From: Bill Wendling <isanbard@gmail.com>
Date: Mon, 15 Aug 2011 18:22:49 +0000 (+0000)
Subject: The landingpad instruction isn't loop-invariant.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=da005e7d20ddd623ac6174955473d4df27b1b7d4;p=oota-llvm.git

The landingpad instruction isn't loop-invariant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137628 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/LoopInfo.cpp b/lib/Analysis/LoopInfo.cpp
index 9a7c50d7fa4..36fd598d13c 100644
--- a/lib/Analysis/LoopInfo.cpp
+++ b/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();