[LICM] Plug a leak freeing the ASTs before clearing the map.

llvm-svn: 290433

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/Transforms/Scalar/LICM.cpp b/llvm/lib/Transforms/Scalar/LICM.cpp
index bc2a9d1391b..c981a8ff96b 100644
--- a/llvm/lib/Transforms/Scalar/LICM.cpp
+++ b/llvm/lib/Transforms/Scalar/LICM.cpp
@@ -128,6 +128,8 @@ struct LegacyLICMPass : public LoopPass {
       // If we have run LICM on a previous loop but now we are skipping
       // (because we've hit the opt-bisect limit), we need to clear the
       // loop alias information.
+      for (auto &LTAS : LICM.getLoopToAliasSetMap())
+        delete LTAS.second;
       LICM.getLoopToAliasSetMap().clear();
       return false;
     }