1 //===--- PNaCl.h - Declare PNaCl target feature support ---------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file declares PNaCl TargetInfo objects.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
15 #define LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
16 
17 #include "Mips.h"
18 #include "clang/Basic/TargetInfo.h"
19 #include "clang/Basic/TargetOptions.h"
20 #include "llvm/ADT/Triple.h"
21 #include "llvm/Support/Compiler.h"
22 
23 namespace clang {
24 namespace targets {
25 
26 class LLVM_LIBRARY_VISIBILITY PNaClTargetInfo : public TargetInfo {
27 public:
28   PNaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
29       : TargetInfo(Triple) {
30     this->LongAlign = 32;
31     this->LongWidth = 32;
32     this->PointerAlign = 32;
33     this->PointerWidth = 32;
34     this->IntMaxType = TargetInfo::SignedLongLong;
35     this->Int64Type = TargetInfo::SignedLongLong;
36     this->DoubleAlign = 64;
37     this->LongDoubleWidth = 64;
38     this->LongDoubleAlign = 64;
39     this->SizeType = TargetInfo::UnsignedInt;
40     this->PtrDiffType = TargetInfo::SignedInt;
41     this->IntPtrType = TargetInfo::SignedInt;
42     this->RegParmMax = 0; // Disallow regparm
43   }
44 
45   void getArchDefines(const LangOptions &Opts, MacroBuilder &Builder) const;
46 
47   void getTargetDefines(const LangOptions &Opts,
48                         MacroBuilder &Builder) const override {
49     getArchDefines(Opts, Builder);
50   }
51 
52   bool hasFeature(StringRef Feature) const override {
53     return Feature == "pnacl";
54   }
55 
56   ArrayRef<Builtin::Info> getTargetBuiltins() const override { return None; }
57 
58   BuiltinVaListKind getBuiltinVaListKind() const override {
59     return TargetInfo::PNaClABIBuiltinVaList;
60   }
61 
62   ArrayRef<const char *> getGCCRegNames() const override;
63 
64   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
65 
66   bool validateAsmConstraint(const char *&Name,
67                              TargetInfo::ConstraintInfo &Info) const override {
68     return false;
69   }
70 
71   const char *getClobbers() const override { return ""; }
72 };
73 
74 // We attempt to use PNaCl (le32) frontend and Mips32EL backend.
75 class LLVM_LIBRARY_VISIBILITY NaClMips32TargetInfo : public MipsTargetInfo {
76 public:
77   NaClMips32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
78       : MipsTargetInfo(Triple, Opts) {}
79 
80   BuiltinVaListKind getBuiltinVaListKind() const override {
81     return TargetInfo::PNaClABIBuiltinVaList;
82   }
83 };
84 } // namespace targets
85 } // namespace clang
86 
87 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
88