Use isa instead of dyn_cast when the result is only converted to bool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78685 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/IPA/Andersens.cpp b/lib/Analysis/IPA/Andersens.cpp
index ef29f70..39f4989 100644
--- a/lib/Analysis/IPA/Andersens.cpp
+++ b/lib/Analysis/IPA/Andersens.cpp
@@ -997,7 +997,7 @@
   if (!isa<PointerType>(V->getType())) return true;
 
   for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E; ++UI)
-    if (dyn_cast<LoadInst>(*UI)) {
+    if (isa<LoadInst>(*UI)) {
       return false;
     } else if (StoreInst *SI = dyn_cast<StoreInst>(*UI)) {
       if (V == SI->getOperand(1)) {
@@ -1028,7 +1028,7 @@
     } else if (ICmpInst *ICI = dyn_cast<ICmpInst>(*UI)) {
       if (!isa<ConstantPointerNull>(ICI->getOperand(1)))
         return true;  // Allow comparison against null.
-    } else if (dyn_cast<FreeInst>(*UI)) {
+    } else if (isa<FreeInst>(*UI)) {
       return false;
     } else {
       return true;