Add "Restored" flag to CalleeSavedInfo

The liveness-tracking code assumes that the registers that were saved
in the function's prolog are live outside of the function. Specifically,
that registers that were saved are also live-on-exit from the function.
This isn't always the case as illustrated by the LR register on ARM.

Differential Revision: https://reviews.llvm.org/D36160

llvm-svn: 310619

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/ARMFrameLowering.h b/llvm/lib/Target/ARM/ARMFrameLowering.h
index 21cd78da395..930ee531a3a 100644
--- a/llvm/lib/Target/ARM/ARMFrameLowering.h
+++ b/llvm/lib/Target/ARM/ARMFrameLowering.h
@@ -38,7 +38,7 @@ public:
 
   bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
                                   MachineBasicBlock::iterator MI,
-                                  const std::vector<CalleeSavedInfo> &CSI,
+                                  std::vector<CalleeSavedInfo> &CSI,
                                   const TargetRegisterInfo *TRI) const override;
 
   bool noFramePointerElim(const MachineFunction &MF) const override;
@@ -69,7 +69,7 @@ public:
                     bool(*Func)(unsigned, bool), unsigned NumAlignedDPRCS2Regs,
                     unsigned MIFlags = 0) const;
   void emitPopInst(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
-                   const std::vector<CalleeSavedInfo> &CSI, unsigned LdmOpc,
+                   std::vector<CalleeSavedInfo> &CSI, unsigned LdmOpc,
                    unsigned LdrOpc, bool isVarArg, bool NoGap,
                    bool(*Func)(unsigned, bool),
                    unsigned NumAlignedDPRCS2Regs) const;