[llvm-commits] [poolalloc] r126532 - /poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp

[Arushi Aggarwal]

Author: aggarwa4
Date: Fri Feb 25 17:37:46 2011
New Revision: 126532

URL: http://llvm.org/viewvc/llvm-project?rev=126532&view=rev
Log:
call (bitcast F to ...) () should not cause F to
be considered address taken, as that value is never
really stored, and used elsewhere.

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=126532&r1=126531&r2=126532&view=diff
==============================================================================
--- poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp (original)
+++ poolalloc/trunk/lib/DSA/AddressTakenAnalysis.cpp Fri Feb 25 17:37:46 2011
@@ -48,8 +48,14 @@
         if(isAddressTaken(U))
           return true;
       } else {
-        // FIXME handle bitcasts to see if the resultant value
-        // is ever used in an address taken fashion
+        if (Constant *C = dyn_cast<Constant>(U)) {
+          if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
+            if (CE->getOpcode() == Instruction::BitCast) {
+                return isAddressTaken(CE);
+            }
+          }
+        }
+        
         return true;
       }