The landingpad instruction isn't loop-invariant.

llvm-svn: 137628
2011-08-15 18:22:49 +00:00 · 2011-08-15 18:22:49 +00:00 · 9af5b22b76
parent 88294cdbe0
commit 9af5b22b76
1 changed files with 3 additions and 0 deletions
--- 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();