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

Nico Weber via cfe-commits cfe-commits at lists.llvm.org
Wed Oct 2 16:36:43 PDT 2019


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
>
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