[Statepoints 2/4] Statepoint infrastructure for garbage collection: MI & x86-64 Backend

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

diff --git a/lib/Target/X86/X86FrameLowering.h b/lib/Target/X86/X86FrameLowering.h
index b225f2d17da720a10babddca6f6c83fdb31d2f81..2ee71159c190b197d79e7dd05b09473a0756cdcb 100644 (file)
--- a/lib/Target/X86/X86FrameLowering.h
+++ b/lib/Target/X86/X86FrameLowering.h
@@ -11,26 +11,29 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef X86_FRAMELOWERING_H
-#define X86_FRAMELOWERING_H
+#ifndef LLVM_LIB_TARGET_X86_X86FRAMELOWERING_H
+#define LLVM_LIB_TARGET_X86_X86FRAMELOWERING_H
 
-#include "X86Subtarget.h"
 #include "llvm/Target/TargetFrameLowering.h"
 
 namespace llvm {
 
 class MCSymbol;
 class X86TargetMachine;
+class X86Subtarget;
 
 class X86FrameLowering : public TargetFrameLowering {
 public:
-  explicit X86FrameLowering(const X86Subtarget &sti)
-      : TargetFrameLowering(StackGrowsDown, sti.getStackAlignment(),
-                            (sti.is64Bit() ? -8 : -4)) {}
+  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,
-                                 unsigned FramePtr) const;
+                                 MachineBasicBlock::iterator MBBI,
+                                 DebugLoc DL) const;
 
   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
   /// the function.
@@ -44,6 +47,11 @@ public:
   void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
                                      RegScavenger *RS = nullptr) const override;
 
+  bool
+  assignCalleeSavedSpillSlots(MachineFunction &MF,
+                              const TargetRegisterInfo *TRI,
+                              std::vector<CalleeSavedInfo> &CSI) const override;
+
   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MI,
                                  const std::vector<CalleeSavedInfo> &CSI,
@@ -61,6 +69,10 @@ 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;