NFC, Avoid a warning on pointer casting in PassPlugin.cpp

llvm-svn: 331179
diff --git a/llvm/lib/Passes/PassPlugin.cpp b/llvm/lib/Passes/PassPlugin.cpp
index 8f689ee..bf38fdb 100644
--- a/llvm/lib/Passes/PassPlugin.cpp
+++ b/llvm/lib/Passes/PassPlugin.cpp
@@ -10,6 +10,8 @@
 #include "llvm/Passes/PassPlugin.h"
 #include "llvm/Support/raw_ostream.h"
 
+#include <cstdint>
+
 using namespace llvm;
 
 Expected<PassPlugin> PassPlugin::Load(const std::string &Filename) {
@@ -22,8 +24,8 @@
                                    inconvertibleErrorCode());
 
   PassPlugin P{Filename, Library};
-  auto *getDetailsFn =
-      Library.SearchForAddressOfSymbol("llvmGetPassPluginInfo");
+  intptr_t getDetailsFn =
+      (intptr_t)Library.SearchForAddressOfSymbol("llvmGetPassPluginInfo");
 
   if (!getDetailsFn)
     // If the symbol isn't found, this is probably a legacy plugin, which is an