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| author | Jim Grosbach <grosbach@apple.com> | 2010-05-27 18:23:48 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-05-27 18:23:48 +0000 |
| commit | e09ee5c34f29616c2bd649b466551348449c74cf (patch) | |
| tree | 2d307f2511ca144a9f5b46c6b402d8cdc68d0433 /lib/Target | |
| parent | 2fd9f8bbd0a657c63e595bce10f1e3f514896bc6 (diff) | |
| download | external_llvm-e09ee5c34f29616c2bd649b466551348449c74cf.zip external_llvm-e09ee5c34f29616c2bd649b466551348449c74cf.tar.gz external_llvm-e09ee5c34f29616c2bd649b466551348449c74cf.tar.bz2 | |
add ISD::STACKADDR to get the current stack pointer. Will be used by sjlj EH
to update the jmpbuf in the presence of VLAs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104862 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 8 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index b8126a3..f6037c0 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -2183,6 +2183,13 @@ SDValue ARMTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const { return FrameAddr; } +SDValue ARMTargetLowering::LowerSTACKADDR(SDValue Op, SelectionDAG &DAG) const { + EVT VT = Op.getValueType(); + DebugLoc dl = Op.getDebugLoc(); // FIXME probably not meaningful + SDValue StackAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, ARM::SP, VT); + return StackAddr; +} + /// ExpandBIT_CONVERT - If the target supports VFP, this function is called to /// expand a bit convert where either the source or destination type is i64 to /// use a VMOVDRR or VMOVRRD node. This should not be done when the non-i64 @@ -3187,6 +3194,7 @@ SDValue ARMTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { case ISD::FCOPYSIGN: return LowerFCOPYSIGN(Op, DAG); case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG); case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); + case ISD::STACKADDR: return LowerSTACKADDR(Op, DAG); case ISD::GLOBAL_OFFSET_TABLE: return LowerGLOBAL_OFFSET_TABLE(Op, DAG); case ISD::EH_SJLJ_SETJMP: return LowerEH_SJLJ_SETJMP(Op, DAG); case ISD::EH_SJLJ_LONGJMP: return LowerEH_SJLJ_LONGJMP(Op, DAG); diff --git a/lib/Target/ARM/ARMISelLowering.h b/lib/Target/ARM/ARMISelLowering.h index 9c7517c..29b3be1 100644 --- a/lib/Target/ARM/ARMISelLowering.h +++ b/lib/Target/ARM/ARMISelLowering.h @@ -305,6 +305,7 @@ namespace llvm { SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const; SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const; SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerSTACKADDR(SDValue Op, SelectionDAG &DAG) const; SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const; SDValue LowerShiftRightParts(SDValue Op, SelectionDAG &DAG) const; SDValue LowerShiftLeftParts(SDValue Op, SelectionDAG &DAG) const; |