AMDGPU: Refactor frame lowering

This will make future changes easier.

llvm-svn: 280296

1 files changed, 23 insertions, 0 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIFrameLowering.h b/llvm/lib/Target/AMDGPU/SIFrameLowering.h
index 37417d098f3..79654b46f94 100644
--- a/llvm/lib/Target/AMDGPU/SIFrameLowering.h
+++ b/llvm/lib/Target/AMDGPU/SIFrameLowering.h
@@ -13,6 +13,10 @@
 #include "AMDGPUFrameLowering.h"
 
 namespace llvm {
+class SIInstrInfo;
+class SIMachineFunctionInfo;
+class SIRegisterInfo;
+class SISubtarget;
 
 class SIFrameLowering final : public AMDGPUFrameLowering {
 public:
@@ -31,6 +35,25 @@ public:
     RegScavenger *RS = nullptr) const override;
 
 private:
+  void emitFlatScratchInit(const SIInstrInfo *TII,
+                           const SIRegisterInfo* TRI,
+                           MachineFunction &MF,
+                           MachineBasicBlock &MBB) const;
+
+  unsigned getReservedPrivateSegmentBufferReg(
+    const SISubtarget &ST,
+    const SIInstrInfo *TII,
+    const SIRegisterInfo *TRI,
+    SIMachineFunctionInfo *MFI,
+    MachineFunction &MF) const;
+
+  unsigned getReservedPrivateSegmentWaveByteOffsetReg(
+    const SISubtarget &ST,
+    const SIInstrInfo *TII,
+    const SIRegisterInfo *TRI,
+    SIMachineFunctionInfo *MFI,
+    MachineFunction &MF) const;
+
   /// \brief Emits debugger prologue.
   void emitDebuggerPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const;
 };