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a1d10f171e
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
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
//===-- Nios2Subtarget.h - Define Subtarget for the Nios2 -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the Nios2 specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_NIOS2_NIOS2SUBTARGET_H
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#define LLVM_LIB_TARGET_NIOS2_NIOS2SUBTARGET_H
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#include "Nios2FrameLowering.h"
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#include "Nios2ISelLowering.h"
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#include "Nios2InstrInfo.h"
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#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
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#include "llvm/CodeGen/TargetFrameLowering.h"
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#include "llvm/CodeGen/TargetSubtargetInfo.h"
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#define GET_SUBTARGETINFO_HEADER
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#include "Nios2GenSubtargetInfo.inc"
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namespace llvm {
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class StringRef;
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class Nios2TargetMachine;
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class Nios2Subtarget : public Nios2GenSubtargetInfo {
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virtual void anchor();
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public:
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// Nios2 R2 features
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// Bit manipulation instructions extension
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bool HasBMX;
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// Code Density instructions extension
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bool HasCDX;
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// Multi-Processor instructions extension
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bool HasMPX;
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// New mandatory instructions
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bool HasR2Mandatory;
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protected:
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enum Nios2ArchEnum {
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// Nios2 R1 ISA
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Nios2r1,
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// Nios2 R2 ISA
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Nios2r2
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};
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// Nios2 architecture version
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Nios2ArchEnum Nios2ArchVersion;
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Triple TargetTriple;
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Nios2InstrInfo InstrInfo;
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Nios2TargetLowering TLInfo;
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SelectionDAGTargetInfo TSInfo;
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Nios2FrameLowering FrameLowering;
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public:
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/// This constructor initializes the data members to match that
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/// of the specified triple.
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Nios2Subtarget(const Triple &TT, const std::string &CPU,
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const std::string &FS, const TargetMachine &TM);
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/// ParseSubtargetFeatures - Parses features string setting specified
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/// subtarget options. Definition of function is auto generated by tblgen.
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void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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bool hasNios2r1() const { return Nios2ArchVersion >= Nios2r1; }
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bool isNios2r1() const { return Nios2ArchVersion == Nios2r1; }
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bool hasNios2r2() const { return Nios2ArchVersion >= Nios2r2; }
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bool isNios2r2() const { return Nios2ArchVersion == Nios2r2; }
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Nios2Subtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
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const Nios2InstrInfo *getInstrInfo() const override { return &InstrInfo; }
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const TargetFrameLowering *getFrameLowering() const override {
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return &FrameLowering;
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}
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const Nios2RegisterInfo *getRegisterInfo() const override {
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return &InstrInfo.getRegisterInfo();
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}
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const Nios2TargetLowering *getTargetLowering() const override {
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return &TLInfo;
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}
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const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
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return &TSInfo;
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}
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};
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} // namespace llvm
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#endif
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