1 //===--- PNaCl.h - Declare PNaCl 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 PNaCl TargetInfo objects.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
14 #define LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
15 
16 #include "Mips.h"
17 #include "clang/Basic/TargetInfo.h"
18 #include "clang/Basic/TargetOptions.h"
19 #include "llvm/ADT/Triple.h"
20 #include "llvm/Support/Compiler.h"
21 
22 namespace clang {
23 namespace targets {
24 
25 class LLVM_LIBRARY_VISIBILITY PNaClTargetInfo : public TargetInfo {
26 public:
27   PNaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
28       : TargetInfo(Triple) {
29     this->LongAlign = 32;
30     this->LongWidth = 32;
31     this->PointerAlign = 32;
32     this->PointerWidth = 32;
33     this->IntMaxType = TargetInfo::SignedLongLong;
34     this->Int64Type = TargetInfo::SignedLongLong;
35     this->DoubleAlign = 64;
36     this->LongDoubleWidth = 64;
37     this->LongDoubleAlign = 64;
38     this->SizeType = TargetInfo::UnsignedInt;
39     this->PtrDiffType = TargetInfo::SignedInt;
40     this->IntPtrType = TargetInfo::SignedInt;
41     this->RegParmMax = 0; // Disallow regparm
42   }
43 
44   void getArchDefines(const LangOptions &Opts, MacroBuilder &Builder) const;
45 
46   void getTargetDefines(const LangOptions &Opts,
47                         MacroBuilder &Builder) const override {
48     getArchDefines(Opts, Builder);
49   }
50 
51   bool hasFeature(StringRef Feature) const override {
52     return Feature == "pnacl";
53   }
54 
55   ArrayRef<Builtin::Info> getTargetBuiltins() const override {
56     return std::nullopt;
57   }
58 
59   BuiltinVaListKind getBuiltinVaListKind() const override {
60     return TargetInfo::PNaClABIBuiltinVaList;
61   }
62 
63   ArrayRef<const char *> getGCCRegNames() const override;
64 
65   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
66 
67   bool validateAsmConstraint(const char *&Name,
68                              TargetInfo::ConstraintInfo &Info) const override {
69     return false;
70   }
71 
72   const char *getClobbers() const override { return ""; }
73 
74   bool hasBitIntType() const override { return true; }
75 };
76 
77 // We attempt to use PNaCl (le32) frontend and Mips32EL backend.
78 class LLVM_LIBRARY_VISIBILITY NaClMips32TargetInfo : public MipsTargetInfo {
79 public:
80   NaClMips32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
81       : MipsTargetInfo(Triple, Opts) {}
82 
83   BuiltinVaListKind getBuiltinVaListKind() const override {
84     return TargetInfo::PNaClABIBuiltinVaList;
85   }
86 };
87 } // namespace targets
88 } // namespace clang
89 
90 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
91