From d9fb470758d0943e8c8de4b37827dc8cf7bb4ddf Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Mon, 15 Aug 2011 20:10:51 +0000
Subject: The "landingpad" instruction will never be "trivially" dead.

llvm-svn: 137642
---
 llvm/lib/Transforms/Utils/Local.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/Transforms/Utils/Local.cpp')

diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index 60dc15d6425..be0aa825001 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -226,6 +226,10 @@ bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions) {
 bool llvm::isInstructionTriviallyDead(Instruction *I) {
   if (!I->use_empty() || isa<TerminatorInst>(I)) return false;
 
+  // We don't want the landingpad instruction removed by anything this general.
+  if (isa<LandingPadInst>(I))
+    return false;
+
   // We don't want debug info removed by anything this general, unless
   // debug info is empty.
   if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I)) {
-- 
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