Subzero. Native 64-bit int arithmetic on x86-64.

runtime/szrt_profiler.c

+#include <inttypes.h>
 #include <stdint.h>
 #include <stdio.h>
 
 struct BlockProfileInfo {
   uint64_t Counter;
   const char *const BlockName;
 } __attribute__((aligned(8)));
 
 extern const struct BlockProfileInfo *__Sz_block_profile_info;
 
@@ skipping 35 matching lines @@
     "          "
     "__________________________________________________________________________"
     "____________________________\n"
     "\n"
     "\n";
 
 void __Sz_profile_summary() {
   printf("%s", SubzeroLogo);
   for (const struct BlockProfileInfo **curr = &__Sz_block_profile_info;
        *curr != NULL; ++curr) {
-    printf("%lld\t%s\n", (*curr)->Counter, (*curr)->BlockName);
+    printf("%" PRIu64 "\t%s\n", (*curr)->Counter, (*curr)->BlockName);
   }
   fflush(stdout);
 }