[Support][CommandLine] Display subcommands in help when there are less than 3

hyp · hyp · commit d68028789807 · 2016-10-12T10:04:35.000Z
subcommands This commit fixes a bug where the help output doesn't display subcommands when a tool has less than 3 subcommands. This change doesn't include a corresponding unittest as there is no viable way to provide a unittest for it. Differential Revision: https://reviews.llvm.org/D25463 llvm-svn: 283998
diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
@@ -1780,7 +1780,7 @@ class HelpPrinter {
     if (ConsumeAfterOpt)
       outs() << " " << ConsumeAfterOpt->HelpStr;
 
-    if (Sub == &*TopLevelSubCommand && Subs.size() > 2) {
+    if (Sub == &*TopLevelSubCommand && !Subs.empty()) {
       // Compute the maximum subcommand length...
       size_t MaxSubLen = 0;
       for (size_t i = 0, e = Subs.size(); i != e; ++i)
