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 21 namespace clang { 22 namespace targets { 23 24 class 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 35 public: 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