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| author | Albert Gutowski <agutowski@google.com> | 2016-10-12 22:13:19 +0000 |
|---|---|---|
| committer | Albert Gutowski <agutowski@google.com> | 2016-10-12 22:13:19 +0000 |
| commit | 795d7d63810619af504ca1330aaa967c6e1c976d (patch) | |
| tree | 4eebf0989b7ec2c007d25a9366eab6f76e90f18d /llvm/lib/Target | |
| parent | 2a0621e58a3929a0e1662c67ae59bfbb11b3b08f (diff) | |
| download | bcm5719-llvm-795d7d63810619af504ca1330aaa967c6e1c976d.tar.gz bcm5719-llvm-795d7d63810619af504ca1330aaa967c6e1c976d.zip | |
Create llvm.addressofreturnaddress intrinsic
Summary: We need a new LLVM intrinsic to implement MS _AddressOfReturnAddress builtin on 64-bit Windows.
Reviewers: majnemer, rnk
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D25293
llvm-svn: 284061
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 7 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index d765f3e126d..8a4117b8ed6 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -18931,6 +18931,12 @@ SDValue X86TargetLowering::LowerRETURNADDR(SDValue Op, MachinePointerInfo()); } +SDValue X86TargetLowering::LowerADDROFRETURNADDR(SDValue Op, + SelectionDAG &DAG) const { + DAG.getMachineFunction().getFrameInfo().setReturnAddressIsTaken(true); + return getReturnAddressFrameIndex(DAG); +} + SDValue X86TargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const { MachineFunction &MF = DAG.getMachineFunction(); MachineFrameInfo &MFI = MF.getFrameInfo(); @@ -22056,6 +22062,7 @@ SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { case ISD::INTRINSIC_VOID: case ISD::INTRINSIC_W_CHAIN: return LowerINTRINSIC_W_CHAIN(Op, Subtarget, DAG); case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG); + case ISD::ADDROFRETURNADDR: return LowerADDROFRETURNADDR(Op, DAG); case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); case ISD::FRAME_TO_ARGS_OFFSET: return LowerFRAME_TO_ARGS_OFFSET(Op, DAG); diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h index 46219eb5250..b193dc21113 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.h +++ b/llvm/lib/Target/X86/X86ISelLowering.h @@ -1130,6 +1130,7 @@ namespace llvm { SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const; SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG) const; SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerADDROFRETURNADDR(SDValue Op, SelectionDAG &DAG) const; SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const; SDValue LowerFRAME_TO_ARGS_OFFSET(SDValue Op, SelectionDAG &DAG) const; SDValue LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const; |
