1 files changed, 71 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/AMDGPU/SIFrameLowering.h b/contrib/llvm/lib/Target/AMDGPU/SIFrameLowering.h
new file mode 100644
index 000000000000..d4dfa1c7eaa8
--- /dev/null
+++ b/contrib/llvm/lib/Target/AMDGPU/SIFrameLowering.h
@@ -0,0 +1,71 @@
+//===--------------------- SIFrameLowering.h --------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
+#define LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
+
+#include "AMDGPUFrameLowering.h"
+
+namespace llvm {
+
+class SIInstrInfo;
+class SIMachineFunctionInfo;
+class SIRegisterInfo;
+class SISubtarget;
+
+class SIFrameLowering final : public AMDGPUFrameLowering {
+public:
+  SIFrameLowering(StackDirection D, unsigned StackAl, int LAO,
+                  unsigned TransAl = 1) :
+    AMDGPUFrameLowering(D, StackAl, LAO, TransAl) {}
+  ~SIFrameLowering() override = default;
+
+  void emitEntryFunctionPrologue(MachineFunction &MF,
+                                 MachineBasicBlock &MBB) const;
+  void emitPrologue(MachineFunction &MF,
+                    MachineBasicBlock &MBB) const override;
+  void emitEpilogue(MachineFunction &MF,
+                    MachineBasicBlock &MBB) const override;
+  int getFrameIndexReference(const MachineFunction &MF, int FI,
+                             unsigned &FrameReg) const override;
+
+  void processFunctionBeforeFrameFinalized(
+    MachineFunction &MF,
+    RegScavenger *RS = nullptr) const override;
+
+private:
+  void emitFlatScratchInit(const SISubtarget &ST,
+                           MachineFunction &MF,
+                           MachineBasicBlock &MBB) const;
+
+  unsigned getReservedPrivateSegmentBufferReg(
+    const SISubtarget &ST,
+    const SIInstrInfo *TII,
+    const SIRegisterInfo *TRI,
+    SIMachineFunctionInfo *MFI,
+    MachineFunction &MF) const;
+
+  std::pair<unsigned, 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;
+
+public:
+  bool hasFP(const MachineFunction &MF) const override;
+  bool hasSP(const MachineFunction &MF) const;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H