Ensure 64-bit correctness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34923 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Win32/Program.inc b/lib/System/Win32/Program.inc
index d5cdf38..0d870dc 100644
--- a/lib/System/Win32/Program.inc
+++ b/lib/System/Win32/Program.inc
@@ -217,7 +217,7 @@
       JOBOBJECT_EXTENDED_LIMIT_INFORMATION jeli;
       memset(&jeli, 0, sizeof(jeli));
       jeli.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_PROCESS_MEMORY;
-      jeli.ProcessMemoryLimit = memoryLimit * 1048576;
+      jeli.ProcessMemoryLimit = uintptr_t(memoryLimit) * 1048576;
       if (SetInformationJobObject(hJob, JobObjectExtendedLimitInformation,
                                   &jeli, sizeof(jeli))) {
         if (AssignProcessToJobObject(hJob, pi.hProcess))