r373538 - [clang][ifs] Clang Interface Stubs ToolChain plumbing.

Nico Weber via cfe-commits cfe-commits at lists.llvm.org
Wed Oct 2 19:06:27 PDT 2019


It's still failing at trunk.

Please revert, the tree's been broken for 3h by now.

On Wed, Oct 2, 2019 at 10:01 PM Puyan Lotfi <puyan at puyan.org> wrote:

> I committed a change to driver-test.c. Not sure if that fixes it yet. Looks
> like there’s failures in some cmake and tablegen stuff. I will investigate
> macOS this evening.
>
> PL
>
> Sent from ProtonMail Mobile
>
>
> On Wed, Oct 2, 2019 at 6:50 PM, Nico Weber <thakis at chromium.org> wrote:
>
> Looks like it's passing on Linux now, but still failing on macOS:
>
> AIL: Clang :: InterfaceStubs/driver-test.c (6172 of 16012)
> ******************** TEST 'Clang :: InterfaceStubs/driver-test.c' FAILED
> ********************
> Script:
> --
> : 'RUN: at line 3';   /Users/thakis/src/llvm-project/out/gn/bin/clang
> -target x86_64-unknown-linux-gnu -x c -o
> /Users/thakis/src/llvm-project/out/gn/obj/clang/test/InterfaceStubs/Output/
> driver-test.c.tmp1.so -emit-interface-stubs
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/driver-test.c
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/object.c
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/weak.cpp &&
>  llvm-nm
> /Users/thakis/src/llvm-project/out/gn/obj/clang/test/InterfaceStubs/Output/
> driver-test.c.tmp1.so 2>&1 |
> /Users/thakis/src/llvm-project/out/gn/bin/FileCheck
> --check-prefix=CHECK-IFS
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/driver-test.c
> : 'RUN: at line 6';   /Users/thakis/src/llvm-project/out/gn/bin/clang
> -target x86_64-unknown-linux-gnu -x c -o
> /Users/thakis/src/llvm-project/out/gn/obj/clang/test/InterfaceStubs/Output/
> driver-test.c.tmp2.so -shared
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/driver-test.c
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/object.c
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/weak.cpp &&
>  llvm-nm
> /Users/thakis/src/llvm-project/out/gn/obj/clang/test/InterfaceStubs/Output/
> driver-test.c.tmp2.so 2>&1 |
> /Users/thakis/src/llvm-project/out/gn/bin/FileCheck --check-prefix=CHECK-SO
> /Users/thakis/src/llvm-project/clang/test/InterfaceStubs/driver-test.c
> --
> Exit Code: 1
>
> Command Output (stderr):
> --
> ld: unknown option: --eh-frame-hdr
> clang: error: linker command failed with exit code 1 (use -v to see
> invocation)
>
> --
>
> ********************
> Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
> Testing Time: 162.42s
> ********************
> Failing Tests (1):
>     Clang :: InterfaceStubs/driver-test.c
>
> On Wed, Oct 2, 2019 at 8:14 PM Puyan Lotfi <puyan at puyan.org> wrote:
>
>> Looking at this. Sorry for this. I think either the test needs to be
>> restricted for the x86 target or the llvm-ifs tool is not being built with
>> the distribution.
>> PL
>>
>>
>> Sent with ProtonMail <https://protonmail.com> Secure Email.
>>
>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>> On Wednesday, October 2, 2019 7:36 PM, Nico Weber <thakis at chromium.org>
>> wrote:
>>
>> Looks like this broke a bunch of tests:
>>
>>
>> http://lab.llvm.org:8011/builders/clang-cuda-build/builds/37720/steps/ninja%20check%201/logs/FAIL%3A%20Clang%3A%3Aobject.cpp
>>
>> http://lab.llvm.org:8011/builders/clang-cuda-build/builds/37720/steps/ninja%20check%201/logs/FAIL%3A%20Clang%3A%3Adriver-test.c
>>
>> If it takes a while to fix, please revert and investigate async.
>>
>> On Wed, Oct 2, 2019 at 6:47 PM Puyan Lotfi via cfe-commits <
>> cfe-commits at lists.llvm.org> wrote:
>>
>>> Author: zer0
>>> Date: Wed Oct  2 15:50:07 2019
>>> New Revision: 373538
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=373538&view=rev
>>> Log:
>>> [clang][ifs] Clang Interface Stubs ToolChain plumbing.
>>>
>>> This patch enables end to end support for generating ELF interface stubs
>>> directly from clang. Now the following:
>>>
>>> clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp
>>>
>>> will product an ELF binary with visible symbols populated. Visibility
>>> attributes
>>> and -fvisibility can be used to control what gets populated.
>>>
>>> * Adding ToolChain support for clang Driver IFS Merge Phase
>>> * Implementing a default InterfaceStubs Merge clang Tool, used by
>>> ToolChain
>>> * Adds support for the clang Driver to involve llvm-ifs on ifs files.
>>> * Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text
>>> file
>>>   instead of the final object format (normally ELF)
>>>
>>>
>>> Differential Revision: https://reviews.llvm.org/D63978
>>>
>>> Added:
>>>     cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.cpp
>>>     cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.h
>>>     cfe/trunk/test/InterfaceStubs/conflict-type.ifs
>>>     cfe/trunk/test/InterfaceStubs/driver-test.c
>>>     cfe/trunk/test/InterfaceStubs/func.ifs
>>>     cfe/trunk/test/InterfaceStubs/merge-conflict-test.c
>>>     cfe/trunk/test/InterfaceStubs/object-double.c
>>>     cfe/trunk/test/InterfaceStubs/object-float.c
>>>     cfe/trunk/test/InterfaceStubs/object.c
>>>     cfe/trunk/test/InterfaceStubs/object.ifs
>>> Modified:
>>>     cfe/trunk/include/clang/Driver/Action.h
>>>     cfe/trunk/include/clang/Driver/Options.td
>>>     cfe/trunk/include/clang/Driver/Phases.h
>>>     cfe/trunk/include/clang/Driver/ToolChain.h
>>>     cfe/trunk/include/clang/Driver/Types.def
>>>     cfe/trunk/lib/Driver/Action.cpp
>>>     cfe/trunk/lib/Driver/CMakeLists.txt
>>>     cfe/trunk/lib/Driver/Driver.cpp
>>>     cfe/trunk/lib/Driver/Phases.cpp
>>>     cfe/trunk/lib/Driver/ToolChain.cpp
>>>     cfe/trunk/lib/Driver/ToolChains/Clang.cpp
>>>     cfe/trunk/lib/Driver/Types.cpp
>>>     cfe/trunk/lib/Frontend/CompilerInvocation.cpp
>>>     cfe/trunk/test/InterfaceStubs/bad-format.cpp
>>>     cfe/trunk/test/InterfaceStubs/class-template-specialization.cpp
>>>     cfe/trunk/test/InterfaceStubs/externstatic.c
>>>     cfe/trunk/test/InterfaceStubs/function-template-specialization.cpp
>>>     cfe/trunk/test/InterfaceStubs/inline.c
>>>     cfe/trunk/test/InterfaceStubs/template-namespace-function.cpp
>>>     cfe/trunk/test/InterfaceStubs/weak.cpp
>>>     cfe/trunk/test/lit.cfg.py
>>>
>>> Modified: cfe/trunk/include/clang/Driver/Action.h
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Action.h?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/Driver/Action.h (original)
>>> +++ cfe/trunk/include/clang/Driver/Action.h Wed Oct  2 15:50:07 2019
>>> @@ -65,6 +65,7 @@ public:
>>>      BackendJobClass,
>>>      AssembleJobClass,
>>>      LinkJobClass,
>>> +    IfsMergeJobClass,
>>>      LipoJobClass,
>>>      DsymutilJobClass,
>>>      VerifyDebugInfoJobClass,
>>> @@ -485,6 +486,17 @@ public:
>>>    }
>>>  };
>>>
>>> +class IfsMergeJobAction : public JobAction {
>>> +  void anchor() override;
>>> +
>>> +public:
>>> +  IfsMergeJobAction(ActionList &Inputs, types::ID Type);
>>> +
>>> +  static bool classof(const Action *A) {
>>> +    return A->getKind() == IfsMergeJobClass;
>>> +  }
>>> +};
>>> +
>>>  class LinkJobAction : public JobAction {
>>>    void anchor() override;
>>>
>>>
>>> Modified: cfe/trunk/include/clang/Driver/Options.td
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/Driver/Options.td (original)
>>> +++ cfe/trunk/include/clang/Driver/Options.td Wed Oct  2 15:50:07 2019
>>> @@ -633,6 +633,9 @@ def emit_llvm : Flag<["-"], "emit-llvm">
>>>    HelpText<"Use the LLVM representation for assembler and object
>>> files">;
>>>  def emit_iterface_stubs : Flag<["-"], "emit-interface-stubs">,
>>> Flags<[CC1Option]>, Group<Action_Group>,
>>>    HelpText<"Generate Inteface Stub Files.">;
>>> +def emit_merged_ifs : Flag<["-"], "emit-merged-ifs">,
>>> +  Flags<[CC1Option]>, Group<Action_Group>,
>>> +  HelpText<"Generate Interface Stub Files, emit merged text not
>>> binary.">;
>>>  def iterface_stub_version_EQ : JoinedOrSeparate<["-"],
>>> "interface-stub-version=">, Flags<[CC1Option]>;
>>>  def exported__symbols__list : Separate<["-"], "exported_symbols_list">;
>>>  def e : JoinedOrSeparate<["-"], "e">, Group<Link_Group>;
>>>
>>> Modified: cfe/trunk/include/clang/Driver/Phases.h
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Phases.h?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/Driver/Phases.h (original)
>>> +++ cfe/trunk/include/clang/Driver/Phases.h Wed Oct  2 15:50:07 2019
>>> @@ -20,7 +20,8 @@ namespace phases {
>>>      Compile,
>>>      Backend,
>>>      Assemble,
>>> -    Link
>>> +    Link,
>>> +    IfsMerge,
>>>    };
>>>
>>>    enum {
>>>
>>> Modified: cfe/trunk/include/clang/Driver/ToolChain.h
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/ToolChain.h?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/Driver/ToolChain.h (original)
>>> +++ cfe/trunk/include/clang/Driver/ToolChain.h Wed Oct  2 15:50:07 2019
>>> @@ -136,11 +136,13 @@ private:
>>>    mutable std::unique_ptr<Tool> Clang;
>>>    mutable std::unique_ptr<Tool> Assemble;
>>>    mutable std::unique_ptr<Tool> Link;
>>> +  mutable std::unique_ptr<Tool> IfsMerge;
>>>    mutable std::unique_ptr<Tool> OffloadBundler;
>>>
>>>    Tool *getClang() const;
>>>    Tool *getAssemble() const;
>>>    Tool *getLink() const;
>>> +  Tool *getIfsMerge() const;
>>>    Tool *getClangAs() const;
>>>    Tool *getOffloadBundler() const;
>>>
>>>
>>> Modified: cfe/trunk/include/clang/Driver/Types.def
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Types.def?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/Driver/Types.def (original)
>>> +++ cfe/trunk/include/clang/Driver/Types.def Wed Oct  2 15:50:07 2019
>>> @@ -84,7 +84,8 @@ TYPE("lto-bc",                   LTO_BC,
>>>
>>>  // Misc.
>>>  TYPE("ast",                      AST,          INVALID,         "ast",
>>>   phases::Compile, phases::Backend, phases::Assemble, phases::Link)
>>> -TYPE("ifs",                      IFS,          INVALID,         "ifs",
>>>   phases::Compile, phases::Backend, phases::Assemble, phases::Link)
>>> +TYPE("ifs",                      IFS,          INVALID,         "ifs",
>>>   phases::IfsMerge)
>>> +TYPE("ifs-cpp",                  IFS_CPP,      INVALID,         "ifs",
>>>   phases::Compile, phases::IfsMerge)
>>>  TYPE("pcm",                      ModuleFile,   INVALID,         "pcm",
>>>   phases::Compile, phases::Backend, phases::Assemble, phases::Link)
>>>  TYPE("plist",                    Plist,        INVALID,
>>>  "plist",  phases::Compile, phases::Backend, phases::Assemble, phases::Link)
>>>  TYPE("rewritten-objc",           RewrittenObjC,INVALID,         "cpp",
>>>   phases::Compile, phases::Backend, phases::Assemble, phases::Link)
>>>
>>> Modified: cfe/trunk/lib/Driver/Action.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Action.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/Action.cpp (original)
>>> +++ cfe/trunk/lib/Driver/Action.cpp Wed Oct  2 15:50:07 2019
>>> @@ -31,6 +31,7 @@ const char *Action::getClassName(ActionC
>>>    case CompileJobClass: return "compiler";
>>>    case BackendJobClass: return "backend";
>>>    case AssembleJobClass: return "assembler";
>>> +  case IfsMergeJobClass: return "interface-stub-merger";
>>>    case LinkJobClass: return "linker";
>>>    case LipoJobClass: return "lipo";
>>>    case DsymutilJobClass: return "dsymutil";
>>> @@ -357,6 +358,11 @@ void AssembleJobAction::anchor() {}
>>>  AssembleJobAction::AssembleJobAction(Action *Input, types::ID
>>> OutputType)
>>>      : JobAction(AssembleJobClass, Input, OutputType) {}
>>>
>>> +void IfsMergeJobAction::anchor() {}
>>> +
>>> +IfsMergeJobAction::IfsMergeJobAction(ActionList &Inputs, types::ID Type)
>>> +    : JobAction(IfsMergeJobClass, Inputs, Type) {}
>>> +
>>>  void LinkJobAction::anchor() {}
>>>
>>>  LinkJobAction::LinkJobAction(ActionList &Inputs, types::ID Type)
>>>
>>> Modified: cfe/trunk/lib/Driver/CMakeLists.txt
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/CMakeLists.txt?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/CMakeLists.txt (original)
>>> +++ cfe/trunk/lib/Driver/CMakeLists.txt Wed Oct  2 15:50:07 2019
>>> @@ -66,6 +66,7 @@ add_clang_library(clangDriver
>>>    ToolChains/WebAssembly.cpp
>>>    ToolChains/XCore.cpp
>>>    ToolChains/PPCLinux.cpp
>>> +  ToolChains/InterfaceStubs.cpp
>>>    Types.cpp
>>>    XRayArgs.cpp
>>>
>>>
>>> Modified: cfe/trunk/lib/Driver/Driver.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Driver.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/Driver.cpp (original)
>>> +++ cfe/trunk/lib/Driver/Driver.cpp Wed Oct  2 15:50:07 2019
>>> @@ -274,11 +274,11 @@ phases::ID Driver::getFinalPhase(const D
>>>        (PhaseArg = DAL.getLastArg(options::OPT__SLASH_P))) {
>>>      FinalPhase = phases::Preprocess;
>>>
>>> -    // --precompile only runs up to precompilation.
>>> +  // --precompile only runs up to precompilation.
>>>    } else if ((PhaseArg = DAL.getLastArg(options::OPT__precompile))) {
>>>      FinalPhase = phases::Precompile;
>>>
>>> -    // -{fsyntax-only,-analyze,emit-ast} only run up to the compiler.
>>> +  // -{fsyntax-only,-analyze,emit-ast} only run up to the compiler.
>>>    } else if ((PhaseArg = DAL.getLastArg(options::OPT_fsyntax_only)) ||
>>>               (PhaseArg =
>>> DAL.getLastArg(options::OPT_print_supported_cpus)) ||
>>>               (PhaseArg = DAL.getLastArg(options::OPT_module_file_info))
>>> ||
>>> @@ -286,20 +286,23 @@ phases::ID Driver::getFinalPhase(const D
>>>               (PhaseArg = DAL.getLastArg(options::OPT_rewrite_objc)) ||
>>>               (PhaseArg =
>>> DAL.getLastArg(options::OPT_rewrite_legacy_objc)) ||
>>>               (PhaseArg = DAL.getLastArg(options::OPT__migrate)) ||
>>> -             (PhaseArg =
>>> DAL.getLastArg(options::OPT_emit_iterface_stubs)) ||
>>>               (PhaseArg = DAL.getLastArg(options::OPT__analyze)) ||
>>>               (PhaseArg = DAL.getLastArg(options::OPT_emit_ast))) {
>>>      FinalPhase = phases::Compile;
>>>
>>> -    // -S only runs up to the backend.
>>> +  // clang interface stubs
>>> +  } else if ((PhaseArg =
>>> DAL.getLastArg(options::OPT_emit_iterface_stubs))) {
>>> +    FinalPhase = phases::IfsMerge;
>>> +
>>> +  // -S only runs up to the backend.
>>>    } else if ((PhaseArg = DAL.getLastArg(options::OPT_S))) {
>>>      FinalPhase = phases::Backend;
>>>
>>> -    // -c compilation only runs up to the assembler.
>>> +  // -c compilation only runs up to the assembler.
>>>    } else if ((PhaseArg = DAL.getLastArg(options::OPT_c))) {
>>>      FinalPhase = phases::Assemble;
>>>
>>> -    // Otherwise do everything.
>>> +  // Otherwise do everything.
>>>    } else
>>>      FinalPhase = phases::Link;
>>>
>>> @@ -3323,6 +3326,7 @@ void Driver::BuildActions(Compilation &C
>>>    // Construct the actions to perform.
>>>    HeaderModulePrecompileJobAction *HeaderModuleAction = nullptr;
>>>    ActionList LinkerInputs;
>>> +  ActionList MergerInputs;
>>>
>>>    for (auto &I : Inputs) {
>>>      types::ID InputType = I.first;
>>> @@ -3360,6 +3364,17 @@ void Driver::BuildActions(Compilation &C
>>>          break;
>>>        }
>>>
>>> +      // TODO: Consider removing this because the merged may not end up
>>> being
>>> +      // the final Phase in the pipeline. Perhaps the merged could just
>>> merge
>>> +      // and then pass an artifact of some sort to the Link Phase.
>>> +      // Queue merger inputs.
>>> +      if (Phase == phases::IfsMerge) {
>>> +        assert(Phase == PL.back() && "merging must be final compilation
>>> step.");
>>> +        MergerInputs.push_back(Current);
>>> +        Current = nullptr;
>>> +        break;
>>> +      }
>>> +
>>>        // Each precompiled header file after a module file action is a
>>> module
>>>        // header of that same module file, rather than being compiled to
>>> a
>>>        // separate PCH.
>>> @@ -3409,6 +3424,11 @@ void Driver::BuildActions(Compilation &C
>>>      Actions.push_back(LA);
>>>    }
>>>
>>> +  // Add an interface stubs merge action if necessary.
>>> +  if (!MergerInputs.empty())
>>> +    Actions.push_back(
>>> +        C.MakeAction<IfsMergeJobAction>(MergerInputs, types::TY_Image));
>>> +
>>>    // If --print-supported-cpus, -mcpu=? or -mtune=? is specified, build
>>> a custom
>>>    // Compile phase that prints out supported cpu models and quits.
>>>    if (Arg *A = Args.getLastArg(options::OPT_print_supported_cpus)) {
>>> @@ -3445,6 +3465,8 @@ Action *Driver::ConstructPhaseAction(
>>>    switch (Phase) {
>>>    case phases::Link:
>>>      llvm_unreachable("link action invalid here.");
>>> +  case phases::IfsMerge:
>>> +    llvm_unreachable("ifsmerge action invalid here.");
>>>    case phases::Preprocess: {
>>>      types::ID OutputTy;
>>>      // -M and -MM specify the dependency file name by altering the
>>> output type,
>>> @@ -3509,7 +3531,7 @@ Action *Driver::ConstructPhaseAction(
>>>      if (Args.hasArg(options::OPT_verify_pch))
>>>        return C.MakeAction<VerifyPCHJobAction>(Input, types::TY_Nothing);
>>>      if (Args.hasArg(options::OPT_emit_iterface_stubs))
>>> -      return C.MakeAction<CompileJobAction>(Input, types::TY_IFS);
>>> +      return C.MakeAction<CompileJobAction>(Input, types::TY_IFS_CPP);
>>>      return C.MakeAction<CompileJobAction>(Input, types::TY_LLVM_BC);
>>>    }
>>>    case phases::Backend: {
>>>
>>> Modified: cfe/trunk/lib/Driver/Phases.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Phases.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/Phases.cpp (original)
>>> +++ cfe/trunk/lib/Driver/Phases.cpp Wed Oct  2 15:50:07 2019
>>> @@ -20,6 +20,7 @@ const char *phases::getPhaseName(ID Id)
>>>    case Backend: return "backend";
>>>    case Assemble: return "assembler";
>>>    case Link: return "linker";
>>> +  case IfsMerge: return "ifsmerger";
>>>    }
>>>
>>>    llvm_unreachable("Invalid phase id.");
>>>
>>> Modified: cfe/trunk/lib/Driver/ToolChain.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChain.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/ToolChain.cpp (original)
>>> +++ cfe/trunk/lib/Driver/ToolChain.cpp Wed Oct  2 15:50:07 2019
>>> @@ -10,6 +10,7 @@
>>>  #include "InputInfo.h"
>>>  #include "ToolChains/Arch/ARM.h"
>>>  #include "ToolChains/Clang.h"
>>> +#include "ToolChains/InterfaceStubs.h"
>>>  #include "clang/Basic/ObjCRuntime.h"
>>>  #include "clang/Basic/Sanitizers.h"
>>>  #include "clang/Config/config.h"
>>> @@ -279,6 +280,12 @@ Tool *ToolChain::getLink() const {
>>>    return Link.get();
>>>  }
>>>
>>> +Tool *ToolChain::getIfsMerge() const {
>>> +  if (!IfsMerge)
>>> +    IfsMerge.reset(new tools::ifstool::Merger(*this));
>>> +  return IfsMerge.get();
>>> +}
>>> +
>>>  Tool *ToolChain::getOffloadBundler() const {
>>>    if (!OffloadBundler)
>>>      OffloadBundler.reset(new tools::OffloadBundler(*this));
>>> @@ -290,6 +297,9 @@ Tool *ToolChain::getTool(Action::ActionC
>>>    case Action::AssembleJobClass:
>>>      return getAssemble();
>>>
>>> +  case Action::IfsMergeJobClass:
>>> +    return getIfsMerge();
>>> +
>>>    case Action::LinkJobClass:
>>>      return getLink();
>>>
>>>
>>> Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
>>> +++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Wed Oct  2 15:50:07 2019
>>> @@ -3683,32 +3683,15 @@ void Clang::ConstructJob(Compilation &C,
>>>      } else if (JA.getType() == types::TY_LLVM_BC ||
>>>                 JA.getType() == types::TY_LTO_BC) {
>>>        CmdArgs.push_back("-emit-llvm-bc");
>>> -    } else if (JA.getType() == types::TY_IFS) {
>>> +    } else if (JA.getType() == types::TY_IFS ||
>>> +               JA.getType() == types::TY_IFS_CPP) {
>>>        StringRef ArgStr =
>>>            Args.hasArg(options::OPT_iterface_stub_version_EQ)
>>>                ?
>>> Args.getLastArgValue(options::OPT_iterface_stub_version_EQ)
>>> -              : "";
>>> -      StringRef StubFormat =
>>> -          llvm::StringSwitch<StringRef>(ArgStr)
>>> -              .Case("experimental-ifs-v1", "experimental-ifs-v1")
>>> -              .Default("");
>>> -
>>> -      if (StubFormat.empty()) {
>>> -        std::string ErrorMessage =
>>> -            "Invalid interface stub format: " + ArgStr.str() +
>>> -            ((ArgStr == "experimental-yaml-elf-v1" ||
>>> -              ArgStr == "experimental-tapi-elf-v1")
>>> -                 ? " is deprecated."
>>> -                 : ".");
>>> -        D.Diag(diag::err_drv_invalid_value)
>>> -            << "Must specify a valid interface stub format type, ie: "
>>> -               "-interface-stub-version=experimental-ifs-v1"
>>> -            << ErrorMessage;
>>> -      }
>>> -
>>> +              : "experimental-ifs-v1";
>>>        CmdArgs.push_back("-emit-interface-stubs");
>>>        CmdArgs.push_back(
>>> -          Args.MakeArgString(Twine("-interface-stub-version=") +
>>> StubFormat));
>>> +          Args.MakeArgString(Twine("-interface-stub-version=") +
>>> ArgStr.str()));
>>>      } else if (JA.getType() == types::TY_PP_Asm) {
>>>        CmdArgs.push_back("-S");
>>>      } else if (JA.getType() == types::TY_AST) {
>>>
>>> Added: cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.cpp?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.cpp (added)
>>> +++ cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.cpp Wed Oct  2
>>> 15:50:07 2019
>>> @@ -0,0 +1,37 @@
>>> +//===---  InterfaceStubs.cpp - Base InterfaceStubs Implementations C++
>>> ---===//
>>> +//
>>> +// Part of the LLVM Project, under the Apache License v2.0 with LLVM
>>> Exceptions.
>>> +// See https://llvm.org/LICENSE.txt for license information.
>>> +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
>>> +//
>>>
>>> +//===----------------------------------------------------------------------===//
>>> +
>>> +#include "InterfaceStubs.h"
>>> +#include "CommonArgs.h"
>>> +#include "clang/Driver/Compilation.h"
>>> +
>>> +namespace clang {
>>> +namespace driver {
>>> +namespace tools {
>>> +namespace ifstool {
>>> +void Merger::ConstructJob(Compilation &C, const JobAction &JA,
>>> +                          const InputInfo &Output, const InputInfoList
>>> &Inputs,
>>> +                          const llvm::opt::ArgList &Args,
>>> +                          const char *LinkingOutput) const {
>>> +  std::string Merger = getToolChain().GetProgramPath(getShortName());
>>> +  llvm::opt::ArgStringList CmdArgs;
>>> +  CmdArgs.push_back("-action");
>>> +  CmdArgs.push_back(Args.getLastArg(options::OPT_emit_merged_ifs)
>>> +                        ? "write-ifs"
>>> +                        : "write-bin");
>>> +  CmdArgs.push_back("-o");
>>> +  CmdArgs.push_back(Output.getFilename());
>>> +  for (const auto &Input : Inputs)
>>> +    CmdArgs.push_back(Input.getFilename());
>>> +  C.addCommand(std::make_unique<Command>(JA, *this,
>>> Args.MakeArgString(Merger),
>>> +                                         CmdArgs, Inputs));
>>> +}
>>> +} // namespace ifstool
>>> +} // namespace tools
>>> +} // namespace driver
>>> +} // namespace clang
>>>
>>> Added: cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.h
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.h?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.h (added)
>>> +++ cfe/trunk/lib/Driver/ToolChains/InterfaceStubs.h Wed Oct  2 15:50:07
>>> 2019
>>> @@ -0,0 +1,36 @@
>>> +//===---  InterfaceStubs.cpp - Base InterfaceStubs Implementations C++
>>> ---===//
>>> +//
>>> +// Part of the LLVM Project, under the Apache License v2.0 with LLVM
>>> Exceptions.
>>> +// See https://llvm.org/LICENSE.txt for license information.
>>> +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
>>> +//
>>>
>>> +//===----------------------------------------------------------------------===//
>>> +
>>> +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_IFS_H
>>> +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_IFS_H
>>> +
>>> +#include "clang/Driver/Tool.h"
>>> +#include "clang/Driver/ToolChain.h"
>>> +
>>> +namespace clang {
>>> +namespace driver {
>>> +namespace tools {
>>> +namespace ifstool {
>>> +class LLVM_LIBRARY_VISIBILITY Merger : public Tool {
>>> +public:
>>> +  Merger(const ToolChain &TC) : Tool("IFS::Merger", "llvm-ifs", TC) {}
>>> +
>>> +  bool hasIntegratedCPP() const override { return false; }
>>> +  bool isLinkJob() const override { return false; }
>>> +
>>> +  void ConstructJob(Compilation &C, const JobAction &JA,
>>> +                    const InputInfo &Output, const InputInfoList
>>> &Inputs,
>>> +                    const llvm::opt::ArgList &TCArgs,
>>> +                    const char *LinkingOutput) const override;
>>> +};
>>> +} // end namespace ifstool
>>> +} // end namespace tools
>>> +} // end namespace driver
>>> +} // end namespace clang
>>> +
>>> +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_IFS_H
>>>
>>> Modified: cfe/trunk/lib/Driver/Types.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Types.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Driver/Types.cpp (original)
>>> +++ cfe/trunk/lib/Driver/Types.cpp Wed Oct  2 15:50:07 2019
>>> @@ -269,6 +269,7 @@ types::ID types::lookupTypeForExtension(
>>>             .Case("lib", TY_Object)
>>>             .Case("mii", TY_PP_ObjCXX)
>>>             .Case("obj", TY_Object)
>>> +           .Case("ifs", TY_IFS)
>>>             .Case("pch", TY_PCH)
>>>             .Case("pcm", TY_ModuleFile)
>>>             .Case("c++m", TY_CXXModule)
>>> @@ -319,6 +320,22 @@ void types::getCompilationPhases(const c
>>>      llvm::copy_if(PhaseList, std::back_inserter(P),
>>>                    [](phases::ID Phase) { return Phase <=
>>> phases::Precompile; });
>>>
>>> +  // Treat Interface Stubs like its own compilation mode.
>>> +  else if (DAL.getLastArg(options::OPT_emit_iterface_stubs)) {
>>> +    llvm::SmallVector<phases::ID, phases::MaxNumberOfPhases>
>>> IfsModePhaseList;
>>> +    llvm::SmallVector<phases::ID, phases::MaxNumberOfPhases> &PL =
>>> PhaseList;
>>> +    phases::ID LastPhase = phases::IfsMerge;
>>> +    if (Id != types::TY_IFS) {
>>> +      if (DAL.hasArg(options::OPT_c))
>>> +        LastPhase = phases::Compile;
>>> +      PL = IfsModePhaseList;
>>> +      types::getCompilationPhases(types::TY_IFS_CPP, PL);
>>> +    }
>>> +    llvm::copy_if(PL, std::back_inserter(P), [&](phases::ID Phase) {
>>> +      return Phase <= LastPhase;
>>> +    });
>>> +  }
>>> +
>>>    // -{fsyntax-only,-analyze,emit-ast} only run up to the compiler.
>>>    else if (DAL.getLastArg(options::OPT_fsyntax_only) ||
>>>             DAL.getLastArg(options::OPT_print_supported_cpus) ||
>>> @@ -327,7 +344,6 @@ void types::getCompilationPhases(const c
>>>             DAL.getLastArg(options::OPT_rewrite_objc) ||
>>>             DAL.getLastArg(options::OPT_rewrite_legacy_objc) ||
>>>             DAL.getLastArg(options::OPT__migrate) ||
>>> -           DAL.getLastArg(options::OPT_emit_iterface_stubs) ||
>>>             DAL.getLastArg(options::OPT__analyze) ||
>>>             DAL.getLastArg(options::OPT_emit_ast))
>>>      llvm::copy_if(PhaseList, std::back_inserter(P),
>>>
>>> Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
>>> +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Wed Oct  2 15:50:07
>>> 2019
>>> @@ -1734,24 +1734,25 @@ static InputKind ParseFrontendArgs(Front
>>>        StringRef ArgStr =
>>>            Args.hasArg(OPT_iterface_stub_version_EQ)
>>>                ? Args.getLastArgValue(OPT_iterface_stub_version_EQ)
>>> -              : "";
>>> -      llvm::Optional<frontend::ActionKind> ProgramAction =
>>> -
>>> llvm::StringSwitch<llvm::Optional<frontend::ActionKind>>(ArgStr)
>>> -              .Case("experimental-ifs-v1",
>>> frontend::GenerateInterfaceIfsExpV1)
>>> -              .Default(llvm::None);
>>> -      if (!ProgramAction) {
>>> +              : "experimental-ifs-v1";
>>> +      if (ArgStr == "experimental-yaml-elf-v1" ||
>>> +          ArgStr == "experimental-tapi-elf-v1") {
>>>          std::string ErrorMessage =
>>>              "Invalid interface stub format: " + ArgStr.str() +
>>> -            ((ArgStr == "experimental-yaml-elf-v1" ||
>>> -              ArgStr == "experimental-tapi-elf-v1")
>>> -                 ? " is deprecated."
>>> -                 : ".");
>>> +            " is deprecated.";
>>> +        Diags.Report(diag::err_drv_invalid_value)
>>> +            << "Must specify a valid interface stub format type, ie: "
>>> +               "-interface-stub-version=experimental-ifs-v1"
>>> +            << ErrorMessage;
>>> +      } else if (ArgStr != "experimental-ifs-v1") {
>>> +        std::string ErrorMessage =
>>> +            "Invalid interface stub format: " + ArgStr.str() + ".";
>>>          Diags.Report(diag::err_drv_invalid_value)
>>>              << "Must specify a valid interface stub format type, ie: "
>>>                 "-interface-stub-version=experimental-ifs-v1"
>>>              << ErrorMessage;
>>>        } else {
>>> -        Opts.ProgramAction = *ProgramAction;
>>> +        Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1;
>>>        }
>>>        break;
>>>      }
>>>
>>> Modified: cfe/trunk/test/InterfaceStubs/bad-format.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/bad-format.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/bad-format.cpp (original)
>>> +++ cfe/trunk/test/InterfaceStubs/bad-format.cpp Wed Oct  2 15:50:07 2019
>>> @@ -1,28 +1,25 @@
>>> -// REQUIRES: x86-registered-target
>>> -// RUN: not %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=bar-format %s 2>&1 | FileCheck %s
>>> +// RUN: not %clang -emit-interface-stubs
>>> -interface-stub-version=bad-format %s 2>&1 | \
>>> +// RUN: FileCheck %s
>>>
>>> -// RUN: not %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s 2>&1 | \
>>> +// RUN: not %clang -emit-interface-stubs
>>> -interface-stub-version=experimental-tapi-elf-v1 %s 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-TAPI-DEPRECATED %s
>>>
>>> -// RUN: not %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-yaml-elf-v1 %s 2>&1 | \
>>> +// RUN: not %clang -emit-interface-stubs
>>> -interface-stub-version=experimental-yaml-elf-v1 %s 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-YAML-DEPRECATED %s
>>>
>>> -// RUN: not %clang_cc1 -target x86_64-linux-gnu -o -
>>> -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=bar-format %s 2>&1 | FileCheck %s
>>> +// RUN: not %clang -emit-interface-stubs
>>> -interface-stub-version=bad-format %s 2>&1 | \
>>> +// RUN: FileCheck %s
>>>
>>> -// RUN: not %clang_cc1 -target x86_64-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: not %clang -emit-interface-stubs \
>>>  // RUN: -interface-stub-version=experimental-tapi-elf-v1 %s 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-TAPI-DEPRECATED %s
>>>
>>> -// RUN: not %clang_cc1 -target x86_64-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: not %clang -emit-interface-stubs \
>>>  // RUN: -interface-stub-version=experimental-yaml-elf-v1 %s 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-YAML-DEPRECATED %s
>>>
>>>  // CHECK: error: invalid value
>>> -// CHECK: 'Invalid interface stub format: bar-format.' in 'Must specify
>>> a
>>> +// CHECK: 'Invalid interface stub format: bad-format.' in 'Must specify
>>> a
>>>  // CHECK: valid interface stub format type, ie:
>>>  // CHECK: -interface-stub-version=experimental-ifs-v1'
>>>
>>>
>>> Modified: cfe/trunk/test/InterfaceStubs/class-template-specialization.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/class-template-specialization.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/class-template-specialization.cpp
>>> (original)
>>> +++ cfe/trunk/test/InterfaceStubs/class-template-specialization.cpp Wed
>>> Oct  2 15:50:07 2019
>>> @@ -1,9 +1,9 @@
>>>  // REQUIRES: x86-registered-target
>>> -// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs -emit-merged-ifs \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-TAPI %s
>>>
>>> -// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs -emit-merged-ifs \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-TAPI2 %s
>>>  // RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | \
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/conflict-type.ifs
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/conflict-type.ifs?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/conflict-type.ifs (added)
>>> +++ cfe/trunk/test/InterfaceStubs/conflict-type.ifs Wed Oct  2 15:50:07
>>> 2019
>>> @@ -0,0 +1,16 @@
>>> +# RUN: not %clang -emit-merged-ifs -emit-interface-stubs -o - %s
>>> %S/func.ifs 2>&1 | \
>>> +# RUN: FileCheck %s --check-prefixes=CHECK-IFS
>>> +
>>> +# Here we are testing to see if two symbols with identical names will
>>> fail to
>>> +# merge in conflict due to mismatched types.
>>> +# CHECK-IFS: error: Interface Stub: Type Mismatch for a.
>>> +# CHECK-IFS-NEXT: Filename:
>>> +# CHECK-IFS-NEXT: Type Values: Object Func
>>> +
>>> +--- !experimental-ifs-v1
>>> +IfsVersion: 1.0
>>> +Triple: x86_64-linux-gnu
>>> +ObjectFileFormat: ELF
>>> +Symbols:
>>> +  a: { Type: Object, Size: 1 }
>>> +...
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/driver-test.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/driver-test.c?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/driver-test.c (added)
>>> +++ cfe/trunk/test/InterfaceStubs/driver-test.c Wed Oct  2 15:50:07 2019
>>> @@ -0,0 +1,12 @@
>>> +// RUN: %clang -x c -o libfoo.so -emit-interface-stubs %s %S/object.c
>>> %S/weak.cpp && \
>>> +// RUN: llvm-nm libfoo.so 2>&1 | FileCheck %s
>>> +
>>> +// RUN: %clang -x c -o libfoo.so -shared %s %S/object.c %S/weak.cpp && \
>>> +// RUN: llvm-nm libfoo.so 2>&1 | FileCheck %s
>>> +
>>> +// CHECK-DAG: data
>>> +// CHECK-DAG: foo
>>> +// CHECK-DAG: strongFunc
>>> +// CHECK-DAG: weakFunc
>>> +
>>> +int foo(int bar) { return 42 + 1844; }
>>> \ No newline at end of file
>>>
>>> Modified: cfe/trunk/test/InterfaceStubs/externstatic.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/externstatic.c?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/externstatic.c (original)
>>> +++ cfe/trunk/test/InterfaceStubs/externstatic.c Wed Oct  2 15:50:07 2019
>>> @@ -1,24 +1,20 @@
>>> -// REQUIRES: x86-registered-target
>>> -// RUN: %clang -DSTORAGE="extern" -target x86_64-unknown-linux-gnu -o -
>>> \
>>> -// RUN: -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=c99 -xc %s | \
>>> +// RUN: %clang -c -DSTORAGE="extern" -o - -emit-interface-stubs
>>> -std=c99 -xc %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-EXTERN %s
>>> -// RUN: %clang -DSTORAGE="extern" -target x86_64-linux-gnu -O0 -o - -c
>>> -std=c99 \
>>> +
>>> +// RUN: %clang -DSTORAGE="extern" -O0 -o - -c -std=c99 \
>>>  // RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-EXTERN
>>> %s
>>>
>>> -// RUN: %clang -DSTORAGE="extern" -target x86_64-unknown-linux-gnu -o -
>>> \
>>> -// RUN: -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=c99 -xc %s | \
>>> +// RUN: %clang -c -DSTORAGE="extern" -o - -emit-interface-stubs
>>> -std=c99 -xc %s | \
>>> +// RUN: FileCheck -check-prefix=CHECK-EXTERN2 %s
>>> +
>>> +// RUN: %clang -DSTORAGE="extern" -O0 -o - -c -std=c99 -xc %s | llvm-nm
>>> - 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-EXTERN2 %s
>>> -// RUN: %clang -DSTORAGE="extern" -target x86_64-linux-gnu -O0 -o - -c
>>> -std=c99 \
>>> -// RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-EXTERN2
>>> %s
>>>
>>> -// RUN: %clang -DSTORAGE="static" -target x86_64-unknown-linux-gnu -o -
>>> \
>>> -// RUN: -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=c99 -xc %s | \
>>> +// RUN: %clang -c -DSTORAGE="static" -o - -emit-interface-stubs
>>> -std=c99 -xc %s | \
>>> +// RUN: FileCheck -check-prefix=CHECK-STATIC %s
>>> +
>>> +// RUN: %clang -DSTORAGE="static" -O0 -o - -c -std=c99 -xc %s | llvm-nm
>>> - 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-STATIC %s
>>> -// RUN: %clang -DSTORAGE="static" -target x86_64-linux-gnu -O0 -o - -c
>>> -std=c99 \
>>> -// RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-STATIC
>>> %s
>>>
>>>  // CHECK-EXTERN-NOT: foo
>>>  // CHECK-STATIC-NOT: foo
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/func.ifs
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/func.ifs?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/func.ifs (added)
>>> +++ cfe/trunk/test/InterfaceStubs/func.ifs Wed Oct  2 15:50:07 2019
>>> @@ -0,0 +1,40 @@
>>> +# RUN: %clang -emit-interface-stubs -o - %s %S/object.ifs
>>> -emit-merged-ifs | \
>>> +# RUN: FileCheck %s --check-prefixes=CHECK-IFS
>>> +
>>> +# RUN: %clang -emit-interface-stubs -o - %s %S/object.ifs |
>>> llvm-readelf --all | \
>>> +# RUN: FileCheck %s --check-prefixes=CHECK-ELF
>>> +
>>> +# RUN: %clang -emit-interface-stubs -o - %s %s -emit-merged-ifs | \
>>> +# RUN: FileCheck %s --check-prefixes=CHECK-MERGE-IFS
>>> +
>>> +# CHECK-IFS: --- !experimental-ifs-v1
>>> +# CHECK-IFS-NEXT: IfsVersion:      1.0
>>> +# CHECK-IFS-NEXT: Triple:          x86_64-linux-gnu
>>> +# CHECK-IFS-NEXT: ObjectFileFormat: ELF
>>> +# CHECK-IFS-NEXT: Symbols:
>>> +# CHECK-IFS-DAG:   a:               { Type: Func }
>>> +# CHECK-IFS-DAG:   b:               { Type: Object, Size: 4 }
>>> +# CHECK-IFS: ...
>>> +
>>> +# CHECK-ELF: ELF Header:
>>> +# CHECK-ELF:   Class:                             ELF64
>>> +# CHECK-ELF:   Type:                              DYN (Shared object
>>> file)
>>> +# CHECK-ELF:   FUNC    GLOBAL DEFAULT  1 a
>>> +# CHECK-ELF:   OBJECT  GLOBAL DEFAULT  1 b
>>> +
>>> +# Here we are testing to see if two identical symbols will merge.
>>> +# CHECK-MERGE-IFS: --- !experimental-ifs-v1
>>> +# CHECK-MERGE-IFS-NEXT: IfsVersion:      1.0
>>> +# CHECK-MERGE-IFS-NEXT: Triple:          x86_64-linux-gnu
>>> +# CHECK-MERGE-IFS-NEXT: ObjectFileFormat: ELF
>>> +# CHECK-MERGE-IFS-NEXT: Symbols:
>>> +# CHECK-MERGE-IFS-NEXT:   a:               { Type: Func }
>>> +# CHECK-MERGE-IFS-NEXT: ...
>>> +
>>> +--- !experimental-ifs-v1
>>> +IfsVersion: 1.0
>>> +Triple: x86_64-linux-gnu
>>> +ObjectFileFormat: ELF
>>> +Symbols:
>>> +  a: { Type: Func }
>>> +...
>>>
>>> Modified:
>>> cfe/trunk/test/InterfaceStubs/function-template-specialization.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/function-template-specialization.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/function-template-specialization.cpp
>>> (original)
>>> +++ cfe/trunk/test/InterfaceStubs/function-template-specialization.cpp
>>> Wed Oct  2 15:50:07 2019
>>> @@ -1,13 +1,15 @@
>>>  // REQUIRES: x86-registered-target
>>> -// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +
>>> +// TODO: Fix the case in llvm-ifs where it crashes on an empty Symbols
>>> list.
>>> +// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs -c \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 %s | FileCheck %s
>>>
>>> -// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs -emit-merged-ifs \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 \
>>>  // RUN: -DUSE_TEMPLATE_FUNCTION=1 %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-USES-TEMPLATE-FUNCTION %s
>>>
>>> -// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs -emit-merged-ifs \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 \
>>>  // RUN: -DSPECIALIZE_TEMPLATE_FUNCTION=1 %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-SPECIALIZES-TEMPLATE-FUNCTION %s
>>>
>>> Modified: cfe/trunk/test/InterfaceStubs/inline.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/inline.c?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/inline.c (original)
>>> +++ cfe/trunk/test/InterfaceStubs/inline.c Wed Oct  2 15:50:07 2019
>>> @@ -1,37 +1,32 @@
>>>  // REQUIRES: x86-registered-target
>>> -// RUN: %clang -DINLINE=inline -target x86_64-unknown-linux-gnu -o - \
>>> -// RUN: -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=gnu89 -xc %s |
>>> \
>>> +// RUN: %clang -c -DINLINE=inline -target x86_64-unknown-linux-gnu -o -
>>> \
>>> +// RUN: -emit-interface-stubs -std=gnu89 -xc %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-GNU %s
>>>  // RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -O0 -o - -c \
>>>  // RUN: -std=gnu89 -xc %s | llvm-nm - | FileCheck
>>> -check-prefix=CHECK-GNU %s
>>>
>>> -// RUN: %clang -DINLINE="__attribute__((always_inline))" \
>>> -// RUN: -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -xc %s | \
>>> +// RUN: %clang -c -DINLINE="__attribute__((always_inline))" \
>>> +// RUN: -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs -xc
>>> %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-GNU %s
>>>  // RUN: %clang -DINLINE="__attribute__((always_inline))" \
>>>  // RUN: -target x86_64-linux-gnu -O0 -o - -c -xc %s | \
>>>  // RUN: llvm-nm - | FileCheck -check-prefix=CHECK-GNU %s
>>>
>>> -// RUN: %clang -DINLINE=inline -target x86_64-unknown-linux-gnu -o - \
>>> -// RUN: -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=c99 -xc %s | \
>>> +// RUN: %clang -c -DINLINE=inline -target x86_64-unknown-linux-gnu -o -
>>> \
>>> +// RUN: -emit-interface-stubs -std=c99 -xc %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-STD %s
>>>  // RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -O0 -o - -c
>>> -std=c99 \
>>>  // RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-STD %s
>>>
>>> -// RUN: %clang -DINLINE="__attribute__((noinline))" \
>>> -// RUN: -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=c99 -xc %s | \
>>> +// RUN: %clang -c -DINLINE="__attribute__((noinline))" \
>>> +// RUN: -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs
>>> -std=c99 -xc %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-NOINLINE %s
>>>  // RUN: %clang -DINLINE="__attribute__((noinline))" -target
>>> x86_64-linux-gnu \
>>>  // RUN: -O0 -o - -c -std=c99 -xc %s | llvm-nm - 2>&1 | \
>>>  // RUN: FileCheck -check-prefix=CHECK-NOINLINE %s
>>>
>>> -// RUN: %clang -DINLINE="static" -target x86_64-unknown-linux-gnu -o - \
>>> -// RUN: -emit-interface-stubs \
>>> -// RUN: -interface-stub-version=experimental-ifs-v1 -std=c99 -xc %s | \
>>> +// RUN: %clang -c -DINLINE="static" -target x86_64-unknown-linux-gnu -o
>>> - \
>>> +// RUN: -emit-interface-stubs -std=c99 -xc %s | \
>>>  // RUN: FileCheck -check-prefix=CHECK-STATIC %s
>>>  // RUN: %clang -DINLINE="static" -target x86_64-linux-gnu -O0 -o - -c \
>>>  // RUN: -std=c99 -xc %s | llvm-nm - 2>&1 | \
>>> @@ -50,12 +45,12 @@ INLINE int foo() {
>>>    return var;
>>>  }
>>>
>>> -// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -o - \
>>> -// RUN: -emit-interface-stubs
>>> -interface-stub-version=experimental-ifs-v1 \
>>> +// RUN: %clang -c -DINLINE=inline -target x86_64-linux-gnu -o - \
>>> +// RUN: -emit-interface-stubs \
>>>  // RUN: -std=gnu89 -xc %s | FileCheck -check-prefix=CHECK-TAPI %s
>>>
>>> -// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -o - \
>>> -// RUN: -emit-interface-stubs
>>> -interface-stub-version=experimental-ifs-v1 \
>>> +// RUN: %clang -c -DINLINE=inline -target x86_64-linux-gnu -o - \
>>> +// RUN: -emit-interface-stubs \
>>>  // RUN: -std=gnu89 -xc %s | FileCheck -check-prefix=CHECK-SYMBOLS %s
>>>  // RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -o - \
>>>  // RUN: -c -std=gnu89 -xc %s | llvm-nm - 2>&1 | \
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/merge-conflict-test.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/merge-conflict-test.c?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/merge-conflict-test.c (added)
>>> +++ cfe/trunk/test/InterfaceStubs/merge-conflict-test.c Wed Oct  2
>>> 15:50:07 2019
>>> @@ -0,0 +1,3 @@
>>> +// RUN: not %clang -o libfoo.so -emit-interface-stubs %s
>>> %S/driver-test.c 2>&1 | FileCheck %s
>>> +// CHECK: error: Interface Stub: Type Mismatch
>>> +int foo;
>>> \ No newline at end of file
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/object-double.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/object-double.c?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/object-double.c (added)
>>> +++ cfe/trunk/test/InterfaceStubs/object-double.c Wed Oct  2 15:50:07
>>> 2019
>>> @@ -0,0 +1,5 @@
>>> +// RUN: not %clang -o - -emit-interface-stubs %s %S/object.c 2>&1 |
>>> FileCheck %s
>>> +// Need to encode more type info or weak vs strong symbol resolution in
>>> llvm-ifs
>>> +// XFAIL: *
>>> +// CHECK: error: Interface Stub: Size Mismatch
>>> +float data = 42.0;
>>> \ No newline at end of file
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/object-float.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/object-float.c?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/object-float.c (added)
>>> +++ cfe/trunk/test/InterfaceStubs/object-float.c Wed Oct  2 15:50:07 2019
>>> @@ -0,0 +1,3 @@
>>> +// RUN: not %clang -o - -emit-interface-stubs %s %S/object.c 2>&1 |
>>> FileCheck %s
>>> +// CHECK: error: Interface Stub: Size Mismatch
>>> +double data = 42.0;
>>> \ No newline at end of file
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/object.c
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/object.c?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/object.c (added)
>>> +++ cfe/trunk/test/InterfaceStubs/object.c Wed Oct  2 15:50:07 2019
>>> @@ -0,0 +1,7 @@
>>> +// RUN: %clang -c -o - -emit-interface-stubs %s | FileCheck
>>> -check-prefix=CHECK-TAPI %s
>>> +// RUN: %clang -c -o - -emit-interface-stubs %s | FileCheck
>>> -check-prefix=CHECK-SYMBOLS %s
>>> +// RUN: %clang -c -o - %s | llvm-nm - 2>&1 | FileCheck
>>> -check-prefix=CHECK-SYMBOLS %s
>>> +
>>> +// CHECK-TAPI: data: { Type: Object, Size: 4 }
>>> +// CHECK-SYMBOLS: data
>>> +int data = 42;
>>>
>>> Added: cfe/trunk/test/InterfaceStubs/object.ifs
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/object.ifs?rev=373538&view=auto
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/object.ifs (added)
>>> +++ cfe/trunk/test/InterfaceStubs/object.ifs Wed Oct  2 15:50:07 2019
>>> @@ -0,0 +1,28 @@
>>> +# RUN: %clang -emit-interface-stubs -o - -emit-merged-ifs %s | \
>>> +# RUN: FileCheck %s --check-prefixes=CHECK-IFS
>>> +
>>> +# RUN: %clang -emit-interface-stubs -o - %s | llvm-readelf --all | \
>>> +# RUN: FileCheck %s --check-prefixes=CHECK-ELF
>>> +
>>> +# CHECK-IFS: --- !experimental-ifs-v1
>>> +# CHECK-IFS-NEXT: IfsVersion:      1.0
>>> +# CHECK-IFS-NEXT: Triple: x86_64-linux-gnu
>>> +# CHECK-IFS-NEXT: ObjectFileFormat: ELF
>>> +# CHECK-IFS-NEXT: Symbols:
>>> +# CHECK-IFS-NEXT:   b:               { Type: Object, Size: 4 }
>>> +# CHECK-IFS-NEXT: ...
>>> +
>>> +# CHECK-ELF: ELF Header:
>>> +# CHECK-ELF:   Class:                             ELF64
>>> +# CHECK-ELF:   Data:                              2's complement,
>>> little endian
>>> +# CHECK-ELF:   Type:                              DYN (Shared object
>>> file)
>>> +# CHECK-ELF-NOT:   FUNC    GLOBAL DEFAULT  1 a
>>> +# CHECK-ELF:   OBJECT  GLOBAL DEFAULT  1 b
>>> +
>>> +--- !experimental-ifs-v1
>>> +IfsVersion: 1.0
>>> +Triple: x86_64-linux-gnu
>>> +ObjectFileFormat: ELF
>>> +Symbols:
>>> +  b: { Type: Object, Size: 4 }
>>> +...
>>>
>>> Modified: cfe/trunk/test/InterfaceStubs/template-namespace-function.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/template-namespace-function.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/template-namespace-function.cpp
>>> (original)
>>> +++ cfe/trunk/test/InterfaceStubs/template-namespace-function.cpp Wed
>>> Oct  2 15:50:07 2019
>>> @@ -1,5 +1,5 @@
>>>  // REQUIRES: x86-registered-target
>>> -// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs \
>>> +// RUN: %clang -target x86_64-unknown-linux-gnu -o -
>>> -emit-interface-stubs -emit-merged-ifs \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 %s | \
>>>  // RUN: FileCheck %s
>>>
>>>
>>> Modified: cfe/trunk/test/InterfaceStubs/weak.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/InterfaceStubs/weak.cpp?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/InterfaceStubs/weak.cpp (original)
>>> +++ cfe/trunk/test/InterfaceStubs/weak.cpp Wed Oct  2 15:50:07 2019
>>> @@ -1,5 +1,5 @@
>>>  // REQUIRES: x86-registered-target
>>> -// RUN: %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
>>> +// RUN: %clang -target x86_64-linux-gnu -o - -emit-interface-stubs
>>> -emit-merged-ifs \
>>>  // RUN: -interface-stub-version=experimental-ifs-v1 %s | \
>>>  // RUN: FileCheck %s
>>>
>>>
>>> Modified: cfe/trunk/test/lit.cfg.py
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/lit.cfg.py?rev=373538&r1=373537&r2=373538&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/test/lit.cfg.py (original)
>>> +++ cfe/trunk/test/lit.cfg.py Wed Oct  2 15:50:07 2019
>>> @@ -26,7 +26,7 @@ config.test_format = lit.formats.ShTest(
>>>
>>>  # suffixes: A list of file extensions to treat as test files.
>>>  config.suffixes = ['.c', '.cpp', '.cppm', '.m', '.mm', '.cu',
>>> -                   '.ll', '.cl', '.s', '.S', '.modulemap', '.test',
>>> '.rs']
>>> +                   '.ll', '.cl', '.s', '.S', '.modulemap', '.test',
>>> '.rs', '.ifs']
>>>
>>>  # excludes: A list of directories to exclude from the testsuite. The
>>> 'Inputs'
>>>  # subdirectories contain auxiliary inputs for various tests in their
>>> parent
>>> @@ -61,7 +61,7 @@ config.substitutions.append(('%PATH%', c
>>>  tool_dirs = [config.clang_tools_dir, config.llvm_tools_dir]
>>>
>>>  tools = [
>>> -    'c-index-test', 'clang-diff', 'clang-format', 'clang-tblgen', 'opt',
>>> +    'c-index-test', 'clang-diff', 'clang-format', 'clang-tblgen',
>>> 'opt', 'llvm-ifs',
>>>      ToolSubst('%clang_extdef_map', command=FindTool(
>>>          'clang-extdef-mapping'), unresolved='ignore'),
>>>  ]
>>>
>>>
>>> _______________________________________________
>>> cfe-commits mailing list
>>> cfe-commits at lists.llvm.org
>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>>>
>>
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20191002/93153f24/attachment-0001.html>


More information about the cfe-commits mailing list