From 6b3e2120b9edc34a9bc7df1753f3e44b9ff1c2c5 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Tue, 21 Jun 2016 23:01:17 +0000
Subject: Make DeadMachineInstructionElim preserve CFG

llvm-svn: 273330
---
 llvm/lib/CodeGen/DeadMachineInstructionElim.cpp | 5 +++++
 1 file changed, 5 insertions(+)

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

diff --git a/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp b/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp
index ae58b5bb0e7..0b8dc7a86ad 100644
--- a/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp
+++ b/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp
@@ -42,6 +42,11 @@ namespace {
      initializeDeadMachineInstructionElimPass(*PassRegistry::getPassRegistry());
     }
 
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
+      AU.setPreservesCFG();
+      MachineFunctionPass::getAnalysisUsage(AU);
+    }
+
   private:
     bool isDead(const MachineInstr *MI) const;
   };
-- 
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