP:
// These operations lie about being legal: when they claim to be legal,
// they should actually be expanded.
Action = TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0));
@ -868,8 +870,6 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
case ISD::TRAMPOLINE:
case ISD::FRAMEADDR:
case ISD::RETURNADDR:
case ISD::EH_SJLJ_SETJMP:
case ISD::EH_SJLJ_LONGJMP:
// These operations lie about being legal: when they claim to be legal,
// they should actually be custom-lowered.
Action = TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0));
@ -2507,6 +2507,11 @@ void SelectionDAGLegalize::ExpandNode(SDNode *Node,
case ISD::EH_LABEL:
case ISD::PREFETCH:
case ISD::VAEND:
case ISD::EH_SJLJ_LONGJMP:
Results.push_back(Node->getOperand(0));
break;
case ISD::EH_SJLJ_SETJMP:
Results.push_back(DAG.getConstant(0, MVT::i32));
Results.push_back(Node->getOperand(0));
break;
case ISD::MEMBARRIER: {

2
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -473,6 +473,8 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
// We want to custom lower some of our intrinsics.
setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::Other, Custom);
setOperationAction(ISD::EH_SJLJ_SETJMP, MVT::i32, Custom);
setOperationAction(ISD::EH_SJLJ_LONGJMP, MVT::Other, Custom);
setOperationAction(ISD::SETCC, MVT::i32, Expand);
setOperationAction(ISD::SETCC, MVT::f32, Expand);