[llvm] r358337 - [CommandLineParser] Add DefaultOption flag

Don Hinton via llvm-commits llvm-commits at lists.llvm.org
Mon Apr 15 07:47:56 PDT 2019


Thanks for reverting, and sorry for the problem.

On Mon, Apr 15, 2019 at 7:42 AM Ilya Biryukov <ibiryukov at google.com> wrote:

> Reverted in r358414. And thanks for looking into it!
>
> On Mon, Apr 15, 2019 at 4:34 PM Don Hinton <hintonda at gmail.com> wrote:
>
>> Hi Ilya:
>>
>> Looking, but might not be fast enough for you.  Feel free to revert if
>> you need to.  Will let you know as soon as I find something.
>>
>> thanks...
>> don
>>
>> On Mon, Apr 15, 2019 at 7:03 AM Ilya Biryukov <ibiryukov at google.com>
>> wrote:
>>
>>> +llvm-commits <llvm-commits at lists.llvm.org>
>>>
>>> On Mon, Apr 15, 2019 at 3:56 PM Ilya Biryukov <ibiryukov at google.com>
>>> wrote:
>>>
>>>> Hi Don,
>>>>
>>>> This change produces a failure during our integrate. I'll have to
>>>> revert the change to unbreak us. If you can provide a fix really quickly,
>>>> let me know and I'll wait for it to land instead.
>>>>
>>>> You can reproduce it under asan by running:
>>>> $ ninja SupportTests && unittests/Support/SupportTests
>>>>
>>>> Here's the corresponding asan trace:
>>>> [ RUN      ] CommandLineTest.SetDefautValue
>>>> =================================================================
>>>> ==167392==ERROR: AddressSanitizer: stack-buffer-overflow on address
>>>> 0x7ffc680fecec at pc 0x7f2d8c7c3c51 bp 0x7ffc680fe980 sp 0x7ffc680fe978
>>>> READ of size 4 at 0x7ffc680fecec thread T0
>>>>     #0 0x7f2d8c7c3c50 in size
>>>> ...llvm/include/llvm/ADT/SmallPtrSet.h:92:35
>>>>     #1 0x7f2d8c7c3c50 in empty ...llvm/include/llvm/ADT/SmallPtrSet.h:91
>>>>     #2 0x7f2d8c7c3c50 in (anonymous
>>>> namespace)::CommandLineParser::addOption(llvm::cl::Option*, bool)
>>>> ...llvm/lib/Support/CommandLine.cpp:204
>>>>     #3 0x7f2d8c7ce9c3 in ParseCommandLineOptions
>>>> ...llvm/lib/Support/CommandLine.cpp:1202:5
>>>>     #4 0x7f2d8c7ce9c3 in llvm::cl::ParseCommandLineOptions(int, char
>>>> const* const*, llvm::StringRef, llvm::raw_ostream*, char const*)
>>>> ...llvm/lib/Support/CommandLine.cpp:1139
>>>>     #5 0x743717 in (anonymous
>>>> namespace)::CommandLineTest_SetDefautValue_Test::TestBody()
>>>> ...llvm/unittests/Support/CommandLineTest.cpp:794:3
>>>>     #6 0x7f2d8cc53430 in
>>>> HandleExceptionsInMethodIfSupported<testing::Test, void>
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc
>>>>     #7 0x7f2d8cc53430 in testing::Test::Run()
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc:2474
>>>>     #8 0x7f2d8cc57a35 in testing::TestInfo::Run()
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc:2656:11
>>>>     #9 0x7f2d8cc59270 in testing::TestCase::Run()
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc:2774:28
>>>>     #10 0x7f2d8cc7a210 in
>>>> testing::internal::UnitTestImpl::RunAllTests()
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc:4649:43
>>>>     #11 0x7f2d8cc793d6 in
>>>> HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc
>>>>     #12 0x7f2d8cc793d6 in testing::UnitTest::Run()
>>>> ...llvm/utils/unittest/googletest/src/gtest.cc:4257
>>>>     #13 0x7f2d8ccf7256 in RUN_ALL_TESTS
>>>> ...llvm/utils/unittest/googletest/include/gtest/gtest.h:2233:46
>>>>     #14 0x7f2d8ccf7256 in main
>>>> ...llvm/utils/unittest/UnitTestMain/TestMain.cpp:50
>>>>     #15 0x7f2d8b2f52b0 in __libc_start_main
>>>> (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
>>>>     #16 0x4c8029 in _start
>>>> (...build-asan/unittests/Support/SupportTests+0x4c8029)
>>>>
>>>>
>>>>
>>>>
>>>> On Sat, Apr 13, 2019 at 6:53 PM Don Hinton via llvm-commits <
>>>> llvm-commits at lists.llvm.org> wrote:
>>>>
>>>>> Author: dhinton
>>>>> Date: Sat Apr 13 09:55:28 2019
>>>>> New Revision: 358337
>>>>>
>>>>> URL: http://llvm.org/viewvc/llvm-project?rev=358337&view=rev
>>>>> Log:
>>>>> [CommandLineParser] Add DefaultOption flag
>>>>>
>>>>> Summary: Add DefaultOption flag to CommandLineParser which provides a
>>>>> default option or alias, but allows users to override it for some
>>>>> other purpose as needed.
>>>>>
>>>>> Also, add `-h` as a default alias to `-help`, which can be seamlessly
>>>>> overridden by applications like llvm-objdump and llvm-readobj which
>>>>> use `-h` as an alias for other options.
>>>>>
>>>>> Reviewers: alexfh, klimek
>>>>>
>>>>> Reviewed By: klimek
>>>>>
>>>>> Subscribers: MaskRay, mehdi_amini, inglorion, dexonsmith, hiraditya,
>>>>> llvm-commits, jhenderson, arphaman, cfe-commits
>>>>>
>>>>> Tags: #clang, #llvm
>>>>>
>>>>> Differential Revision: https://reviews.llvm.org/D59746
>>>>>
>>>>> Added:
>>>>>     llvm/trunk/test/Support/
>>>>>     llvm/trunk/test/Support/check-default-options.txt
>>>>> Modified:
>>>>>     llvm/trunk/docs/CommandLine.rst
>>>>>     llvm/trunk/include/llvm/Support/CommandLine.h
>>>>>     llvm/trunk/lib/Support/CommandLine.cpp
>>>>>     llvm/trunk/tools/llvm-opt-report/OptReport.cpp
>>>>>     llvm/trunk/unittests/Support/CommandLineTest.cpp
>>>>>
>>>>> Modified: llvm/trunk/docs/CommandLine.rst
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/CommandLine.rst?rev=358337&r1=358336&r2=358337&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- llvm/trunk/docs/CommandLine.rst (original)
>>>>> +++ llvm/trunk/docs/CommandLine.rst Sat Apr 13 09:55:28 2019
>>>>> @@ -128,6 +128,7 @@ this:
>>>>>    USAGE: compiler [options]
>>>>>
>>>>>    OPTIONS:
>>>>> +    -h                - Alias for -help
>>>>>      -help             - display available options (-help-hidden for
>>>>> more)
>>>>>      -o <filename>     - Specify output filename
>>>>>
>>>>> @@ -194,6 +195,7 @@ declarations above, the ``-help`` option
>>>>>    USAGE: compiler [options] <input file>
>>>>>
>>>>>    OPTIONS:
>>>>> +    -h                - Alias for -help
>>>>>      -help             - display available options (-help-hidden for
>>>>> more)
>>>>>      -o <filename>     - Specify output filename
>>>>>
>>>>> @@ -1251,6 +1253,14 @@ specify boolean properties that modify t
>>>>>    with ``cl::CommaSeparated``, this modifier only makes sense with a
>>>>> `cl::list`_
>>>>>    option.
>>>>>
>>>>> +.. _cl::DefaultOption:
>>>>> +
>>>>> +* The **cl::DefaultOption** modifier is used to specify that the
>>>>> option is a
>>>>> +  default that can be overridden by application specific parsers. For
>>>>> example,
>>>>> +  the ``-help`` alias, ``-h``, is registered this way, so it can be
>>>>> overridden
>>>>> +  by applications that need to use the ``-h`` option for another
>>>>> purpose,
>>>>> +  either as a regular option or an alias for another option.
>>>>> +
>>>>>  .. _response files:
>>>>>
>>>>>  Response files
>>>>>
>>>>> Modified: llvm/trunk/include/llvm/Support/CommandLine.h
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/CommandLine.h?rev=358337&r1=358336&r2=358337&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- llvm/trunk/include/llvm/Support/CommandLine.h (original)
>>>>> +++ llvm/trunk/include/llvm/Support/CommandLine.h Sat Apr 13 09:55:28
>>>>> 2019
>>>>> @@ -175,7 +175,10 @@ enum MiscFlags {             // Miscella
>>>>>    // If this is enabled, multiple letter options are allowed to bunch
>>>>> together
>>>>>    // with only a single hyphen for the whole group.  This allows
>>>>> emulation
>>>>>    // of the behavior that ls uses for example: ls -la === ls -l -a
>>>>> -  Grouping = 0x08
>>>>> +  Grouping = 0x08,
>>>>> +
>>>>> +  // Default option
>>>>> +  DefaultOption = 0x10
>>>>>  };
>>>>>
>>>>>
>>>>>  //===----------------------------------------------------------------------===//
>>>>> @@ -270,7 +273,7 @@ class Option {
>>>>>    unsigned Value : 2;
>>>>>    unsigned HiddenFlag : 2; // enum OptionHidden
>>>>>    unsigned Formatting : 2; // enum FormattingFlags
>>>>> -  unsigned Misc : 4;
>>>>> +  unsigned Misc : 5;
>>>>>    unsigned Position = 0;       // Position of last occurrence of the
>>>>> option
>>>>>    unsigned AdditionalVals = 0; // Greater than 0 for multi-valued
>>>>> option.
>>>>>
>>>>> @@ -306,6 +309,7 @@ public:
>>>>>    bool hasArgStr() const { return !ArgStr.empty(); }
>>>>>    bool isPositional() const { return getFormattingFlag() ==
>>>>> cl::Positional; }
>>>>>    bool isSink() const { return getMiscFlags() & cl::Sink; }
>>>>> +  bool isDefaultOption() const { return getMiscFlags() &
>>>>> cl::DefaultOption; }
>>>>>
>>>>>    bool isConsumeAfter() const {
>>>>>      return getNumOccurrencesFlag() == cl::ConsumeAfter;
>>>>> @@ -382,7 +386,7 @@ public:
>>>>>    }
>>>>>
>>>>>    inline int getNumOccurrences() const { return NumOccurrences; }
>>>>> -  inline void reset() { NumOccurrences = 0; }
>>>>> +  void reset();
>>>>>  };
>>>>>
>>>>>
>>>>>  //===----------------------------------------------------------------------===//
>>>>> @@ -1732,7 +1736,10 @@ class alias : public Option {
>>>>>        error("cl::alias must have argument name specified!");
>>>>>      if (!AliasFor)
>>>>>        error("cl::alias must have an cl::aliasopt(option) specified!");
>>>>> +    if (!Subs.empty())
>>>>> +      error("cl::alias must not have cl::sub(), aliased option's
>>>>> cl::sub() will be used!");
>>>>>      Subs = AliasFor->Subs;
>>>>> +    Category = AliasFor->Category;
>>>>>      addArgument();
>>>>>    }
>>>>>
>>>>>
>>>>> Modified: llvm/trunk/lib/Support/CommandLine.cpp
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/CommandLine.cpp?rev=358337&r1=358336&r2=358337&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- llvm/trunk/lib/Support/CommandLine.cpp (original)
>>>>> +++ llvm/trunk/lib/Support/CommandLine.cpp Sat Apr 13 09:55:28 2019
>>>>> @@ -98,6 +98,11 @@ public:
>>>>>    // This collects additional help to be printed.
>>>>>    std::vector<StringRef> MoreHelp;
>>>>>
>>>>> +  // This collects Options added with the cl::DefaultOption flag.
>>>>> Since they can
>>>>> +  // be overridden, they are not added to the appropriate SubCommands
>>>>> until
>>>>> +  // ParseCommandLineOptions actually runs.
>>>>> +  SmallVector<Option*, 4> DefaultOptions;
>>>>> +
>>>>>    // This collects the different option categories that have been
>>>>> registered.
>>>>>    SmallPtrSet<OptionCategory *, 16> RegisteredOptionCategories;
>>>>>
>>>>> @@ -146,6 +151,11 @@ public:
>>>>>    void addOption(Option *O, SubCommand *SC) {
>>>>>      bool HadErrors = false;
>>>>>      if (O->hasArgStr()) {
>>>>> +      // If it's a DefaultOption, check to make sure it isn't already
>>>>> there.
>>>>> +      if (O->isDefaultOption() &&
>>>>> +          SC->OptionsMap.find(O->ArgStr) != SC->OptionsMap.end())
>>>>> +        return;
>>>>> +
>>>>>        // Add argument to the argument map!
>>>>>        if (!SC->OptionsMap.insert(std::make_pair(O->ArgStr,
>>>>> O)).second) {
>>>>>          errs() << ProgramName << ": CommandLine Error: Option '" <<
>>>>> O->ArgStr
>>>>> @@ -185,7 +195,12 @@ public:
>>>>>      }
>>>>>    }
>>>>>
>>>>> -  void addOption(Option *O) {
>>>>> +  void addOption(Option *O, bool ProcessDefaultOption = false) {
>>>>> +    if (!ProcessDefaultOption && O->isDefaultOption()) {
>>>>> +      DefaultOptions.push_back(O);
>>>>> +      return;
>>>>> +    }
>>>>> +
>>>>>      if (O->Subs.empty()) {
>>>>>        addOption(O, &*TopLevelSubCommand);
>>>>>      } else {
>>>>> @@ -201,8 +216,12 @@ public:
>>>>>        OptionNames.push_back(O->ArgStr);
>>>>>
>>>>>      SubCommand &Sub = *SC;
>>>>> -    for (auto Name : OptionNames)
>>>>> -      Sub.OptionsMap.erase(Name);
>>>>> +    auto End = Sub.OptionsMap.end();
>>>>> +    for (auto Name : OptionNames) {
>>>>> +      auto I = Sub.OptionsMap.find(Name);
>>>>> +      if (I != End && I->getValue() == O)
>>>>> +        Sub.OptionsMap.erase(I);
>>>>> +      }
>>>>>
>>>>>      if (O->getFormattingFlag() == cl::Positional)
>>>>>        for (auto Opt = Sub.PositionalOpts.begin();
>>>>> @@ -266,8 +285,13 @@ public:
>>>>>      if (O->Subs.empty())
>>>>>        updateArgStr(O, NewName, &*TopLevelSubCommand);
>>>>>      else {
>>>>> -      for (auto SC : O->Subs)
>>>>> -        updateArgStr(O, NewName, SC);
>>>>> +      if (O->isInAllSubCommands()) {
>>>>> +        for (auto SC : RegisteredSubCommands)
>>>>> +          updateArgStr(O, NewName, SC);
>>>>> +      } else {
>>>>> +        for (auto SC : O->Subs)
>>>>> +          updateArgStr(O, NewName, SC);
>>>>> +      }
>>>>>      }
>>>>>    }
>>>>>
>>>>> @@ -366,6 +390,13 @@ void Option::setArgStr(StringRef S) {
>>>>>    ArgStr = S;
>>>>>  }
>>>>>
>>>>> +void Option::reset() {
>>>>> +  NumOccurrences = 0;
>>>>> +  setDefault();
>>>>> +  if (isDefaultOption())
>>>>> +    removeArgument();
>>>>> +}
>>>>> +
>>>>>  // Initialise the general option category.
>>>>>  OptionCategory llvm::cl::GeneralCategory("General options");
>>>>>
>>>>> @@ -1167,6 +1198,10 @@ bool CommandLineParser::ParseCommandLine
>>>>>    auto &SinkOpts = ChosenSubCommand->SinkOpts;
>>>>>    auto &OptionsMap = ChosenSubCommand->OptionsMap;
>>>>>
>>>>> +  for (auto O: DefaultOptions) {
>>>>> +    addOption(O, true);
>>>>> +  }
>>>>> +
>>>>>    if (ConsumeAfterOpt) {
>>>>>      assert(PositionalOpts.size() > 0 &&
>>>>>             "Cannot specify cl::ConsumeAfter without a positional
>>>>> argument!");
>>>>> @@ -2146,6 +2181,9 @@ static cl::opt<HelpPrinterWrapper, true,
>>>>>          cl::location(WrappedNormalPrinter), cl::ValueDisallowed,
>>>>>          cl::cat(GenericCategory), cl::sub(*AllSubCommands));
>>>>>
>>>>> +static cl::alias HOpA("h", cl::desc("Alias for -help"),
>>>>> cl::aliasopt(HOp),
>>>>> +                      cl::DefaultOption);
>>>>> +
>>>>>  static cl::opt<HelpPrinterWrapper, true, parser<bool>>
>>>>>      HHOp("help-hidden", cl::desc("Display all available options"),
>>>>>           cl::location(WrappedHiddenPrinter), cl::Hidden,
>>>>> cl::ValueDisallowed,
>>>>>
>>>>> Added: llvm/trunk/test/Support/check-default-options.txt
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Support/check-default-options.txt?rev=358337&view=auto
>>>>>
>>>>> ==============================================================================
>>>>> --- llvm/trunk/test/Support/check-default-options.txt (added)
>>>>> +++ llvm/trunk/test/Support/check-default-options.txt Sat Apr 13
>>>>> 09:55:28 2019
>>>>> @@ -0,0 +1,18 @@
>>>>> +# RUN: llvm-objdump -help-hidden %t | FileCheck
>>>>> --check-prefix=CHECK-OBJDUMP %s
>>>>> +# RUN: llvm-readobj -help-hidden %t | FileCheck
>>>>> --check-prefix=CHECK-READOBJ %s
>>>>> +# RUN: llvm-tblgen -help-hidden %t | FileCheck
>>>>> --check-prefix=CHECK-TBLGEN %s
>>>>> +# RUN: llvm-opt-report -help-hidden %t | FileCheck
>>>>> --check-prefix=CHECK-OPT-RPT %s
>>>>> +# RUN: llvm-dwarfdump -help-hidden %t | FileCheck
>>>>> --check-prefix=CHECK-DWARF %s
>>>>> +# RUN: llvm-dwarfdump -h %t | FileCheck --check-prefix=CHECK-DWARF-H
>>>>> %s
>>>>> +
>>>>> +
>>>>> +# CHECK-OBJDUMP: -h  - Alias for --section-headers
>>>>> +# CHECK-READOBJ: -h  - Alias for --file-headers
>>>>> +# CHECK-TBLGEN:  -h  - Alias for -help
>>>>> +# CHECK-OPT-RPT: -h  - Alias for -help
>>>>> +# CHECK-DWARF:   -h  - Alias for -help
>>>>> +
>>>>> +# llvm-dwarfdump declares `-h` option and prints special help in that
>>>>> case,
>>>>> +# which is weird, but makes for a good test, i.e., shows the default
>>>>> `-h`
>>>>> +# wasn't used.
>>>>> +# CHECK-DWARF-H-NOT: -help-list  - Display list of available options
>>>>> (-help-list-hidden for more)
>>>>>
>>>>> Modified: llvm/trunk/tools/llvm-opt-report/OptReport.cpp
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-opt-report/OptReport.cpp?rev=358337&r1=358336&r2=358337&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- llvm/trunk/tools/llvm-opt-report/OptReport.cpp (original)
>>>>> +++ llvm/trunk/tools/llvm-opt-report/OptReport.cpp Sat Apr 13 09:55:28
>>>>> 2019
>>>>> @@ -36,8 +36,6 @@
>>>>>  using namespace llvm;
>>>>>  using namespace llvm::yaml;
>>>>>
>>>>> -static cl::opt<bool> Help("h", cl::desc("Alias for -help"),
>>>>> cl::Hidden);
>>>>> -
>>>>>  // Mark all our options with this category, everything else (except
>>>>> for -version
>>>>>  // and -help) will be hidden.
>>>>>  static cl::OptionCategory
>>>>> @@ -440,11 +438,6 @@ int main(int argc, const char **argv) {
>>>>>        "A tool to generate an optimization report from YAML
>>>>> optimization"
>>>>>        " record files.\n");
>>>>>
>>>>> -  if (Help) {
>>>>> -    cl::PrintHelpMessage();
>>>>> -    return 0;
>>>>> -  }
>>>>> -
>>>>>    LocationInfoTy LocationInfo;
>>>>>    if (!readLocationInfo(LocationInfo))
>>>>>      return 1;
>>>>>
>>>>> Modified: llvm/trunk/unittests/Support/CommandLineTest.cpp
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/Support/CommandLineTest.cpp?rev=358337&r1=358336&r2=358337&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- llvm/trunk/unittests/Support/CommandLineTest.cpp (original)
>>>>> +++ llvm/trunk/unittests/Support/CommandLineTest.cpp Sat Apr 13
>>>>> 09:55:28 2019
>>>>> @@ -620,6 +620,67 @@ TEST(CommandLineTest, GetRegisteredSubco
>>>>>    }
>>>>>  }
>>>>>
>>>>> +TEST(CommandLineTest, DefaultOptions) {
>>>>> +  cl::ResetCommandLineParser();
>>>>> +
>>>>> +  StackOption<std::string> Bar("bar", cl::sub(*cl::AllSubCommands),
>>>>> +                               cl::DefaultOption);
>>>>> +  StackOption<std::string, cl::alias> Bar_Alias(
>>>>> +      "b", cl::desc("Alias for -bar"), cl::aliasopt(Bar),
>>>>> cl::DefaultOption);
>>>>> +
>>>>> +  StackOption<bool> Foo("foo", cl::init(false),
>>>>> cl::sub(*cl::AllSubCommands),
>>>>> +                        cl::DefaultOption);
>>>>> +  StackOption<bool, cl::alias> Foo_Alias("f", cl::desc("Alias for
>>>>> -foo"),
>>>>> +                                         cl::aliasopt(Foo),
>>>>> cl::DefaultOption);
>>>>> +
>>>>> +  StackSubCommand SC1("sc1", "First Subcommand");
>>>>> +  // Override "-b" and change type in sc1 SubCommand.
>>>>> +  StackOption<bool> SC1_B("b", cl::sub(SC1), cl::init(false));
>>>>> +  StackSubCommand SC2("sc2", "Second subcommand");
>>>>> +  // Override "-foo" and change type in sc2 SubCommand.  Note that
>>>>> this does not
>>>>> +  // affect "-f" alias, which continues to work correctly.
>>>>> +  StackOption<std::string> SC2_Foo("foo", cl::sub(SC2));
>>>>> +
>>>>> +  const char *args0[] = {"prog", "-b", "args0 bar string", "-f"};
>>>>> +  EXPECT_TRUE(cl::ParseCommandLineOptions(sizeof(args0) / sizeof(char
>>>>> *), args0,
>>>>> +                                          StringRef(),
>>>>> &llvm::nulls()));
>>>>> +  EXPECT_TRUE(Bar == "args0 bar string");
>>>>> +  EXPECT_TRUE(Foo);
>>>>> +  EXPECT_FALSE(SC1_B);
>>>>> +  EXPECT_TRUE(SC2_Foo.empty());
>>>>> +
>>>>> +  cl::ResetAllOptionOccurrences();
>>>>> +
>>>>> +  const char *args1[] = {"prog", "sc1", "-b", "-bar", "args1 bar
>>>>> string", "-f"};
>>>>> +  EXPECT_TRUE(cl::ParseCommandLineOptions(sizeof(args1) / sizeof(char
>>>>> *), args1,
>>>>> +                                          StringRef(),
>>>>> &llvm::nulls()));
>>>>> +  EXPECT_TRUE(Bar == "args1 bar string");
>>>>> +  EXPECT_TRUE(Foo);
>>>>> +  EXPECT_TRUE(SC1_B);
>>>>> +  EXPECT_TRUE(SC2_Foo.empty());
>>>>> +  for (auto *S : cl::getRegisteredSubcommands()) {
>>>>> +    if (*S) {
>>>>> +      EXPECT_EQ("sc1", S->getName());
>>>>> +    }
>>>>> +  }
>>>>> +
>>>>> +  cl::ResetAllOptionOccurrences();
>>>>> +
>>>>> +  const char *args2[] = {"prog", "sc2", "-b", "args2 bar string",
>>>>> +                         "-f", "-foo", "foo string"};
>>>>> +  EXPECT_TRUE(cl::ParseCommandLineOptions(sizeof(args2) / sizeof(char
>>>>> *), args2,
>>>>> +                                          StringRef(),
>>>>> &llvm::nulls()));
>>>>> +  EXPECT_TRUE(Bar == "args2 bar string");
>>>>> +  EXPECT_TRUE(Foo);
>>>>> +  EXPECT_FALSE(SC1_B);
>>>>> +  EXPECT_TRUE(SC2_Foo == "foo string");
>>>>> +  for (auto *S : cl::getRegisteredSubcommands()) {
>>>>> +    if (*S) {
>>>>> +      EXPECT_EQ("sc2", S->getName());
>>>>> +    }
>>>>> +  }
>>>>> +}
>>>>> +
>>>>>  TEST(CommandLineTest, ArgumentLimit) {
>>>>>    std::string args(32 * 4096, 'a');
>>>>>    EXPECT_FALSE(llvm::sys::commandLineFitsWithinSystemLimits("cl",
>>>>> args.data()));
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> llvm-commits mailing list
>>>>> llvm-commits at lists.llvm.org
>>>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Ilya Biryukov
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Ilya Biryukov
>>>
>>
>
> --
> Regards,
> Ilya Biryukov
>
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