Revert r358337: "[CommandLineParser] Add DefaultOption flag"

The change causes test failures under asan. Reverting to unbreak our
integrate.

llvm-svn: 358414

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/tools/llvm-opt-report/OptReport.cpp b/llvm/tools/llvm-opt-report/OptReport.cpp
index a6ca6146b48..3ea71fc47ef 100644
--- a/llvm/tools/llvm-opt-report/OptReport.cpp
+++ b/llvm/tools/llvm-opt-report/OptReport.cpp
@@ -36,6 +36,8 @@
 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
@@ -438,6 +440,11 @@ 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;