[llvm-profdata] Make -debug-info visible

Add the option comment in .rst.

Reviewed By: ellis

Differential Revision: https://reviews.llvm.org/D116348

llvm/docs/CommandGuide/llvm-profdata.rst

@@ -185,6 +185,13 @@ OPTIONS
  inlined by PGO early inliner and it will not be adjusted based on sample
  profile.
 
+.. option:: -debug-info=path
+
+ Specify the executable or `.dSYM` that contains debug info for the raw profile.
+ When `-debug-info-correlate` was used for instrumentation, use this option
+ to correlate the raw profile.
+
+
 EXAMPLES
 ^^^^^^^^
 Basic Usage

llvm/tools/llvm-profdata/llvm-profdata.cpp

@@ -968,7 +968,7 @@ static int merge_main(int argc, const char *argv[]) {
       "gen-cs-nested-profile", cl::Hidden, cl::init(false),
       cl::desc("Generate nested function profiles for CSSPGO"));
   cl::opt<std::string> DebugInfoFilename(
-      "debug-info", cl::init(""), cl::Hidden,
+      "debug-info", cl::init(""),
       cl::desc("Use the provided debug info to correlate the raw profile."));
 
   cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");