1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/tools/llvm-lto2/llvm-lto2.cpp b/llvm/tools/llvm-lto2/llvm-lto2.cpp
index da2703fd50a..5db441fff25 100644
--- a/llvm/tools/llvm-lto2/llvm-lto2.cpp
+++ b/llvm/tools/llvm-lto2/llvm-lto2.cpp
@@ -109,6 +109,10 @@ static cl::opt<bool>
              cl::desc("Run LTO passes using the new pass manager"),
              cl::init(false), cl::Hidden);
 
+static cl::opt<bool>
+    DebugPassManager("debug-pass-manager", cl::init(false), cl::Hidden,
+                     cl::desc("Print pass management debugging information"));
+
 static void check(Error E, std::string Msg) {
   if (!E)
     return;
@@ -195,6 +199,8 @@ static int run(int argc, char **argv) {
     Conf.RelocModel = *RM;
   Conf.CodeModel = CMModel;
 
+  Conf.DebugPassManager = DebugPassManager;
+
   if (SaveTemps)
     check(Conf.addSaveTemps(OutputFilename + "."),
           "Config::addSaveTemps failed");