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Add a pre-dispatch SjLj EH hook on the unwind edge for targets to do any

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setup they require. Use this for ARM/Darwin to rematerialize the base
pointer from the frame pointer when required. rdar://8564268

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116879 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2010-10-19 23:27:08 +00:00
parent db4708cf86
commit e4ad387a5a
13 changed files with 135 additions and 18 deletions
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6
lib/Target/ARM/ARMISelLowering.h
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@@ -71,8 +71,9 @@ namespace llvm {
VMOVRRD, // double to two gprs.
VMOVDRR, // Two gprs to double.
EH_SJLJ_SETJMP, // SjLj exception handling setjmp.
EH_SJLJ_LONGJMP, // SjLj exception handling longjmp.
EH_SJLJ_SETJMP, // SjLj exception handling setjmp.
EH_SJLJ_LONGJMP, // SjLj exception handling longjmp.
EH_SJLJ_DISPATCHSETUP, // SjLj exception handling dispatch setup.
TC_RETURN, // Tail call return pseudo.
@@ -332,6 +333,7 @@ namespace llvm {
ISD::ArgFlagsTy Flags) const;
SDValue LowerEH_SJLJ_SETJMP(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerEH_SJLJ_LONGJMP(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerEH_SJLJ_DISPATCHSETUP(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG,
const ARMSubtarget *Subtarget) const;
SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;