1 //===--- MSP430.h - Declare MSP430 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 MSP430 TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_MSP430_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_MSP430_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 MSP430TargetInfo : public TargetInfo { 25 static const char *const GCCRegNames[]; 26 27 public: 28 MSP430TargetInfo(const llvm::Triple &Triple, const TargetOptions &) 29 : TargetInfo(Triple) { 30 TLSSupported = false; 31 IntWidth = 16; 32 IntAlign = 16; 33 LongWidth = 32; 34 LongLongWidth = 64; 35 LongAlign = LongLongAlign = 16; 36 FloatWidth = 32; 37 FloatAlign = 16; 38 DoubleWidth = LongDoubleWidth = 64; 39 DoubleAlign = LongDoubleAlign = 16; 40 PointerWidth = 16; 41 PointerAlign = 16; 42 SuitableAlign = 16; 43 SizeType = UnsignedInt; 44 IntMaxType = SignedLongLong; 45 IntPtrType = SignedInt; 46 PtrDiffType = SignedInt; 47 SigAtomicType = SignedLong; 48 resetDataLayout("e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"); 49 } 50 void getTargetDefines(const LangOptions &Opts, 51 MacroBuilder &Builder) const override; 52 53 ArrayRef<Builtin::Info> getTargetBuiltins() const override { 54 // FIXME: Implement. 55 return std::nullopt; 56 } 57 58 bool allowsLargerPreferedTypeAlignment() const override { return false; } 59 60 bool hasFeature(StringRef Feature) const override { 61 return Feature == "msp430"; 62 } 63 64 ArrayRef<const char *> getGCCRegNames() const override; 65 66 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override { 67 // Make r0 - r3 be recognized by llc (f.e., in clobber list) 68 static const TargetInfo::GCCRegAlias GCCRegAliases[] = { 69 {{"r0"}, "pc"}, 70 {{"r1"}, "sp"}, 71 {{"r2"}, "sr"}, 72 {{"r3"}, "cg"}, 73 }; 74 return llvm::ArrayRef(GCCRegAliases); 75 } 76 77 bool validateAsmConstraint(const char *&Name, 78 TargetInfo::ConstraintInfo &info) const override { 79 // FIXME: implement 80 switch (*Name) { 81 case 'K': // the constant 1 82 case 'L': // constant -1^20 .. 1^19 83 case 'M': // constant 1-4: 84 return true; 85 } 86 // No target constraints for now. 87 return false; 88 } 89 90 std::string_view getClobbers() const override { 91 // FIXME: Is this really right? 92 return ""; 93 } 94 95 BuiltinVaListKind getBuiltinVaListKind() const override { 96 // FIXME: implement 97 return TargetInfo::CharPtrBuiltinVaList; 98 } 99 }; 100 101 } // namespace targets 102 } // namespace clang 103 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_MSP430_H 104