From ce02c79dc67601af7dcf9adcaaaff8cd98d85381 Mon Sep 17 00:00:00 2001
From: Shengchen Kan <shengchen.kan@intel.com>
Date: Wed, 16 Feb 2022 12:43:08 +0800
Subject: [Debugify] Mark mir-check-debugify change nothing of input

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D119914
---
 llvm/lib/CodeGen/MachineCheckDebugify.cpp | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'llvm/lib/CodeGen/MachineCheckDebugify.cpp')

diff --git a/llvm/lib/CodeGen/MachineCheckDebugify.cpp b/llvm/lib/CodeGen/MachineCheckDebugify.cpp
index bd7f0f862947..49b2c822eaeb 100644
--- a/llvm/lib/CodeGen/MachineCheckDebugify.cpp
+++ b/llvm/lib/CodeGen/MachineCheckDebugify.cpp
@@ -27,9 +27,6 @@ namespace {
 
 struct CheckDebugMachineModule : public ModulePass {
   bool runOnModule(Module &M) override {
-    MachineModuleInfo &MMI =
-        getAnalysis<MachineModuleInfoWrapperPass>().getMMI();
-
     NamedMDNode *NMD = M.getNamedMetadata("llvm.mir.debugify");
     if (!NMD) {
       errs() << "WARNING: Please run mir-debugify to generate "
@@ -37,6 +34,9 @@ struct CheckDebugMachineModule : public ModulePass {
       return false;
     }
 
+    MachineModuleInfo &MMI =
+        getAnalysis<MachineModuleInfoWrapperPass>().getMMI();
+
     auto getDebugifyOperand = [&](unsigned Idx) -> unsigned {
       return mdconst::extract<ConstantInt>(NMD->getOperand(Idx)->getOperand(0))
           ->getZExtValue();
@@ -106,8 +106,7 @@ struct CheckDebugMachineModule : public ModulePass {
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<MachineModuleInfoWrapperPass>();
-    AU.addPreserved<MachineModuleInfoWrapperPass>();
-    AU.setPreservesCFG();
+    AU.setPreservesAll();
   }
 
   static char ID; // Pass identification.
-- 
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