BPF backend

[oota-llvm.git] / lib / Target / BPF / BPFRegisterInfo.h

diff --git a/lib/Target/BPF/BPFRegisterInfo.h b/lib/Target/BPF/BPFRegisterInfo.h
new file mode 100644 (file)
index 0000000..364d6f6
--- /dev/null
+++ b/lib/Target/BPF/BPFRegisterInfo.h
@@ -0,0 +1,41 @@
+//===-- BPFRegisterInfo.h - BPF Register Information Impl -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the BPF implementation of the TargetRegisterInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_BPF_BPFREGISTERINFO_H
+#define LLVM_LIB_TARGET_BPF_BPFREGISTERINFO_H
+
+#include "llvm/Target/TargetRegisterInfo.h"
+
+#define GET_REGINFO_HEADER
+#include "BPFGenRegisterInfo.inc"
+
+namespace llvm {
+
+struct BPFRegisterInfo : public BPFGenRegisterInfo {
+
+  BPFRegisterInfo();
+
+  const MCPhysReg *
+  getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
+
+  BitVector getReservedRegs(const MachineFunction &MF) const override;
+
+  void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
+                           unsigned FIOperandNum,
+                           RegScavenger *RS = nullptr) const override;
+
+  unsigned getFrameRegister(const MachineFunction &MF) const override;
+};
+}
+
+#endif