From 9af5b22b7664a55044a4346be94ecac102f0ee28 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Mon, 15 Aug 2011 18:22:49 +0000
Subject: The landingpad instruction isn't loop-invariant.

llvm-svn: 137628
---
 llvm/lib/Analysis/LoopInfo.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/Analysis/LoopInfo.cpp')

diff --git a/llvm/lib/Analysis/LoopInfo.cpp b/llvm/lib/Analysis/LoopInfo.cpp
index 9a7c50d7fa4..36fd598d13c 100644
--- a/llvm/lib/Analysis/LoopInfo.cpp
+++ b/llvm/lib/Analysis/LoopInfo.cpp
@@ -99,6 +99,9 @@ bool Loop::makeLoopInvariant(Instruction *I, bool &Changed,
     return false;
   if (I->mayReadFromMemory())
     return false;
+  // The landingpad instruction is immobile.
+  if (isa<LandingPadInst>(I))
+    return false;
   // Determine the insertion point, unless one was given.
   if (!InsertPt) {
     BasicBlock *Preheader = getLoopPreheader();
-- 
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