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Diffstat (limited to 'lib/Target/PIC16/PIC16ABINames.h')
| -rw-r--r-- | lib/Target/PIC16/PIC16ABINames.h | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/lib/Target/PIC16/PIC16ABINames.h b/lib/Target/PIC16/PIC16ABINames.h deleted file mode 100644 index 4c1a8da..0000000 --- a/lib/Target/PIC16/PIC16ABINames.h +++ /dev/null @@ -1,399 +0,0 @@ -//===-- PIC16ABINames.h - PIC16 Naming conventios for ABI----- --*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file contains the functions to manage ABI Naming conventions for PIC16. -// -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_TARGET_PIC16ABINAMES_H -#define LLVM_TARGET_PIC16ABINAMES_H - -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Target/TargetMachine.h" -#include <cassert> -#include <sstream> -#include <cstring> -#include <string> - -namespace llvm { - class PIC16TargetMachine; - class FunctionPass; - class MachineCodeEmitter; - class formatted_raw_ostream; - - // A Central class to manage all ABI naming conventions. - // PAN - [P]ic16 [A]BI [N]ames - class PAN { - public: - // Map the name of the symbol to its section name. - // Current ABI: - // ----------------------------------------------------- - // ALL Names are prefixed with the symobl '@'. - // ------------------------------------------------------ - // Global variables do not have any '.' in their names. - // These are maily function names and global variable names. - // Example - @foo, @i - // Static local variables - @<func>.<var> - // ------------------------------------------------------- - // Functions and auto variables. - // Names are mangled as <prefix><funcname>.<tag>.<varname> - // Where <prefix> is '@' and <tag> is any one of - // the following - // .auto. - an automatic var of a function. - // .temp. - temproray data of a function. - // .ret. - return value label for a function. - // .frame. - Frame label for a function where retval, args - // and temps are stored. - // .args. - Label used to pass arguments to a direct call. - // Example - Function name: @foo - // Its frame: @foo.frame. - // Its retval: @foo.ret. - // Its local vars: @foo.auto.a - // Its temp data: @foo.temp. - // Its arg passing: @foo.args. - //---------------------------------------------- - // Libcall - compiler generated libcall names must start with .lib. - // This id will be used to emit extern decls for libcalls. - // Example - libcall name: @.lib.sra.i8 - // To pass args: @.lib.sra.i8.args. - // To return val: @.lib.sra.i8.ret. - //---------------------------------------------- - // SECTION Names - // uninitialized globals - @udata.<num>.# - // initialized globals - @idata.<num>.# - // Program memory data - @romdata.# - // Variables with user defined section name - <user_defined_section> - // Variables with user defined address - @<var>.user_section.<address>.# - // Function frame - @<func>.frame_section. - // Function autos - @<func>.autos_section. - // Overlay sections - @<color>.## - // Declarations - Enclosed in comments. No section for them. - //---------------------------------------------------------- - - // Tags used to mangle different names. - enum TAGS { - PREFIX_SYMBOL, - GLOBAL, - STATIC_LOCAL, - AUTOS_LABEL, - FRAME_LABEL, - RET_LABEL, - ARGS_LABEL, - TEMPS_LABEL, - - LIBCALL, - - FRAME_SECTION, - AUTOS_SECTION, - CODE_SECTION, - USER_SECTION - }; - - // Textual names of the tags. - inline static const char *getTagName(TAGS tag) { - switch (tag) { - default: return ""; - case PREFIX_SYMBOL: return "@"; - case AUTOS_LABEL: return ".auto."; - case FRAME_LABEL: return ".frame."; - case TEMPS_LABEL: return ".temp."; - case ARGS_LABEL: return ".args."; - case RET_LABEL: return ".ret."; - case LIBCALL: return ".lib."; - case FRAME_SECTION: return ".frame_section."; - case AUTOS_SECTION: return ".autos_section."; - case CODE_SECTION: return ".code_section."; - case USER_SECTION: return ".user_section."; - } - } - - // Get tag type for the Symbol. - inline static TAGS getSymbolTag(const std::string &Sym) { - if (Sym.find(getTagName(TEMPS_LABEL)) != std::string::npos) - return TEMPS_LABEL; - - if (Sym.find(getTagName(FRAME_LABEL)) != std::string::npos) - return FRAME_LABEL; - - if (Sym.find(getTagName(RET_LABEL)) != std::string::npos) - return RET_LABEL; - - if (Sym.find(getTagName(ARGS_LABEL)) != std::string::npos) - return ARGS_LABEL; - - if (Sym.find(getTagName(AUTOS_LABEL)) != std::string::npos) - return AUTOS_LABEL; - - if (Sym.find(getTagName(LIBCALL)) != std::string::npos) - return LIBCALL; - - // It does not have any Tag. So its a true global or static local. - if (Sym.find(".") == std::string::npos) - return GLOBAL; - - // If a . is there, then it may be static local. - // We should mangle these as well in clang. - if (Sym.find(".") != std::string::npos) - return STATIC_LOCAL; - - assert (0 && "Could not determine Symbol's tag"); - return PREFIX_SYMBOL; // Silence warning when assertions are turned off. - } - - // addPrefix - add prefix symbol to a name if there isn't one already. - inline static std::string addPrefix (const std::string &Name) { - std::string prefix = getTagName (PREFIX_SYMBOL); - - // If this name already has a prefix, nothing to do. - if (Name.compare(0, prefix.size(), prefix) == 0) - return Name; - - return prefix + Name; - } - - // Get mangled func name from a mangled sym name. - // In all cases func name is the first component before a '.'. - static inline std::string getFuncNameForSym(const std::string &Sym1) { - assert (getSymbolTag(Sym1) != GLOBAL && "not belongs to a function"); - - std::string Sym = addPrefix(Sym1); - - // Position of the . after func name. That's where func name ends. - size_t func_name_end = Sym.find ('.'); - - return Sym.substr (0, func_name_end); - } - - // Get Frame start label for a func. - static std::string getFrameLabel(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(FRAME_LABEL); - return Func1 + tag; - } - - // Get the retval label for the given function. - static std::string getRetvalLabel(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(RET_LABEL); - return Func1 + tag; - } - - // Get the argument label for the given function. - static std::string getArgsLabel(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(ARGS_LABEL); - return Func1 + tag; - } - - // Get the tempdata label for the given function. - static std::string getTempdataLabel(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(TEMPS_LABEL); - return Func1 + tag; - } - - static std::string getFrameSectionName(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(FRAME_SECTION); - return Func1 + tag + "#"; - } - - static std::string getAutosSectionName(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(AUTOS_SECTION); - return Func1 + tag + "#"; - } - - static std::string getCodeSectionName(const std::string &Func) { - std::string Func1 = addPrefix(Func); - std::string tag = getTagName(CODE_SECTION); - return Func1 + tag + "#"; - } - - static std::string getUserSectionName(const std::string &Name) { - std::string sname = addPrefix(Name);; - std::string tag = getTagName(USER_SECTION); - return sname + tag + "#"; - } - - // udata, romdata and idata section names are generated by a given number. - // @udata.<num>.# - static std::string getUdataSectionName(unsigned num, - std::string prefix = "") { - std::ostringstream o; - o << getTagName(PREFIX_SYMBOL) << prefix << "udata." << num - << ".#"; - return o.str(); - } - - static std::string getRomdataSectionName() { - return "romdata.#"; - } - - static std::string getSharedUDataSectionName() { - std::ostringstream o; - o << getTagName(PREFIX_SYMBOL) << "udata_shr" << ".#"; - return o.str(); - } - - static std::string getRomdataSectionName(unsigned num, - std::string prefix = "") { - std::ostringstream o; - o << getTagName(PREFIX_SYMBOL) << prefix << "romdata." << num - << ".#"; - return o.str(); - } - - static std::string getIdataSectionName(unsigned num, - std::string prefix = "") { - std::ostringstream o; - o << getTagName(PREFIX_SYMBOL) << prefix << "idata." << num - << ".#"; - return o.str(); - } - - inline static bool isLocalName (const std::string &Name) { - if (getSymbolTag(Name) == AUTOS_LABEL) - return true; - - return false; - } - - - inline static bool isMemIntrinsic (const std::string &Name) { - if (Name.compare("@memcpy") == 0 || Name.compare("@memset") == 0 || - Name.compare("@memmove") == 0) { - return true; - } - - return false; - } - - // Currently names of libcalls are assigned during TargetLowering - // object construction. There is no provision to change the when the - // code for a function IL function being generated. - // So we have to change these names while printing assembly. - // We need to do that mainly for names related to intrinsics. This - // function returns true if a name needs to be cloned. - inline static bool isIntrinsicStuff(const std::string &Name) { - // Return true if the name contains LIBCALL marker, or a MemIntrinisc. - // these are mainly ARGS_LABEL, RET_LABEL, and the LIBCALL name itself. - if ((Name.find(getTagName(LIBCALL)) != std::string::npos) - || isMemIntrinsic(Name)) - return true; - - return false; - } - - // Rename the name for IL. - inline static std::string Rename(const std::string &Name) { - std::string Newname; - // If its a label (LIBCALL+Func+LABEL), change it to - // (LIBCALL+Func+IL+LABEL). - TAGS id = getSymbolTag(Name); - if (id == ARGS_LABEL || id == RET_LABEL) { - std::size_t pos = Name.find(getTagName(id)); - Newname = Name.substr(0, pos) + ".IL" + getTagName(id); - return Newname; - } - - // Else, just append IL to name. - return Name + ".IL"; - } - - - - - inline static bool isLocalToFunc (std::string &Func, std::string &Var) { - if (! isLocalName(Var)) return false; - - std::string Func1 = addPrefix(Func); - // Extract func name of the varilable. - const std::string &fname = getFuncNameForSym(Var); - - if (fname.compare(Func1) == 0) - return true; - - return false; - } - - - // Get the section for the given external symbol names. - // This tries to find the type (Tag) of the symbol from its mangled name - // and return appropriate section name for it. - static inline std::string getSectionNameForSym(const std::string &Sym1) { - std::string Sym = addPrefix(Sym1); - - std::string SectionName; - - std::string Fname = getFuncNameForSym (Sym); - TAGS id = getSymbolTag (Sym); - - switch (id) { - default : assert (0 && "Could not determine external symbol type"); - case FRAME_LABEL: - case RET_LABEL: - case TEMPS_LABEL: - case ARGS_LABEL: { - return getFrameSectionName(Fname); - } - case AUTOS_LABEL: { - return getAutosSectionName(Fname); - } - } - } - - /// Return Overlay Name for the section. - /// The ABI Convention is: @<Color>.##.<section_tag> - /// The section_tag is retrieved from the SectName parameter and - /// and Color is passed in parameter. - static inline std::string getOverlayName(std::string SectName, int Color) { - // FIXME: Only autos_section and frame_section are colored. - // So check and assert if the passed SectName does not have AUTOS_SECTION - // or FRAME_SECTION tag in it. - std::ostringstream o; - o << getTagName(PREFIX_SYMBOL) << Color << ".##" - << SectName.substr(SectName.find(".")); - - return o.str(); - } - - // Return true if the current function is an ISR - inline static bool isISR(const std::string SectName) { - if (SectName.find("interrupt") != std::string::npos) - return true; - - return false; - } - - // Return the address for ISR starts in rom. - inline static std::string getISRAddr(void) { - return "0x4"; - } - - // Returns the name of clone of a function. - static std::string getCloneFnName(const std::string &Func) { - return (Func + ".IL"); - } - - // Returns the name of clone of a variable. - static std::string getCloneVarName(const std::string &Fn, - const std::string &Var) { - std::string cloneVarName = Var; - // These vars are named like fun.auto.var. - // Just replace the function name, with clone function name. - std::string cloneFnName = getCloneFnName(Fn); - cloneVarName.replace(cloneVarName.find(Fn), Fn.length(), cloneFnName); - return cloneVarName; - } - }; // class PAN. -} // end namespace llvm; - -#endif |
