hintonda updated this revision to Diff 197271.
hintonda added a comment.
Herald added subscribers: cfe-commits, thopre.
Herald added a project: clang.

- Fix test.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61270/new/

https://reviews.llvm.org/D61270

Files:
  clang/test/Driver/clang-offload-bundler.c
  llvm/include/llvm/Support/CommandLine.h
  llvm/lib/Support/CommandLine.cpp
  llvm/test/FileCheck/dump-input-enable.txt
  llvm/test/Support/check-default-options.txt
  llvm/test/tools/llvm-readobj/merged.test

Index: llvm/test/tools/llvm-readobj/merged.test
===================================================================
--- llvm/test/tools/llvm-readobj/merged.test
+++ llvm/test/tools/llvm-readobj/merged.test
@@ -10,4 +10,4 @@
 RUN: not llvm-readobj -aeWhSrnudlVgIs %p/Inputs/trivial.obj.elf-i386 2>&1 | FileCheck %s --check-prefix=UNKNOWN
 
 CHECK-NOT: Unknown command line argument
-UNKNOWN:   Unknown command line argument
+UNKNOWN:   for the --section-headers option: may only occur zero or one times!
Index: llvm/test/Support/check-default-options.txt
===================================================================
--- llvm/test/Support/check-default-options.txt
+++ llvm/test/Support/check-default-options.txt
@@ -1,18 +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-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-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)
+# CHECK-DWARF-H-NOT: --help-list  - Display list of available options (--help-list-hidden for more)
Index: llvm/test/FileCheck/dump-input-enable.txt
===================================================================
--- llvm/test/FileCheck/dump-input-enable.txt
+++ llvm/test/FileCheck/dump-input-enable.txt
@@ -26,7 +26,7 @@
 ; RUN: not FileCheck -dump-input=foobar 2>&1 \
 ; RUN: | FileCheck %s -match-full-lines -check-prefix=BADVAL
 
-BADVAL: {{F|f}}ile{{C|c}}heck{{.*}}: for the -dump-input option: Cannot find option named 'foobar'!
+BADVAL: {{F|f}}ile{{C|c}}heck{{.*}}: for the --dump-input option: Cannot find option named 'foobar'!
 
 ;--------------------------------------------------
 ; Check -dump-input=help.
Index: llvm/lib/Support/CommandLine.cpp
===================================================================
--- llvm/lib/Support/CommandLine.cpp
+++ llvm/lib/Support/CommandLine.cpp
@@ -88,6 +88,22 @@
 
 //===----------------------------------------------------------------------===//
 
+static StringRef ArgPrefix = "  -";
+static StringRef ArgPrefixLong = "  --";
+static StringRef ArgHelpPrefix = " - ";
+
+static size_t argPrefixesSize(size_t len) {
+  if (len == 1)
+    return ArgPrefix.size() + ArgHelpPrefix.size();
+  return ArgPrefixLong.size() + ArgHelpPrefix.size();
+}
+
+static StringRef argPrefix(size_t len) {
+  if (len == 1)
+    return ArgPrefix;
+  return ArgPrefixLong;
+}
+
 namespace {
 
 class CommandLineParser {
@@ -392,6 +408,8 @@
     GlobalParser->updateArgStr(this, S);
   assert((S.empty() || S[0] != '-') && "Option can't start with '-");
   ArgStr = S;
+  if (ArgStr.size() == 1)
+    setMiscFlag(Grouping);
 }
 
 void Option::reset() {
@@ -1339,12 +1357,13 @@
     if (!Handler) {
       if (SinkOpts.empty()) {
         *Errs << ProgramName << ": Unknown command line argument '" << argv[i]
-              << "'.  Try: '" << argv[0] << " -help'\n";
+              << "'.  Try: '" << argv[0] << " --help'\n";
 
         if (NearestHandler) {
           // If we know a near match, report it as well.
-          *Errs << ProgramName << ": Did you mean '-" << NearestHandlerString
-                 << "'?\n";
+          *Errs << ProgramName << ": Did you mean '"
+                << argPrefix(NearestHandler->ArgStr.size())
+                << NearestHandlerString << "'?\n";
         }
 
         ErrorParsing = true;
@@ -1378,14 +1397,14 @@
              << ": Not enough positional command line arguments specified!\n"
              << "Must specify at least " << NumPositionalRequired
              << " positional argument" << (NumPositionalRequired > 1 ? "s" : "")
-             << ": See: " << argv[0] << " -help\n";
+             << ": See: " << argv[0] << " --help\n";
 
     ErrorParsing = true;
   } else if (!HasUnlimitedPositionals &&
              PositionalVals.size() > PositionalOpts.size()) {
     *Errs << ProgramName << ": Too many positional arguments specified!\n"
           << "Can specify at most " << PositionalOpts.size()
-          << " positional arguments: See: " << argv[0] << " -help\n";
+          << " positional arguments: See: " << argv[0] << " --help\n";
     ErrorParsing = true;
 
   } else if (!ConsumeAfterOpt) {
@@ -1498,7 +1517,8 @@
   if (ArgName.empty())
     Errs << HelpStr; // Be nice for positional arguments
   else
-    Errs << GlobalParser->ProgramName << ": for the -" << ArgName;
+    Errs << GlobalParser->ProgramName << ": for the "
+         << argPrefix(ArgName.size()) << ArgName;
 
   Errs << " option: " << Message << "\n";
   return true;
@@ -1536,16 +1556,14 @@
   return O.ValueStr;
 }
 
-static StringRef ArgPrefix = "  -";
-static StringRef ArgHelpPrefix = " - ";
-static size_t ArgPrefixesSize = ArgPrefix.size() + ArgHelpPrefix.size();
-
 //===----------------------------------------------------------------------===//
 // cl::alias class implementation
 //
 
 // Return the width of the option tag for printing...
-size_t alias::getOptionWidth() const { return ArgStr.size() + ArgPrefixesSize; }
+size_t alias::getOptionWidth() const {
+  return ArgStr.size() + argPrefixesSize(ArgStr.size());
+}
 
 void Option::printHelpStr(StringRef HelpStr, size_t Indent,
                           size_t FirstLineIndentedBy) {
@@ -1561,8 +1579,9 @@
 
 // Print out the option for the alias.
 void alias::printOptionInfo(size_t GlobalWidth) const {
-  outs() << ArgPrefix << ArgStr;
-  printHelpStr(HelpStr, GlobalWidth, ArgStr.size() + ArgPrefixesSize);
+  outs() << argPrefix(ArgStr.size()) << ArgStr;
+  printHelpStr(HelpStr, GlobalWidth,
+               ArgStr.size() + argPrefixesSize(ArgStr.size()));
 }
 
 //===----------------------------------------------------------------------===//
@@ -1583,7 +1602,7 @@
     Len += getValueStr(O, ValName).size() + FormattingLen;
   }
 
-  return Len + ArgPrefixesSize;
+  return Len + argPrefixesSize(O.ArgStr.size());
 }
 
 // printOptionInfo - Print out information about this option.  The
@@ -1591,7 +1610,7 @@
 //
 void basic_parser_impl::printOptionInfo(const Option &O,
                                         size_t GlobalWidth) const {
-  outs() << ArgPrefix << O.ArgStr;
+  outs() << argPrefix(O.ArgStr.size()) << O.ArgStr;
 
   auto ValName = getValueName();
   if (!ValName.empty()) {
@@ -1607,7 +1626,7 @@
 
 void basic_parser_impl::printOptionName(const Option &O,
                                         size_t GlobalWidth) const {
-  outs() << ArgPrefix << O.ArgStr;
+  outs() << argPrefix(O.ArgStr.size()) << O.ArgStr;
   outs().indent(GlobalWidth - O.ArgStr.size());
 }
 
@@ -1739,7 +1758,8 @@
 // Return the width of the option tag for printing...
 size_t generic_parser_base::getOptionWidth(const Option &O) const {
   if (O.hasArgStr()) {
-    size_t Size = O.ArgStr.size() + ArgPrefixesSize + EqValue.size();
+    size_t Size =
+        O.ArgStr.size() + argPrefixesSize(O.ArgStr.size()) + EqValue.size();
     for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
       StringRef Name = getOption(i);
       if (!shouldPrintOption(Name, getDescription(i), O))
@@ -1767,17 +1787,19 @@
     if (O.getValueExpectedFlag() == ValueOptional) {
       for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
         if (getOption(i).empty()) {
-          outs() << ArgPrefix << O.ArgStr;
+          outs() << argPrefix(O.ArgStr.size()) << O.ArgStr;
           Option::printHelpStr(O.HelpStr, GlobalWidth,
-                               O.ArgStr.size() + ArgPrefixesSize);
+                               O.ArgStr.size() +
+                                   argPrefixesSize(O.ArgStr.size()));
           break;
         }
       }
     }
 
-    outs() << ArgPrefix << O.ArgStr << EqValue;
+    outs() << argPrefix(O.ArgStr.size()) << O.ArgStr << EqValue;
     Option::printHelpStr(O.HelpStr, GlobalWidth,
-                         O.ArgStr.size() + EqValue.size() + ArgPrefixesSize);
+                         O.ArgStr.size() + EqValue.size() +
+                             argPrefixesSize(O.ArgStr.size()));
     for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
       StringRef OptionName = getOption(i);
       StringRef Description = getDescription(i);
@@ -1799,8 +1821,8 @@
     if (!O.HelpStr.empty())
       outs() << "  " << O.HelpStr << '\n';
     for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
-      auto Option = getOption(i);
-      outs() << "    -" << Option;
+      StringRef Option = getOption(i);
+      outs() << "    " << argPrefix(Option.size()) << Option;
       Option::printHelpStr(getDescription(i), GlobalWidth, Option.size() + 8);
     }
   }
@@ -1814,7 +1836,7 @@
 void generic_parser_base::printGenericOptionDiff(
     const Option &O, const GenericOptionValue &Value,
     const GenericOptionValue &Default, size_t GlobalWidth) const {
-  outs() << "  -" << O.ArgStr;
+  outs() << "  " << argPrefix(O.ArgStr.size()) << O.ArgStr;
   outs().indent(GlobalWidth - O.ArgStr.size());
 
   unsigned NumOpts = getNumOptions();
@@ -2034,7 +2056,7 @@
       printSubCommands(Subs, MaxSubLen);
       outs() << "\n";
       outs() << "  Type \"" << GlobalParser->ProgramName
-             << " <subcommand> -help\" to get more help on a specific "
+             << " <subcommand> --help\" to get more help on a specific "
                 "subcommand";
     }
 
@@ -2111,7 +2133,7 @@
              Category = SortedCategories.begin(),
              E = SortedCategories.end();
          Category != E; ++Category) {
-      // Hide empty categories for -help, but show for -help-hidden.
+      // Hide empty categories for --help, but show for --help-hidden.
       const auto &CategoryOptions = CategorizedOptions[*Category];
       bool IsEmptyCategory = CategoryOptions.empty();
       if (!ShowHidden && IsEmptyCategory)
@@ -2127,7 +2149,7 @@
       else
         outs() << "\n";
 
-      // When using -help-hidden explicitly state if the category has no
+      // When using --help-hidden explicitly state if the category has no
       // options associated with it.
       if (IsEmptyCategory) {
         outs() << "  This option category has no options.\n";
@@ -2177,11 +2199,11 @@
 static cl::OptionCategory GenericCategory("Generic Options");
 
 // Define uncategorized help printers.
-// -help-list is hidden by default because if Option categories are being used
-// then -help behaves the same as -help-list.
+// --help-list is hidden by default because if Option categories are being used
+// then --help behaves the same as --help-list.
 static cl::opt<HelpPrinter, true, parser<bool>> HLOp(
     "help-list",
-    cl::desc("Display list of available options (-help-list-hidden for more)"),
+    cl::desc("Display list of available options (--help-list-hidden for more)"),
     cl::location(UncategorizedNormalPrinter), cl::Hidden, cl::ValueDisallowed,
     cl::cat(GenericCategory), cl::sub(*AllSubCommands));
 
@@ -2195,11 +2217,11 @@
 // behaviour at runtime depending on whether one or more Option categories have
 // been declared.
 static cl::opt<HelpPrinterWrapper, true, parser<bool>>
-    HOp("help", cl::desc("Display available options (-help-hidden for more)"),
+    HOp("help", cl::desc("Display available options (--help-hidden for more)"),
         cl::location(WrappedNormalPrinter), cl::ValueDisallowed,
         cl::cat(GenericCategory), cl::sub(*AllSubCommands));
 
-static cl::alias HOpA("h", cl::desc("Alias for -help"), cl::aliasopt(HOp),
+static cl::alias HOpA("h", cl::desc("Alias for --help"), cl::aliasopt(HOp),
                       cl::DefaultOption);
 
 static cl::opt<HelpPrinterWrapper, true, parser<bool>>
@@ -2226,7 +2248,7 @@
   // registered then it is useful to show the categorized help instead of
   // uncategorized help.
   if (GlobalParser->RegisteredOptionCategories.size() > 1) {
-    // unhide -help-list option so user can have uncategorized output if they
+    // unhide --help-list option so user can have uncategorized output if they
     // want it.
     HLOp.setHiddenFlag(NotHidden);
 
Index: llvm/include/llvm/Support/CommandLine.h
===================================================================
--- llvm/include/llvm/Support/CommandLine.h
+++ llvm/include/llvm/Support/CommandLine.h
@@ -1205,7 +1205,11 @@
 };
 
 template <> struct applicator<MiscFlags> {
-  static void opt(MiscFlags MF, Option &O) { O.setMiscFlag(MF); }
+  static void opt(MiscFlags MF, Option &O) {
+    assert((MF != Grouping || O.ArgStr.size() == 1) &&
+           "cl::Grouping can only apply to single charater Options.");
+    O.setMiscFlag(MF);
+  }
 };
 
 // apply method - Apply modifiers to an option in a type safe way.
Index: clang/test/Driver/clang-offload-bundler.c
===================================================================
--- clang/test/Driver/clang-offload-bundler.c
+++ clang/test/Driver/clang-offload-bundler.c
@@ -74,10 +74,10 @@
 // CK-ERR6: error: invalid file type specified.
 
 // RUN: not clang-offload-bundler 2>&1 | FileCheck %s --check-prefix CK-ERR7
-// CK-ERR7-DAG: clang-offload-bundler: for the -type option: must be specified at least once!
-// CK-ERR7-DAG: clang-offload-bundler: for the -inputs option: must be specified at least once!
-// CK-ERR7-DAG: clang-offload-bundler: for the -outputs option: must be specified at least once!
-// CK-ERR7-DAG: clang-offload-bundler: for the -targets option: must be specified at least once!
+// CK-ERR7-DAG: clang-offload-bundler: for the --type option: must be specified at least once!
+// CK-ERR7-DAG: clang-offload-bundler: for the --inputs option: must be specified at least once!
+// CK-ERR7-DAG: clang-offload-bundler: for the --outputs option: must be specified at least once!
+// CK-ERR7-DAG: clang-offload-bundler: for the --targets option: must be specified at least once!
 
 // RUN: not clang-offload-bundler -type=i -targets=hxst-powerpcxxle-ibm-linux-gnu,openxp-pxxerpc64le-ibm-linux-gnu,xpenmp-x86_xx-pc-linux-gnu -inputs=%t.i,%t.tgt1,%t.tgt2 -outputs=%t.bundle.i 2>&1 | FileCheck %s --check-prefix CK-ERR8
 // CK-ERR8: error: invalid target 'hxst-powerpcxxle-ibm-linux-gnu', unknown offloading kind 'hxst', unknown target triple 'powerpcxxle-ibm-linux-gnu'.
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