[PM] Add names to passes under the new pass manager, and a debug output

mode that can be used to debug the execution of everything.

No support for analyses here, that will come later. This already helps
show parts of the opt commandline integration that isn't working. Tests
of that will start using it as the bugs are fixed.

llvm-svn: 199004

1 files changed, 1 insertions, 0 deletions

diff --git a/llvm/tools/opt/Passes.cpp b/llvm/tools/opt/Passes.cpp
index 49751269df9..d58acaf1f6d 100644
--- a/llvm/tools/opt/Passes.cpp
+++ b/llvm/tools/opt/Passes.cpp
@@ -24,6 +24,7 @@ namespace {
   /// \brief No-op module pass which does nothing.
 struct NoOpModulePass {
   PreservedAnalyses run(Module *M) { return PreservedAnalyses::all(); }
+  static StringRef name() { return "NoOpModulePass"; }
 };
 
 } // End anonymous namespace.