[llvm-commits] [poolalloc] r121707 - /poolalloc/trunk/lib/DSA/DSGraph.cpp

[Arushi Aggarwal]

Author: aggarwa4
Date: Mon Dec 13 13:18:02 2010
New Revision: 121707

URL: http://llvm.org/viewvc/llvm-project?rev=121707&view=rev
Log:
As per  getValueDest that creates DSNodes,
there is no DSNode for Constant Null Values. Perform
the same check here too.


Modified:
    poolalloc/trunk/lib/DSA/DSGraph.cpp

Modified: poolalloc/trunk/lib/DSA/DSGraph.cpp
URL: http://llvm.org/viewvc/llvm-project/poolalloc/trunk/lib/DSA/DSGraph.cpp?rev=121707&r1=121706&r2=121707&view=diff
==============================================================================
--- poolalloc/trunk/lib/DSA/DSGraph.cpp (original)
+++ poolalloc/trunk/lib/DSA/DSGraph.cpp Mon Dec 13 13:18:02 2010
@@ -69,6 +69,9 @@
   // Undef values, even ones of pointer type, don't get nodes.
   if (isa<UndefValue>(V)) return false;
 
+  if (isa<Constant>(V) && cast<Constant>(V)->isNullValue())
+    return false;
+
   // Use the Aliasee of GlobalAliases
   // FIXME: This check might not be required, it's here because
   // something similar is done in the Local pass.