[ORC] Add some debugging output to Core.h/Core.cpp

Core now logs when materialization units are dispatched or return to JITDylibs.

llvm-svn: 342853

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/ExecutionEngine/Orc/Core.cpp b/llvm/lib/ExecutionEngine/Orc/Core.cpp
index 780e2fb9802..b1a82e89c6f 100644
--- a/llvm/lib/ExecutionEngine/Orc/Core.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/Core.cpp
@@ -18,6 +18,8 @@
 #include <future>
 #endif
 
+#define DEBUG_TYPE "orc"
+
 namespace llvm {
 namespace orc {
 
@@ -334,6 +336,8 @@ void MaterializationResponsibility::replace(
   for (auto &KV : MU->getSymbols())
     SymbolFlags.erase(KV.first);
 
+  LLVM_DEBUG(dbgs() << "For " << JD.getName() << " replacing " << MU->getSymbols() << "\n");
+
   JD.replace(std::move(MU));
 }