[llvm-commits] [poolalloc] r124877 - /poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp

[Arushi Aggarwal]

Author: aggarwa4
Date: Fri Feb  4 11:51:48 2011
New Revision: 124877

URL: http://llvm.org/viewvc/llvm-project?rev=124877&view=rev
Log:
Do not care about users, that are never used.

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

Modified: poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp?rev=124877&r1=124876&r2=124877&view=diff
==============================================================================
--- poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp (original)
+++ poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp Fri Feb  4 11:51:48 2011
@@ -39,6 +39,8 @@
 static bool isAddressTaken(Value* V) {
   for (Value::use_iterator I = V->use_begin(), E = V->use_end(); I != E; ++I) {
     User *U = *I;
+    if(U->getNumUses() == 0)
+      continue;
     if (!isa<CallInst>(U) && !isa<InvokeInst>(U)) {
       if(isa<GlobalAlias>(U)) {
         if(isAddressTaken(U))
@@ -53,9 +55,8 @@
       // are never used
     } else {
       llvm::CallSite CS(cast<Instruction>(U));
-      if (!CS.isCallee(I)) {
+      if (!CS.isCallee(I))
         return true;
-      }
     }
   }
   return false;