[PATCH] Remove dead zero store to calloc initialized memory

[Nick Lewycky]

LGTM

================
Comment at: lib/Transforms/Scalar/DeadStoreElimination.cpp:537
@@ +536,3 @@
+      if (isCallocLikeFn(InstDep.getInst(), TLI) && isRemovable(SI)) {
+        Value* V = SI->getValueOperand();
+        if (isa<Constant>(V) && cast<Constant>(V)->isNullValue()) {
----------------
"Value* V" -> "Value *V"

http://reviews.llvm.org/D3942