1 files changed, 55 insertions, 0 deletions
diff --git a/lib/Target/Nios2/Nios2RegisterInfo.cpp b/lib/Target/Nios2/Nios2RegisterInfo.cpp
new file mode 100644
index 0000000000000..9b892f9175353
--- /dev/null
+++ b/lib/Target/Nios2/Nios2RegisterInfo.cpp
@@ -0,0 +1,55 @@
+//===-- Nios2RegisterInfo.cpp - Nios2 Register Information -== ------------===//
+//
+//                     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 Nios2 implementation of the TargetRegisterInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "nios2-reg-info"
+
+#include "Nios2RegisterInfo.h"
+
+#include "Nios2.h"
+#include "Nios2Subtarget.h"
+
+#define GET_REGINFO_TARGET_DESC
+#include "Nios2GenRegisterInfo.inc"
+
+using namespace llvm;
+
+Nios2RegisterInfo::Nios2RegisterInfo(const Nios2Subtarget &ST)
+    : Nios2GenRegisterInfo(Nios2::RA), Subtarget(ST) {}
+
+const TargetRegisterClass *Nios2RegisterInfo::intRegClass(unsigned Size) const {
+  return &Nios2::CPURegsRegClass;
+}
+
+const MCPhysReg *
+Nios2RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
+  return CSR_SaveList;
+}
+
+BitVector Nios2RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
+  static const MCPhysReg ReservedCPURegs[] = {Nios2::ZERO, Nios2::AT, Nios2::SP,
+                                             Nios2::RA,   Nios2::PC, Nios2::GP};
+  BitVector Reserved(getNumRegs());
+
+  for (unsigned I = 0; I < array_lengthof(ReservedCPURegs); ++I)
+    Reserved.set(ReservedCPURegs[I]);
+
+  return Reserved;
+}
+
+void Nios2RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
+                                            int SPAdj, unsigned FIOperandNum,
+                                            RegScavenger *RS) const {}
+
+unsigned Nios2RegisterInfo::getFrameRegister(const MachineFunction &MF) const {
+  return Nios2::SP;
+}