From 5de114b650d780dddffadff72af2a0374a1258cf Mon Sep 17 00:00:00 2001
From: Arthur Eubanks <aeubanks@google.com>
Date: Mon, 19 Jul 2021 13:35:57 -0700
Subject: [PATCH] [NewPM][opt] Add -debug-pass-manager=quiet to not print
 analysis info

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D106307
---
 llvm/test/Other/debug-pass-manager.ll | 19 +++++++++++++++++++
 llvm/tools/opt/NewPMDriver.cpp        |  5 ++++-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 llvm/test/Other/debug-pass-manager.ll

diff --git a/llvm/test/Other/debug-pass-manager.ll b/llvm/test/Other/debug-pass-manager.ll
new file mode 100644
index 0000000000000..e0851f822510e
--- /dev/null
+++ b/llvm/test/Other/debug-pass-manager.ll
@@ -0,0 +1,19 @@
+; RUN: opt -passes=inline < %s -debug-pass-manager 2>&1 | FileCheck %s --check-prefix=NORMAL
+; RUN: opt -passes=inline < %s -debug-pass-manager=quiet 2>&1 | FileCheck %s --check-prefix=QUIET
+; RUN: opt -passes=inline < %s -debug-pass-manager=verbose 2>&1 | FileCheck %s --check-prefix=VERBOSE
+
+define void @a() {
+  ret void
+}
+
+; QUIET-NOT: Running pass: ModuleToPostOrderCGSCCPassAdaptor
+; QUIET: Running pass: InlinerPass
+; QUIET-NOT: Running analysis
+
+; NORMAL-NOT: Running pass: ModuleToPostOrderCGSCCPassAdaptor
+; NORMAL: Running pass: InlinerPass
+; NORMAL: Running analysis
+
+; VERBOSE: Running pass: ModuleToPostOrderCGSCCPassAdaptor
+; VERBOSE: Running pass: InlinerPass
+; VERBOSE: Running analysis
diff --git a/llvm/tools/opt/NewPMDriver.cpp b/llvm/tools/opt/NewPMDriver.cpp
index 9ca7013d22306..8b1fbd09e40b3 100644
--- a/llvm/tools/opt/NewPMDriver.cpp
+++ b/llvm/tools/opt/NewPMDriver.cpp
@@ -52,7 +52,7 @@ cl::opt<std::string>
                    cl::value_desc("filename"));
 } // namespace llvm
 
-enum class DebugLogging { None, Normal, Verbose };
+enum class DebugLogging { None, Normal, Verbose, Quiet };
 
 static cl::opt<DebugLogging> DebugPM(
     "debug-pass-manager", cl::Hidden, cl::ValueOptional,
@@ -60,6 +60,8 @@ static cl::opt<DebugLogging> DebugPM(
     cl::init(DebugLogging::None),
     cl::values(
         clEnumValN(DebugLogging::Normal, "", ""),
+        clEnumValN(DebugLogging::Quiet, "quiet",
+                   "Skip printing info about analyses"),
         clEnumValN(
             DebugLogging::Verbose, "verbose",
             "Print extra information about adaptors and pass managers")));
@@ -293,6 +295,7 @@ bool llvm::runPassPipeline(StringRef Arg0, Module &M, TargetMachine *TM,
   PassInstrumentationCallbacks PIC;
   PrintPassOptions PrintPassOpts;
   PrintPassOpts.Verbose = DebugPM == DebugLogging::Verbose;
+  PrintPassOpts.SkipAnalyses = DebugPM == DebugLogging::Quiet;
   StandardInstrumentations SI(DebugPM != DebugLogging::None, VerifyEachPass,
                               PrintPassOpts);
   SI.registerCallbacks(PIC, &FAM);