From cbe003b243c5aa0ca7ec3872164a5e53950ba44f Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 19 Aug 2011 21:52:06 +0000
Subject: [PATCH] The landingpad instruction isn't dead simply because it's
 value isn't used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138102 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/ADCE.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Transforms/Scalar/ADCE.cpp b/lib/Transforms/Scalar/ADCE.cpp
index a5adb5e7cef..ba214d1a332 100644
--- a/lib/Transforms/Scalar/ADCE.cpp
+++ b/lib/Transforms/Scalar/ADCE.cpp
@@ -57,6 +57,7 @@ bool ADCE::runOnFunction(Function& F) {
   for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I)
     if (isa<TerminatorInst>(I.getInstructionIterator()) ||
         isa<DbgInfoIntrinsic>(I.getInstructionIterator()) ||
+        isa<LandingPadInst>(I.getInstructionIterator()) ||
         I->mayHaveSideEffects()) {
       alive.insert(I.getInstructionIterator());
       worklist.push_back(I.getInstructionIterator());
@@ -65,7 +66,6 @@ bool ADCE::runOnFunction(Function& F) {
   // Propagate liveness backwards to operands.
   while (!worklist.empty()) {
     Instruction* curr = worklist.pop_back_val();
-    
     for (Instruction::op_iterator OI = curr->op_begin(), OE = curr->op_end();
          OI != OE; ++OI)
       if (Instruction* Inst = dyn_cast<Instruction>(OI))
-- 
2.34.1