Make basicaa a bit more aggressive

llvm-svn: 15252

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index 19397f67da3..5c8dbe16c8b 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -196,6 +196,10 @@ static bool AddressMightEscape(const Value *V) {
         return true;
       if (AddressMightEscape(I)) return true;
       break;
+    case Instruction::Ret:
+      // If returned, the address will escape to calling functions, but no
+      // callees could modify it.
+      break;
     default:
       return true;
     }