1//===-- VESubtarget.h - Define Subtarget for the VE -------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file declares the VE specific subclass of TargetSubtargetInfo.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_VE_VESUBTARGET_H
14#define LLVM_LIB_TARGET_VE_VESUBTARGET_H
15
16#include "VEFrameLowering.h"
17#include "VEISelLowering.h"
18#include "VEInstrInfo.h"
19#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
20#include "llvm/CodeGen/TargetFrameLowering.h"
21#include "llvm/CodeGen/TargetSubtargetInfo.h"
22#include "llvm/IR/DataLayout.h"
23#include <string>
24
25#define GET_SUBTARGETINFO_HEADER
26#include "VEGenSubtargetInfo.inc"
27
28namespace llvm {
29class StringRef;
30
31class VESubtarget : public VEGenSubtargetInfo {
32 Triple TargetTriple;
33 virtual void anchor();
34
35 /// Features {
36
37 // Emit VPU instructions
38 bool EnableVPU;
39
40 /// } Features
41
42 VEInstrInfo InstrInfo;
43 VETargetLowering TLInfo;
44 SelectionDAGTargetInfo TSInfo;
45 VEFrameLowering FrameLowering;
46
47public:
48 VESubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
49 const TargetMachine &TM);
50
51 const VEInstrInfo *getInstrInfo() const override { return &InstrInfo; }
52 const VEFrameLowering *getFrameLowering() const override {
53 return &FrameLowering;
54 }
55 const VERegisterInfo *getRegisterInfo() const override {
56 return &InstrInfo.getRegisterInfo();
57 }
58 const VETargetLowering *getTargetLowering() const override { return &TLInfo; }
59 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
60 return &TSInfo;
61 }
62
63 bool enableMachineScheduler() const override;
64
65 bool enableVPU() const { return EnableVPU; }
66
67 /// ParseSubtargetFeatures - Parses features string setting specified
68 /// subtarget options. Definition of function is auto generated by tblgen.
69 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
70 VESubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
71
72 /// Given a actual stack size as determined by FrameInfo, this function
73 /// returns adjusted framesize which includes space for RSA, return
74 /// address, and frame poitner.
75 uint64_t getAdjustedFrameSize(uint64_t FrameSize) const;
76
77 /// Get the size of RSA, return address, and frame pointer as described
78 /// in VEFrameLowering.cpp.
79 unsigned getRsaSize() const { return 176; };
80
81 bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
82};
83
84} // namespace llvm
85
86#endif
87