Revert r225048: It broke ObjC on AArch64.

[oota-llvm.git] / lib / Target / X86 / X86FrameLowering.h

diff --git a/lib/Target/X86/X86FrameLowering.h b/lib/Target/X86/X86FrameLowering.h
index 0fe454271bb2c5f3d6557879bbd9158ebc348166..ee0ee227cad862058d126b205489f3cd9b50a225 100644 (file)
--- a/lib/Target/X86/X86FrameLowering.h
+++ b/lib/Target/X86/X86FrameLowering.h
@@ -20,12 +20,17 @@ namespace llvm {
 
 class MCSymbol;
 class X86TargetMachine;
+class X86Subtarget;
 
 class X86FrameLowering : public TargetFrameLowering {
 public:
   explicit X86FrameLowering(StackDirection D, unsigned StackAl, int LAO)
     : TargetFrameLowering(StackGrowsDown, StackAl, LAO) {}
 
+  static void getStackProbeFunction(const X86Subtarget &STI,
+                                    unsigned &CallOp,
+                                    const char *&Symbol);
+
   void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MBBI,
                                  DebugLoc DL) const;
@@ -64,9 +69,23 @@ public:
   int getFrameIndexReference(const MachineFunction &MF, int FI,
                              unsigned &FrameReg) const override;
 
+  int getFrameIndexOffsetFromSP(const MachineFunction &MF, int FI) const;
+  int getFrameIndexReferenceFromSP(const MachineFunction &MF, int FI,
+                                   unsigned &FrameReg) const override;
+
   void eliminateCallFramePseudoInstr(MachineFunction &MF,
                                  MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MI) const override;
+
+private:
+  /// convertArgMovsToPushes - This method tries to convert a call sequence
+  /// that uses sub and mov instructions to put the argument onto the stack
+  /// into a series of pushes.
+  /// Returns true if the transformation succeeded, false if not.
+  bool convertArgMovsToPushes(MachineFunction &MF, 
+                              MachineBasicBlock &MBB,
+                              MachineBasicBlock::iterator I, 
+                              uint64_t Amount) const;
 };
 
 } // End llvm namespace