The BLX instruction is encoded differently than the BL, because why not? In

[oota-llvm.git] / lib / Target / ARM / ARMFrameInfo.h

diff --git a/lib/Target/ARM/ARMFrameInfo.h b/lib/Target/ARM/ARMFrameInfo.h
index d5dae244249988ff549d3207b920be28b097eacc..2ff77b4b49f9b1f0f8222707eafa7cd20f83201a 100644 (file)
--- a/lib/Target/ARM/ARMFrameInfo.h
+++ b/lib/Target/ARM/ARMFrameInfo.h
@@ -19,12 +19,52 @@
 #include "llvm/Target/TargetFrameInfo.h"
 
 namespace llvm {
+  class ARMSubtarget;
 
 class ARMFrameInfo : public TargetFrameInfo {
+protected:
+  const ARMSubtarget &STI;
+
 public:
-  explicit ARMFrameInfo(const ARMSubtarget &ST)
-    : TargetFrameInfo(StackGrowsDown, ST.getStackAlignment(), 0, 4) {
+  explicit ARMFrameInfo(const ARMSubtarget &sti)
+    : TargetFrameInfo(StackGrowsDown, sti.getStackAlignment(), 0, 4), STI(sti) {
   }
+
+  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
+  /// the function.
+  void emitPrologue(MachineFunction &MF) const;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+
+  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
+                                 MachineBasicBlock::iterator MI,
+                                 const std::vector<CalleeSavedInfo> &CSI,
+                                 const TargetRegisterInfo *TRI) const;
+
+  bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
+                                   MachineBasicBlock::iterator MI,
+                                   const std::vector<CalleeSavedInfo> &CSI,
+                                   const TargetRegisterInfo *TRI) const;
+
+  bool hasFP(const MachineFunction &MF) const;
+  bool hasReservedCallFrame(const MachineFunction &MF) const;
+  bool canSimplifyCallFramePseudos(const MachineFunction &MF) const;
+  int getFrameIndexReference(const MachineFunction &MF, int FI,
+                             unsigned &FrameReg) const;
+  int ResolveFrameIndexReference(const MachineFunction &MF, int FI,
+                                 unsigned &FrameReg, int SPAdj) const;
+  int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
+
+  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+                                            RegScavenger *RS) const;
+
+ private:
+  void emitPushInst(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
+                    const std::vector<CalleeSavedInfo> &CSI, unsigned Opc,
+                    bool NoGap, bool(*Func)(unsigned, bool)) const;
+  void emitPopInst(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
+                   const std::vector<CalleeSavedInfo> &CSI, unsigned Opc,
+                   bool isVarArg, bool NoGap,
+                   bool(*Func)(unsigned, bool)) const;
 };
 
 } // End llvm namespace