commit bd1d382cc47dfc43ee758714bc22ab5a750bad15
author Chris Lattner <sabre@nondot.org> Sat Oct 16 18:19:26 2004 +0000
committer Chris Lattner <sabre@nondot.org> Sat Oct 16 18:19:26 2004 +0000
tree 580ba057e515d5a2c1176d6e1fc3c6fcab8d5ad5
parent a79e7cca0dff44092b0b1a17a26a7af4bebc9d5d

Add support for undef


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17055 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/DataStructure/Local.cpp

diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp
index b497c38..473fb63 100644
--- a/lib/Analysis/DataStructure/Local.cpp
+++ b/lib/Analysis/DataStructure/Local.cpp
@@ -246,6 +246,9 @@
     } else if (ConstantIntegral *CI = dyn_cast<ConstantIntegral>(C)) {
       // Random constants are unknown mem
       return NH = createNode()->setUnknownNodeMarker();
+    } else if (isa<UndefValue>(C)) {
+      ScalarMap.erase(V);
+      return 0;
     } else {
       assert(0 && "Unknown constant type!");
     }