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Diffstat (limited to 'include/clang/Basic/Builtins.h')
| -rw-r--r-- | include/clang/Basic/Builtins.h | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/include/clang/Basic/Builtins.h b/include/clang/Basic/Builtins.h deleted file mode 100644 index c0a6af9..0000000 --- a/include/clang/Basic/Builtins.h +++ /dev/null @@ -1,220 +0,0 @@ -//===--- Builtins.h - Builtin function header -------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -/// -/// \file -/// \brief Defines enum values for all the target-independent builtin -/// functions. -/// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CLANG_BASIC_BUILTINS_H -#define LLVM_CLANG_BASIC_BUILTINS_H - -#include "llvm/ADT/ArrayRef.h" -#include <cstring> - -// VC++ defines 'alloca' as an object-like macro, which interferes with our -// builtins. -#undef alloca - -namespace clang { -class TargetInfo; -class IdentifierTable; -class ASTContext; -class QualType; -class LangOptions; - -enum LanguageID { - GNU_LANG = 0x1, // builtin requires GNU mode. - C_LANG = 0x2, // builtin for c only. - CXX_LANG = 0x4, // builtin for cplusplus only. - OBJC_LANG = 0x8, // builtin for objective-c and objective-c++ - MS_LANG = 0x10, // builtin requires MS mode. - ALL_LANGUAGES = C_LANG | CXX_LANG | OBJC_LANG, // builtin for all languages. - ALL_GNU_LANGUAGES = ALL_LANGUAGES | GNU_LANG, // builtin requires GNU mode. - ALL_MS_LANGUAGES = ALL_LANGUAGES | MS_LANG // builtin requires MS mode. -}; - -namespace Builtin { -enum ID { - NotBuiltin = 0, // This is not a builtin function. -#define BUILTIN(ID, TYPE, ATTRS) BI##ID, -#include "clang/Basic/Builtins.def" - FirstTSBuiltin -}; - -struct Info { - const char *Name, *Type, *Attributes, *HeaderName; - LanguageID Langs; - const char *Features; -}; - -/// \brief Holds information about both target-independent and -/// target-specific builtins, allowing easy queries by clients. -/// -/// Builtins from an optional auxiliary target are stored in -/// AuxTSRecords. Their IDs are shifted up by TSRecords.size() and need to -/// be translated back with getAuxBuiltinID() before use. -class Context { - llvm::ArrayRef<Info> TSRecords; - llvm::ArrayRef<Info> AuxTSRecords; - -public: - Context() {} - - /// \brief Perform target-specific initialization - /// \param AuxTarget Target info to incorporate builtins from. May be nullptr. - void InitializeTarget(const TargetInfo &Target, const TargetInfo *AuxTarget); - - /// \brief Mark the identifiers for all the builtins with their - /// appropriate builtin ID # and mark any non-portable builtin identifiers as - /// such. - void initializeBuiltins(IdentifierTable &Table, const LangOptions& LangOpts); - - /// \brief Return the identifier name for the specified builtin, - /// e.g. "__builtin_abs". - const char *getName(unsigned ID) const { - return getRecord(ID).Name; - } - - /// \brief Get the type descriptor string for the specified builtin. - const char *getTypeString(unsigned ID) const { - return getRecord(ID).Type; - } - - /// \brief Return true if this function is a target-specific builtin - bool isTSBuiltin(unsigned ID) const { - return ID >= Builtin::FirstTSBuiltin; - } - - /// \brief Return true if this function has no side effects and doesn't - /// read memory. - bool isConst(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'c') != nullptr; - } - - /// \brief Return true if we know this builtin never throws an exception. - bool isNoThrow(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'n') != nullptr; - } - - /// \brief Return true if we know this builtin never returns. - bool isNoReturn(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'r') != nullptr; - } - - /// \brief Return true if we know this builtin can return twice. - bool isReturnsTwice(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'j') != nullptr; - } - - /// \brief Returns true if this builtin does not perform the side-effects - /// of its arguments. - bool isUnevaluated(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'u') != nullptr; - } - - /// \brief Return true if this is a builtin for a libc/libm function, - /// with a "__builtin_" prefix (e.g. __builtin_abs). - bool isLibFunction(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'F') != nullptr; - } - - /// \brief Determines whether this builtin is a predefined libc/libm - /// function, such as "malloc", where we know the signature a - /// priori. - bool isPredefinedLibFunction(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'f') != nullptr; - } - - /// \brief Determines whether this builtin is a predefined compiler-rt/libgcc - /// function, such as "__clear_cache", where we know the signature a - /// priori. - bool isPredefinedRuntimeFunction(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'i') != nullptr; - } - - /// \brief Determines whether this builtin has custom typechecking. - bool hasCustomTypechecking(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 't') != nullptr; - } - - /// \brief Determines whether this builtin has a result or any arguments which - /// are pointer types. - bool hasPtrArgsOrResult(unsigned ID) const { - return strchr(getRecord(ID).Type, '*') != nullptr; - } - - /// \brief Completely forget that the given ID was ever considered a builtin, - /// e.g., because the user provided a conflicting signature. - void forgetBuiltin(unsigned ID, IdentifierTable &Table); - - /// \brief If this is a library function that comes from a specific - /// header, retrieve that header name. - const char *getHeaderName(unsigned ID) const { - return getRecord(ID).HeaderName; - } - - /// \brief Determine whether this builtin is like printf in its - /// formatting rules and, if so, set the index to the format string - /// argument and whether this function as a va_list argument. - bool isPrintfLike(unsigned ID, unsigned &FormatIdx, bool &HasVAListArg); - - /// \brief Determine whether this builtin is like scanf in its - /// formatting rules and, if so, set the index to the format string - /// argument and whether this function as a va_list argument. - bool isScanfLike(unsigned ID, unsigned &FormatIdx, bool &HasVAListArg); - - /// \brief Return true if this function has no side effects and doesn't - /// read memory, except for possibly errno. - /// - /// Such functions can be const when the MathErrno lang option is disabled. - bool isConstWithoutErrno(unsigned ID) const { - return strchr(getRecord(ID).Attributes, 'e') != nullptr; - } - - const char *getRequiredFeatures(unsigned ID) const { - return getRecord(ID).Features; - } - - /// \brief Return true if builtin ID belongs to AuxTarget. - bool isAuxBuiltinID(unsigned ID) const { - return ID >= (Builtin::FirstTSBuiltin + TSRecords.size()); - } - - /// Return real buitin ID (i.e. ID it would have furing compilation - /// for AuxTarget). - unsigned getAuxBuiltinID(unsigned ID) const { return ID - TSRecords.size(); } - - /// Returns true if this is a libc/libm function without the '__builtin_' - /// prefix. - static bool isBuiltinFunc(const char *Name); - -private: - const Info &getRecord(unsigned ID) const; - - /// \brief Is this builtin supported according to the given language options? - bool builtinIsSupported(const Builtin::Info &BuiltinInfo, - const LangOptions &LangOpts); - - /// \brief Helper function for isPrintfLike and isScanfLike. - bool isLike(unsigned ID, unsigned &FormatIdx, bool &HasVAListArg, - const char *Fmt) const; -}; - -} - -/// \brief Kinds of BuiltinTemplateDecl. -enum BuiltinTemplateKind : int { - /// \brief This names the __make_integer_seq BuiltinTemplateDecl. - BTK__make_integer_seq -}; - -} // end namespace clang -#endif |
