[AArch64] Simplify/refactor code to ease code review. NFC.

[oota-llvm.git] / lib / Target / AArch64 / AArch64FrameLowering.h

diff --git a/lib/Target/AArch64/AArch64FrameLowering.h b/lib/Target/AArch64/AArch64FrameLowering.h
index 7686e6f1843238eb9123bd8c549c171f736bab5a..16dab2f5754f3a775826aa6172f7e48e96ade6e1 100644 (file)
--- a/lib/Target/AArch64/AArch64FrameLowering.h
+++ b/lib/Target/AArch64/AArch64FrameLowering.h
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef AArch64_FRAMELOWERING_H
-#define AArch64_FRAMELOWERING_H
+#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
+#define LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
 
 #include "llvm/Target/TargetFrameLowering.h"
 
@@ -22,7 +22,7 @@ class AArch64FrameLowering : public TargetFrameLowering {
 public:
   explicit AArch64FrameLowering()
       : TargetFrameLowering(StackGrowsDown, 16, 0, 16,
-                            false /*StackRealignable*/) {}
+                            true /*StackRealignable*/) {}
 
   void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MBBI,
@@ -34,10 +34,9 @@ public:
 
   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
   /// the function.
-  void emitPrologue(MachineFunction &MF) const override;
+  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
 
-  int getFrameIndexOffset(const MachineFunction &MF, int FI) const override;
   int getFrameIndexReference(const MachineFunction &MF, int FI,
                              unsigned &FrameReg) const override;
   int resolveFrameIndexReference(const MachineFunction &MF, int FI,
@@ -59,8 +58,8 @@ public:
   bool hasFP(const MachineFunction &MF) const override;
   bool hasReservedCallFrame(const MachineFunction &MF) const override;
 
-  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
-                                            RegScavenger *RS) const override;
+  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
+                            RegScavenger *RS) const override;
 };
 
 } // End llvm namespace