From fd1ff5ee0388af9eb373d903a1644e6cd2c96d9d Mon Sep 17 00:00:00 2001
From: Arthur Eubanks <aeubanks@google.com>
Date: Mon, 26 Apr 2021 12:53:09 -0700
Subject: [PATCH] [Inliner] Make ModuleInlinerWrapperPass return
 PreservedAnalyses::all()

The ModulePassManager should already have taken care of all analysis
invalidation. Without this change, upcoming changes will cause more
invalidation than necessary.

Reviewed By: mtrofin

Differential Revision: https://reviews.llvm.org/D101320
---
 llvm/lib/Transforms/IPO/Inliner.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Transforms/IPO/Inliner.cpp b/llvm/lib/Transforms/IPO/Inliner.cpp
index caba83b..1c9800f 100644
--- a/llvm/lib/Transforms/IPO/Inliner.cpp
+++ b/llvm/lib/Transforms/IPO/Inliner.cpp
@@ -1036,8 +1036,10 @@ PreservedAnalyses ModuleInlinerWrapperPass::run(Module &M,
   else
     MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(
         createDevirtSCCRepeatedPass(std::move(PM), MaxDevirtIterations)));
-  auto Ret = MPM.run(M, MAM);
+  MPM.run(M, MAM);
 
   IAA.clear();
-  return Ret;
+
+  // The ModulePassManager has already taken care of invalidating analyses.
+  return PreservedAnalyses::all();
 }
-- 
2.7.4