diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2021-02-16 20:13:02 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2021-02-16 20:13:02 +0000 |
| commit | b60736ec1405bb0a8dd40989f67ef4c93da068ab (patch) | |
| tree | 5c43fbb7c9fc45f0f87e0e6795a86267dbd12f9d /llvm/lib/Target/SystemZ/SystemZFrameLowering.h | |
| parent | cfca06d7963fa0909f90483b42a6d7d194d01e08 (diff) | |
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZFrameLowering.h')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZFrameLowering.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZFrameLowering.h b/llvm/lib/Target/SystemZ/SystemZFrameLowering.h index 8752acc7e5ae..085c31ca0f18 100644 --- a/llvm/lib/Target/SystemZ/SystemZFrameLowering.h +++ b/llvm/lib/Target/SystemZ/SystemZFrameLowering.h @@ -9,8 +9,10 @@ #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZFRAMELOWERING_H #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZFRAMELOWERING_H +#include "MCTargetDesc/SystemZMCTargetDesc.h" #include "llvm/ADT/IndexedMap.h" #include "llvm/CodeGen/TargetFrameLowering.h" +#include "llvm/Support/TypeSize.h" namespace llvm { class SystemZTargetMachine; @@ -47,8 +49,8 @@ public: MachineBasicBlock &PrologMBB) const override; bool hasFP(const MachineFunction &MF) const override; bool hasReservedCallFrame(const MachineFunction &MF) const override; - int getFrameIndexReference(const MachineFunction &MF, int FI, - Register &FrameReg) const override; + StackOffset getFrameIndexReference(const MachineFunction &MF, int FI, + Register &FrameReg) const override; MachineBasicBlock::iterator eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override; @@ -62,6 +64,12 @@ public: int getOrCreateFramePointerSaveIndex(MachineFunction &MF) const; bool usePackedStack(MachineFunction &MF) const; + + // Return the offset of the backchain. + unsigned getBackchainOffset(MachineFunction &MF) const { + // The back chain is stored topmost with packed-stack. + return usePackedStack(MF) ? SystemZMC::CallFrameSize - 8 : 0; + } }; } // end namespace llvm |