//===- Base.td - LLVMC toolchain descriptions --------------*- tablegen -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains compilation graph description used by llvmc.
//
//===----------------------------------------------------------------------===//

// Options

def OptList : OptionList<[
 (switch_option "emit-llvm",
    (help "Emit LLVM .ll files instead of native object files")),
 (switch_option "E",
    (help "Stop after the preprocessing stage, do not run the compiler")),
 (switch_option "fsyntax-only",
    (help "Stop after checking the input for syntax errors")),
 (switch_option "opt",
    (help "Enable opt")),
 (switch_option "O0",
    (help "Turn off optimization"), (zero_or_more)),
 (switch_option "O1",
    (help "Optimization level 1"), (zero_or_more)),
 (switch_option "O2",
    (help "Optimization level 2"), (zero_or_more)),
 (switch_option "O3",
    (help "Optimization level 3"), (zero_or_more)),
 (switch_option "S",
    (help "Stop after compilation, do not assemble")),
 (switch_option "c",
    (help "Compile and assemble, but do not link")),
 (switch_option "m32",
    (help "Generate code for a 32-bit environment"), (hidden)),
 (switch_option "m64",
    (help "Generate code for a 64-bit environment"), (hidden)),
 (switch_option "fPIC",
    (help "Relocation model: PIC"), (hidden)),
 (switch_option "mdynamic-no-pic",
    (help "Relocation model: dynamic-no-pic"), (hidden)),
 (parameter_option "linker",
    (help "Choose linker (possible values: gcc, g++)")),
 (parameter_option "mtune",
    (help "Target a specific CPU type"), (forward_not_split)),
 (parameter_list_option "march",
    (help "Generate code for the specified machine type")),
 (parameter_option "mcpu",
    (help "A deprecated synonym for -mtune"), (hidden), (forward_not_split)),
 (parameter_option "mfpu",
    (help "Specify type of floating point unit"),
    (hidden), (forward_not_split)),
 (parameter_option "mabi",
    (help "Generate code for the specified ABI"), (hidden)),
 (parameter_option "mfloat-abi",
    (help "Specifies which floating-point ABI to use"), (hidden)),
 (switch_option "mfix-and-continue",
    (help "Needed by gdb to load .o files dynamically"), (hidden)),
 (parameter_option "MF",
    (help "Specify a file to write dependencies to"), (hidden)),
 (parameter_list_option "MT",
    (help "Change the name of the rule emitted by dependency generation"),
    (hidden)),
 (parameter_list_option "include",
    (help "Include the named file prior to preprocessing")),
 (parameter_list_option "iquote",
    (help "Search dir only for files requested with #inlcude \"file\""),
    (hidden)),
 (prefix_list_option "I",
    (help "Add a directory to include path")),
 (prefix_list_option "D",
    (help "Define a macro")),
 (parameter_list_option "Xpreprocessor", (hidden),
    (help "Pass options to preprocessor")),
 (prefix_list_option "Wa,", (comma_separated),
    (help "Pass options to assembler")),
 (parameter_list_option "Xassembler", (hidden),
    (help "Pass options to assembler")),
 (prefix_list_option "Wllc,", (comma_separated),
    (help "Pass options to llc")),
 (prefix_list_option "Wl,",
    (help "Pass options to linker")),
 (parameter_list_option "Xlinker", (hidden),
    (help "Pass options to linker")),
 (prefix_list_option "Wo,", (comma_separated),
    (help "Pass options to opt")),
 (prefix_list_option "m",
     (help "Enable or disable various extensions (-mmmx, -msse, etc.)"),
     (hidden))
]>;

def LinkerOptList : OptionList<[
 (prefix_list_option "L",
    (help "Add a directory to link path")),
 (prefix_list_option "l",
    (help "Search a library when linking")),
 (parameter_option "filelist", (hidden),
    (help "Link the files listed in file")),
 (switch_option "nostartfiles",
    (help "Do not use the standard system startup files when linking"),
    (hidden)),
 (switch_option "nodefaultlibs",
    (help "Do not use the standard system libraries when linking"), (hidden)),
 (switch_option "nostdlib",
    (help
    "Do not use the standard system startup files or libraries when linking"),
    (hidden)),
 (switch_option "pie",
     (help "Produce a position independent executable"), (hidden)),
 (switch_option "rdynamic",
     (help "Add all symbols to the dynamic export table"), (hidden)),
 (switch_option "s",
    (help "Strip all symbols"), (hidden)),
 (switch_option "static",
     (help "Do not link against shared libraries"), (hidden)),
 (switch_option "static-libgcc",
     (help "Use static libgcc"), (hidden)),
 (switch_option "shared",
     (help "Create a DLL instead of the regular executable")),
 (switch_option "shared-libgcc",
     (help "Use shared libgcc"), (hidden)),
 (parameter_option "T",
     (help "Read linker script"), (hidden)),
 (parameter_option "u",
     (help "Start with undefined reference to SYMBOL"), (hidden)),
 (switch_option "pthread",
    (help "Enable threads")),

 // TODO: Add a conditional compilation mechanism to make Darwin-only options
 // like '-arch' really Darwin-only.
 (parameter_option "arch",
    (help "Compile for the specified target architecture"), (hidden)),
 (prefix_list_option "F",
    (help "Add a directory to framework search path")),
 (parameter_list_option "framework",
    (help "Specifies a framework to link against")),
 (parameter_list_option "weak_framework",
    (help "Specifies a framework to weakly link against"), (hidden)),
 (switch_option "dynamiclib", (hidden),
     (help "Produce a dynamic library")),
 (switch_option "prebind", (hidden),
     (help "Prebind all undefined symbols")),
 (switch_option "dead_strip", (hidden),
     (help "Remove unreachable blocks of code")),
 (switch_option "single_module", (hidden),
     (help "Build the library so it contains only one module")),
 (parameter_option "install_name", (hidden),
     (help "File name the library will be installed in")),
 (parameter_option "compatibility_version", (hidden),
     (help "Compatibility version number")),
 (parameter_option "current_version", (hidden),
     (help "Current version number"))
]>;

// Option preprocessor.

def Preprocess : OptionPreprocessor<
(case (not (any_switch_on "O0", "O1", "O2", "O3")),
           (set_option "O2"),
      (and (switch_on "O3"), (any_switch_on "O0", "O1", "O2")),
           (unset_option "O0", "O1", "O2"),
      (and (switch_on "O2"), (any_switch_on "O0", "O1")),
           (unset_option "O0", "O1"),
      (switch_on "O1", "O0"),
           (unset_option "O0"))
>;

// Tools

class llvm_gcc_based <string cmd, string in_lang, string E_ext, dag out_lang,
                      string out_ext> : Tool<
[(in_language in_lang),
 out_lang,
 (output_suffix out_ext),
 (command cmd),
 (actions
     (case
         (and (not_empty "o"),
              (multiple_input_files), (or (switch_on "S"), (switch_on "c"))),
              (error "cannot specify -o with -c or -S with multiple files"),
         (switch_on "E"),
              [(forward "E"), (stop_compilation), (output_suffix E_ext)],
         (and (switch_on "E"), (empty "o")), (no_out_file),

         // ('-emit-llvm') && !('opt') -> stop compilation
         (and (switch_on "emit-llvm"), (not (switch_on "opt"))),
              (stop_compilation),
         // ('-S' && '-emit-llvm') && !('opt') -> output .ll
         (and (switch_on "emit-llvm", "S"), (not (switch_on "opt"))),
              [(forward "S"), (output_suffix "ll")],
         // Usually just output .bc
         (not (switch_on "fsyntax-only")),
              [(append_cmd "-c"), (append_cmd "-emit-llvm")],

         // -fsyntax-only
         (switch_on "fsyntax-only"), [(forward "fsyntax-only"),
                                      (no_out_file), (stop_compilation)],

         // Forwards
         (not_empty "Xpreprocessor"), (forward "Xpreprocessor"),
         (not_empty "include"), (forward "include"),
         (not_empty "iquote"), (forward "iquote"),
         (not_empty "save-temps"), (append_cmd "-save-temps"),
         (not_empty "I"), (forward "I"),
         (not_empty "F"), (forward "F"),
         (not_empty "D"), (forward "D"),
         (not_empty "arch"), (forward "arch"),
         (not_empty "march"), (forward "march"),
         (not_empty "mcpu"), (forward "mcpu"),
         (not_empty "mtune"), (forward "mtune"),
         (not_empty "mfpu"), (forward "mfpu"),
         (not_empty "mabi"), (forward "mabi"),
         (not_empty "mfloat-abi"), (forward "mfloat-abi"),
         (not_empty "m"), (forward "m"),
         (switch_on "mfix-and-continue"), (forward "mfix-and-continue"),
         (switch_on "m32"), (forward "m32"),
         (switch_on "m64"), (forward "m64"),
         (switch_on "O0"), (forward "O0"),
         (switch_on "O1"), (forward "O1"),
         (switch_on "O2"), (forward "O2"),
         (switch_on "O3"), (forward "O3"),
         (switch_on "fPIC"), (forward "fPIC"),
         (switch_on "mdynamic-no-pic"), (forward "mdynamic-no-pic"),
         (not_empty "MF"), (forward "MF"),
         (not_empty "MT"), (forward "MT"))),
 (sink)
]>;

class llvm_gcc_comp_based <string cmd, string in_lang, string E_ext>
: llvm_gcc_based<cmd, in_lang, E_ext,
  (out_language "llvm-bitcode", "object-code"), "bc">;

class llvm_gcc_pch_based <string cmd, string in_lang, string E_ext>
: llvm_gcc_based<cmd, in_lang, E_ext,
  (out_language "precompiled-header"), "gch">;

def llvm_gcc_c : llvm_gcc_comp_based
    <"@LLVMGCCCOMMAND@ -x c", "c", "i">;
def llvm_gcc_cpp : llvm_gcc_comp_based
    <"@LLVMGXXCOMMAND@ -x c++", "c++", "i">;
def llvm_gcc_m : llvm_gcc_comp_based
    <"@LLVMGCCCOMMAND@ -x objective-c", "objective-c", "mi">;
def llvm_gcc_mxx : llvm_gcc_comp_based
    <"@LLVMGCCCOMMAND@ -x objective-c++", "objective-c++", "mi">;

def llvm_gcc_c_pch : llvm_gcc_pch_based
    <"@LLVMGCCCOMMAND@ -x c-header", "c-header", "i">;
def llvm_gcc_cpp_pch : llvm_gcc_pch_based
    <"@LLVMGXXCOMMAND@ -x c++-header", "c++-header", "i">;
def llvm_gcc_m_pch : llvm_gcc_pch_based
    <"@LLVMGCCCOMMAND@ -x objective-c-header", "objective-c-header", "mi">;
def llvm_gcc_mxx_pch : llvm_gcc_pch_based
    <"@LLVMGCCCOMMAND@ -x objective-c++-header", "objective-c++-header", "mi">;

def opt : Tool<
[(in_language "llvm-bitcode"),
 (out_language "llvm-bitcode"),
 (output_suffix "opt.bc"),
 (actions (case (switch_on "emit-llvm"), (stop_compilation),
                (switch_on "emit-llvm", "S"),
                [(append_cmd "-S"), (output_suffix "ll")],
                (not_empty "Wo,"), (forward_value "Wo,"),
                (switch_on "O1"), (forward "O1"),
                (switch_on "O2"), (forward "O2"),
                (switch_on "O3"), (forward "O3"))),
 (command "opt -f")
]>;

def llvm_as : Tool<
[(in_language "llvm-assembler"),
 (out_language "llvm-bitcode"),
 (output_suffix "bc"),
 (command "llvm-as"),
 (actions (case (and (switch_on "emit-llvm"), (not (switch_on "opt"))),
                (stop_compilation)))
]>;

def llvm_gcc_assembler : Tool<
[(in_language "assembler"),
 (out_language "object-code"),
 (output_suffix "o"),
 (command "@LLVMGCCCOMMAND@ -c -x assembler"),
 (actions (case
          (switch_on "c"), (stop_compilation),
          (not_empty "arch"), (forward "arch"),
          (not_empty "Xassembler"), (forward "Xassembler"),
          (not_empty "march"), (forward "march"),
          (not_empty "mcpu"), (forward "mcpu"),
          (not_empty "mtune"), (forward "mtune"),
          (not_empty "mabi"), (forward "mabi"),
          (not_empty "mfloat-abi"), (forward "mfloat-abi"),
          (switch_on "m32"), (forward "m32"),
          (switch_on "m64"), (forward "m64"),
          (not_empty "Wa,"), (forward "Wa,")))
]>;

def llc : Tool<
[(in_language "llvm-bitcode", "llvm-assembler"),
 (out_language "assembler"),
 (output_suffix "s"),
 (command "llc -disable-cfi"),
 (actions (case
          (switch_on "S"), (stop_compilation),
          (switch_on "O0"), (forward "O0"),
          (switch_on "O1"), (forward "O1"),
          (switch_on "O2"), (forward "O2"),
          (switch_on "O3"), (forward "O3"),
          (switch_on "fPIC"), (append_cmd "-relocation-model=pic"),
          (switch_on "mdynamic-no-pic"),
                     (append_cmd "-relocation-model=dynamic-no-pic"),
          (not_empty "march"), (forward_transformed_value
                                "march", "ConvertMArchToMAttr"),
          (not_empty "mcpu"), (forward_transformed_value "mcpu", "ConvertMCpu"),
          (and (not_empty "mtune"), (empty "mcpu")),
                     (forward_as "mtune", "-mcpu"),
          (not_empty "mfpu"), (forward_transformed_value "mfpu", "ConvertMFpu"),
          (not_empty "m"), (forward_transformed_value "m", "ConvertToMAttr"),
          (not_empty "Wllc,"), (forward_value "Wllc,")))
]>;

// Base class for linkers
class llvm_gcc_based_linker <string cmd, dag on_empty> : Tool<
[(in_language "object-code", "static-library", "dynamic-library"),
 (out_language "executable"),
 (output_suffix "out"),
 (command cmd),
 (works_on_empty (case (and (not_empty "filelist"), on_empty), true,
                       (default), false)),
 (join),
 (actions (case
          (switch_on "pthread"), (append_cmd "-lpthread"),
          (not_empty "L"), (forward "L"),
          (not_empty "F"), (forward "F"),
          (not_empty "arch"), (forward "arch"),
          (not_empty "framework"), (forward "framework"),
          (not_empty "weak_framework"), (forward "weak_framework"),
          (not_empty "filelist"), (forward "filelist"),
          (not_empty "march"), (forward "march"),
          (not_empty "mcpu"), (forward "mcpu"),
          (not_empty "mtune"), (forward "mtune"),
          (not_empty "mabi"), (forward "mabi"),
          (not_empty "mfloat-abi"), (forward "mfloat-abi"),
          (switch_on "m32"), (forward "m32"),
          (switch_on "m64"), (forward "m64"),
          (not_empty "l"), (forward "l"),
          (not_empty "Xlinker"), (forward "Xlinker"),
          (not_empty "Wl,"), (forward "Wl,"),
          (switch_on "nostartfiles"), (forward "nostartfiles"),
          (switch_on "nodefaultlibs"), (forward "nodefaultlibs"),
          (switch_on "nostdlib"), (forward "nostdlib"),
          (switch_on "pie"), (forward "pie"),
          (switch_on "rdynamic"), (forward "rdynamic"),
          (switch_on "s"), (forward "s"),
          (switch_on "static"), (forward "static"),
          (switch_on "static-libgcc"), (forward "static-libgcc"),
          (switch_on "shared"), (forward "shared"),
          (switch_on "shared-libgcc"), (forward "shared-libgcc"),
          (not_empty "T"), (forward "T"),
          (not_empty "u"), (forward "u"),
          (switch_on "dynamiclib"), (forward "dynamiclib"),
          (switch_on "prebind"), (forward "prebind"),
          (switch_on "dead_strip"), (forward "dead_strip"),
          (switch_on "single_module"), (forward "single_module"),
          (not_empty "compatibility_version"),
                     (forward "compatibility_version"),
          (not_empty "current_version"), (forward "current_version"),
          (not_empty "install_name"), (forward "install_name")))
]>;

// Default linker
def llvm_gcc_linker : llvm_gcc_based_linker<"@LLVMGCCCOMMAND@",
    (not (or (parameter_equals "linker", "g++"),
         (parameter_equals "linker", "c++")))>;
// Alternative linker for C++
def llvm_gcc_cpp_linker : llvm_gcc_based_linker<"@LLVMGXXCOMMAND@",
    (or (parameter_equals "linker", "g++"),
        (parameter_equals "linker", "c++"))>;

// Language map

def LanguageMap : LanguageMap<[
    (lang_to_suffixes "precompiled-header", ["gch", "pch"]),
    (lang_to_suffixes "c++", ["cc", "cp", "cxx", "cpp", "CPP", "c++", "C"]),
    (lang_to_suffixes "c++-header", "hpp"),
    (lang_to_suffixes "c", "c"),
    (lang_to_suffixes "c-header", "h"),
    (lang_to_suffixes "c-cpp-output", "i"),
    (lang_to_suffixes "objective-c-cpp-output", "mi"),
    (lang_to_suffixes "objective-c++", "mm"),
    (lang_to_suffixes "objective-c++-header", "hmm"),
    (lang_to_suffixes "objective-c", "m"),
    (lang_to_suffixes "objective-c-header", "hm"),
    (lang_to_suffixes "assembler", "s"),
    (lang_to_suffixes "assembler-with-cpp", "S"),
    (lang_to_suffixes "llvm-assembler", "ll"),
    (lang_to_suffixes "llvm-bitcode", "bc"),
    (lang_to_suffixes "object-code", ["o", "*empty*"]),
    (lang_to_suffixes "static-library", ["a", "lib"]),
    (lang_to_suffixes "dynamic-library", ["so", "dylib", "dll"]),
    (lang_to_suffixes "executable", "out")
]>;

// Compilation graph

def CompilationGraph : CompilationGraph<[
    (edge "root", "llvm_gcc_c"),
    (edge "root", "llvm_gcc_assembler"),
    (edge "root", "llvm_gcc_cpp"),
    (edge "root", "llvm_gcc_m"),
    (edge "root", "llvm_gcc_mxx"),
    (edge "root", "llc"),

    (edge "root", "llvm_gcc_c_pch"),
    (edge "root", "llvm_gcc_cpp_pch"),
    (edge "root", "llvm_gcc_m_pch"),
    (edge "root", "llvm_gcc_mxx_pch"),

    (edge "llvm_gcc_c", "llc"),
    (edge "llvm_gcc_cpp", "llc"),
    (edge "llvm_gcc_m", "llc"),
    (edge "llvm_gcc_mxx", "llc"),
    (edge "llvm_as", "llc"),

    (optional_edge "root", "llvm_as",
                   (case (or (switch_on "emit-llvm"),
                             (switch_on "opt")), (inc_weight))),
    (optional_edge "llvm_gcc_c", "opt",
                   (case (switch_on "opt"), (inc_weight))),
    (optional_edge "llvm_gcc_cpp", "opt",
                   (case (switch_on "opt"), (inc_weight))),
    (optional_edge "llvm_gcc_m", "opt",
                   (case (switch_on "opt"), (inc_weight))),
    (optional_edge "llvm_gcc_mxx", "opt",
                   (case (switch_on "opt"), (inc_weight))),
    (optional_edge "llvm_as", "opt",
                   (case (switch_on "opt"), (inc_weight))),
    (edge "opt", "llc"),

    (edge "llc", "llvm_gcc_assembler"),
    (edge "llvm_gcc_assembler", "llvm_gcc_linker"),
    (optional_edge "llvm_gcc_assembler", "llvm_gcc_cpp_linker",
                 (case
                     (or (input_languages_contain "c++"),
                         (input_languages_contain "objective-c++")),
                     (inc_weight),
                     (or (parameter_equals "linker", "g++"),
                         (parameter_equals "linker", "c++")), (inc_weight))),


    (edge "root", "llvm_gcc_linker"),
    (optional_edge "root", "llvm_gcc_cpp_linker",
                 (case
                     (or (input_languages_contain "c++"),
                         (input_languages_contain "objective-c++")),
                     (inc_weight),
                     (or (parameter_equals "linker", "g++"),
                         (parameter_equals "linker", "c++")), (inc_weight)))
]>;