llvm-mirror/lib/Target/Nios2/Nios2MachineFunction.h
Nikolai Bozhenov a1d10f171e [Nios2] final infrastructure to provide compilation of a return from a function
This patch includes all missing functionality needed to provide first
compilation of a simple program that just returns from a function.
I've added a test case that checks for "ret" instruction printed in assembly
output.

Patch by Andrei Grischenko (andrei.l.grischenko@intel.com)
Differential revision: https://reviews.llvm.org/D39688

llvm-svn: 320035
2017-12-07 12:35:02 +00:00

63 lines
2.0 KiB
C++

//===-- Nios2MachineFunctionInfo.h - Private data used for Nios2 --*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the Nios2 specific subclass of MachineFunctionInfo.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_NIOS2_NIOS2MACHINEFUNCTION_H
#define LLVM_LIB_TARGET_NIOS2_NIOS2MACHINEFUNCTION_H
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
/// Nios2FunctionInfo - This class is derived from MachineFunction private
/// Nios2 target-specific information for each MachineFunction.
class Nios2FunctionInfo : public MachineFunctionInfo {
virtual void anchor();
private:
unsigned GlobalBaseReg;
/// VarArgsFrameOffset - Frame offset to start of varargs area.
int VarArgsFrameOffset;
/// SRetReturnReg - Holds the virtual register into which the sret
/// argument is passed.
unsigned SRetReturnReg;
/// IsLeafProc - True if the function is a leaf procedure.
bool IsLeafProc;
public:
Nios2FunctionInfo()
: GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
IsLeafProc(false) {}
explicit Nios2FunctionInfo(MachineFunction &MF)
: GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
IsLeafProc(false) {}
unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
int getVarArgsFrameOffset() const { return VarArgsFrameOffset; }
void setVarArgsFrameOffset(int Offset) { VarArgsFrameOffset = Offset; }
unsigned getSRetReturnReg() const { return SRetReturnReg; }
void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
void setLeafProc(bool rhs) { IsLeafProc = rhs; }
bool isLeafProc() const { return IsLeafProc; }
};
} // end of namespace llvm
#endif // NIOS2_MACHINE_FUNCTION_INFO_H