REPOSITORY
  rL LLVM

http://reviews.llvm.org/D10738

Files:
  cfe/trunk/lib/Driver/Driver.cpp
  cfe/trunk/lib/Driver/ToolChains.cpp
  cfe/trunk/lib/Driver/Tools.cpp

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Index: cfe/trunk/lib/Driver/Driver.cpp
===================================================================
--- cfe/trunk/lib/Driver/Driver.cpp
+++ cfe/trunk/lib/Driver/Driver.cpp
@@ -83,11 +83,11 @@
   const std::string OptName =
     getOpts().getOption(options::OPT_driver_mode).getPrefixedName();
 
-  for (size_t I = 0, E = Args.size(); I != E; ++I) {
+  for (const char *ArgPtr : Args) {
     // Ingore nullptrs, they are response file's EOL markers
-    if (Args[I] == nullptr)
+    if (ArgPtr == nullptr)
       continue;
-    const StringRef Arg = Args[I];
+    const StringRef Arg = ArgPtr;
     if (!Arg.startswith(OptName))
       continue;
 
@@ -613,10 +613,9 @@
 
   // Otherwise, remove result files and print extra information about abnormal
   // failures.
-  for (SmallVectorImpl< std::pair<int, const Command *> >::iterator it =
-         FailingCommands.begin(), ie = FailingCommands.end(); it != ie; ++it) {
-    int Res = it->first;
-    const Command *FailingCommand = it->second;
+  for (const auto &CmdPair : FailingCommands) {
+    int Res = CmdPair.first;
+    const Command *FailingCommand = CmdPair.second;
 
     // Remove result files if we're not saving temps.
     if (!isSaveTempsEnabled()) {
@@ -792,13 +791,11 @@
   }
 
   if (C.getArgs().hasArg(options::OPT_print_multi_directory)) {
-    const MultilibSet &Multilibs = TC.getMultilibs();
-    for (MultilibSet::const_iterator I = Multilibs.begin(), E = Multilibs.end();
-         I != E; ++I) {
-      if (I->gccSuffix().empty())
+    for (const auto &Multilib : TC.getMultilibs()) {
+      if (Multilib.gccSuffix().empty())
         llvm::outs() << ".\n";
       else {
-        StringRef Suffix(I->gccSuffix());
+        StringRef Suffix(Multilib.gccSuffix());
         assert(Suffix.front() == '/');
         llvm::outs() << Suffix.substr(1) << "\n";
       }
Index: cfe/trunk/lib/Driver/Tools.cpp
===================================================================
--- cfe/trunk/lib/Driver/Tools.cpp
+++ cfe/trunk/lib/Driver/Tools.cpp
@@ -2188,8 +2188,7 @@
          Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
       A->claim();
 
-      for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
-        StringRef Value = A->getValue(i);
+      for (const StringRef Value : A->getValues()) {
         if (TakeNextArg) {
           CmdArgs.push_back(Value.data());
           TakeNextArg = false;
@@ -4828,9 +4827,9 @@
 
     SmallString<256> Flags;
     Flags += Exec;
-    for (unsigned i = 0, e = OriginalArgs.size(); i != e; ++i) {
+    for (const char *OriginalArg : OriginalArgs) {
       SmallString<128> EscapedArg;
-      EscapeSpacesAndBackslashes(OriginalArgs[i], EscapedArg);
+      EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
       Flags += " ";
       Flags += EscapedArg;
     }
@@ -5291,9 +5290,9 @@
     SmallString<256> Flags;
     const char *Exec = getToolChain().getDriver().getClangProgramPath();
     Flags += Exec;
-    for (unsigned i = 0, e = OriginalArgs.size(); i != e; ++i) {
+    for (const char *OriginalArg : OriginalArgs) {
       SmallString<128> EscapedArg;
-      EscapeSpacesAndBackslashes(OriginalArgs[i], EscapedArg);
+      EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
       Flags += " ";
       Flags += EscapedArg;
     }
Index: cfe/trunk/lib/Driver/ToolChains.cpp
===================================================================
--- cfe/trunk/lib/Driver/ToolChains.cpp
+++ cfe/trunk/lib/Driver/ToolChains.cpp
@@ -697,11 +697,9 @@
       // "input arguments".
       if (A->getOption().hasFlag(options::LinkerInput)) {
         // Convert the argument into individual Zlinker_input_args.
-        for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
-          DAL->AddSeparateArg(OriginalArg,
-                              Opts.getOption(options::OPT_Zlinker_input),
-                              A->getValue(i));
-
+        for (const char *Value : A->getValues()) {
+          DAL->AddSeparateArg(
+              OriginalArg, Opts.getOption(options::OPT_Zlinker_input), Value);
         }
         continue;
       }
@@ -1231,25 +1229,22 @@
   // Loop over the various components which exist and select the best GCC
   // installation available. GCC installs are ranked by version number.
   Version = GCCVersion::Parse("0.0.0");
-  for (unsigned i = 0, ie = Prefixes.size(); i < ie; ++i) {
-    if (!llvm::sys::fs::exists(Prefixes[i]))
+  for (const std::string &Prefix : Prefixes) {
+    if (!llvm::sys::fs::exists(Prefix))
       continue;
-    for (unsigned j = 0, je = CandidateLibDirs.size(); j < je; ++j) {
-      const std::string LibDir = Prefixes[i] + CandidateLibDirs[j].str();
+    for (const StringRef Suffix : CandidateLibDirs) {
+      const std::string LibDir = Prefix + Suffix.str();
       if (!llvm::sys::fs::exists(LibDir))
         continue;
-      for (unsigned k = 0, ke = CandidateTripleAliases.size(); k < ke; ++k)
-        ScanLibDirForGCCTriple(TargetTriple, Args, LibDir,
-                               CandidateTripleAliases[k]);
+      for (const StringRef Candidate : CandidateTripleAliases)
+        ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
     }
-    for (unsigned j = 0, je = CandidateBiarchLibDirs.size(); j < je; ++j) {
-      const std::string LibDir = Prefixes[i] + CandidateBiarchLibDirs[j].str();
+    for (const StringRef Suffix : CandidateBiarchLibDirs) {
+      const std::string LibDir = Prefix + Suffix.str();
       if (!llvm::sys::fs::exists(LibDir))
         continue;
-      for (unsigned k = 0, ke = CandidateBiarchTripleAliases.size(); k < ke;
-           ++k)
-        ScanLibDirForGCCTriple(TargetTriple, Args, LibDir,
-                               CandidateBiarchTripleAliases[k],
+      for (const StringRef Candidate : CandidateBiarchTripleAliases)
+        ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate,
                                /*NeedsBiarchSuffix=*/ true);
     }
   }
@@ -2165,9 +2160,9 @@
   //----------------------------------------------------------------------------
   // -L Args
   //----------------------------------------------------------------------------
-  for (const Arg *A : Args.filtered(options::OPT_L))
-    for (unsigned i = 0, e = A->getNumValues(); i != e; ++i)
-      LibPaths->push_back(A->getValue(i));
+  for (Arg *A : Args.filtered(options::OPT_L))
+    for (const char *Value : A->getValues())
+      LibPaths->push_back(Value);
 
   //----------------------------------------------------------------------------
   // Other standard paths
@@ -2959,25 +2954,25 @@
     SmallVector<StringRef, 16> Lines;
     Data.split(Lines, "\n");
     Distro Version = UnknownDistro;
-    for (unsigned i = 0, s = Lines.size(); i != s; ++i)
-      if (Version == UnknownDistro && Lines[i].startswith("DISTRIB_CODENAME="))
-        Version = llvm::StringSwitch<Distro>(Lines[i].substr(17))
-          .Case("hardy", UbuntuHardy)
-          .Case("intrepid", UbuntuIntrepid)
-          .Case("jaunty", UbuntuJaunty)
-          .Case("karmic", UbuntuKarmic)
-          .Case("lucid", UbuntuLucid)
-          .Case("maverick", UbuntuMaverick)
-          .Case("natty", UbuntuNatty)
-          .Case("oneiric", UbuntuOneiric)
-          .Case("precise", UbuntuPrecise)
-          .Case("quantal", UbuntuQuantal)
-          .Case("raring", UbuntuRaring)
-          .Case("saucy", UbuntuSaucy)
-          .Case("trusty", UbuntuTrusty)
-          .Case("utopic", UbuntuUtopic)
-          .Case("vivid", UbuntuVivid)
-          .Default(UnknownDistro);
+    for (const StringRef Line : Lines)
+      if (Version == UnknownDistro && Line.startswith("DISTRIB_CODENAME="))
+        Version = llvm::StringSwitch<Distro>(Line.substr(17))
+                      .Case("hardy", UbuntuHardy)
+                      .Case("intrepid", UbuntuIntrepid)
+                      .Case("jaunty", UbuntuJaunty)
+                      .Case("karmic", UbuntuKarmic)
+                      .Case("lucid", UbuntuLucid)
+                      .Case("maverick", UbuntuMaverick)
+                      .Case("natty", UbuntuNatty)
+                      .Case("oneiric", UbuntuOneiric)
+                      .Case("precise", UbuntuPrecise)
+                      .Case("quantal", UbuntuQuantal)
+                      .Case("raring", UbuntuRaring)
+                      .Case("saucy", UbuntuSaucy)
+                      .Case("trusty", UbuntuTrusty)
+                      .Case("utopic", UbuntuUtopic)
+                      .Case("vivid", UbuntuVivid)
+                      .Default(UnknownDistro);
     return Version;
   }
 
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