1//===--- Lanai.h - Declare Lanai target feature support ---------*- 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 Lanai TargetInfo objects.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_LANAI_H
14#define LLVM_CLANG_LIB_BASIC_TARGETS_LANAI_H
15
16#include "clang/Basic/TargetInfo.h"
17#include "clang/Basic/TargetOptions.h"
18#include "llvm/Support/Compiler.h"
19#include "llvm/TargetParser/Triple.h"
20
21namespace clang {
22namespace targets {
23
24class LLVM_LIBRARY_VISIBILITY LanaiTargetInfo : public TargetInfo {
25  // Class for Lanai (32-bit).
26  // The CPU profiles supported by the Lanai backend
27  enum CPUKind {
28    CK_NONE,
29    CK_V11,
30  } CPU;
31
32  static const TargetInfo::GCCRegAlias GCCRegAliases[];
33  static const char *const GCCRegNames[];
34
35public:
36  LanaiTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
37      : TargetInfo(Triple) {
38    // Description string has to be kept in sync with backend.
39    resetDataLayout("E"        // Big endian
40                    "-m:e"     // ELF name manging
41                    "-p:32:32" // 32 bit pointers, 32 bit aligned
42                    "-i64:64"  // 64 bit integers, 64 bit aligned
43                    "-a:0:32"  // 32 bit alignment of objects of aggregate type
44                    "-n32"     // 32 bit native integer width
45                    "-S64"     // 64 bit natural stack alignment
46    );
47
48    // Setting RegParmMax equal to what mregparm was set to in the old
49    // toolchain
50    RegParmMax = 4;
51
52    // Set the default CPU to V11
53    CPU = CK_V11;
54
55    // Temporary approach to make everything at least word-aligned and allow for
56    // safely casting between pointers with different alignment requirements.
57    // TODO: Remove this when there are no more cast align warnings on the
58    // firmware.
59    MinGlobalAlign = 32;
60  }
61
62  void getTargetDefines(const LangOptions &Opts,
63                        MacroBuilder &Builder) const override;
64
65  bool isValidCPUName(StringRef Name) const override;
66
67  void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
68
69  bool setCPU(const std::string &Name) override;
70
71  bool hasFeature(StringRef Feature) const override;
72
73  ArrayRef<const char *> getGCCRegNames() const override;
74
75  ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
76
77  BuiltinVaListKind getBuiltinVaListKind() const override {
78    return TargetInfo::VoidPtrBuiltinVaList;
79  }
80
81  ArrayRef<Builtin::Info> getTargetBuiltins() const override {
82    return std::nullopt;
83  }
84
85  bool validateAsmConstraint(const char *&Name,
86                             TargetInfo::ConstraintInfo &info) const override {
87    return false;
88  }
89
90  std::string_view getClobbers() const override { return ""; }
91
92  bool hasBitIntType() const override { return true; }
93};
94} // namespace targets
95} // namespace clang
96
97#endif // LLVM_CLANG_LIB_BASIC_TARGETS_LANAI_H
98