Add Thumb1 support for virtual frame indices.

rdar://8277890

llvm-svn: 111533

1 files changed, 8 insertions, 7 deletions

diff --git a/llvm/lib/Target/ARM/Thumb1RegisterInfo.h b/llvm/lib/Target/ARM/Thumb1RegisterInfo.h
index c365327e3f2..cdf625bd9e4 100644
--- a/llvm/lib/Target/ARM/Thumb1RegisterInfo.h
+++ b/llvm/lib/Target/ARM/Thumb1RegisterInfo.h
@@ -44,13 +44,14 @@ public:
                                      MachineBasicBlock &MBB,
                                      MachineBasicBlock::iterator I) const;
 
-  // rewrite MI to access 'Offset' bytes from the FP. Return the offset that
-  // could not be handled directly in MI.
-  int rewriteFrameIndex(MachineInstr &MI, unsigned FrameRegIdx,
-                        unsigned FrameReg, int Offset,
-                        unsigned MOVOpc, unsigned ADDriOpc,
-                        unsigned SUBriOpc) const;
-
+  // rewrite MI to access 'Offset' bytes from the FP. Update Offset to be
+  // however much remains to be handled. Return 'true' if no further
+  // work is required.
+  bool rewriteFrameIndex(MachineBasicBlock::iterator II, unsigned FrameRegIdx,
+                         unsigned FrameReg, int &Offset,
+                         const ARMBaseInstrInfo &TII) const;
+  void resolveFrameIndex(MachineBasicBlock::iterator I,
+                         unsigned BaseReg, int64_t Offset) const;
   bool saveScavengerRegister(MachineBasicBlock &MBB,
                              MachineBasicBlock::iterator I,
                              MachineBasicBlock::iterator &UseMI,