1 // RUN: %clang -x c -fsanitize=pointer-overflow %s -o %t
2 // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE,CHECK-NOTYPE-C
3 // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE,CHECK-TYPE-C
4 
5 // RUN: %clangxx -fsanitize=pointer-overflow %s -o %t
6 // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE,CHECK-NOTYPE-CPP
7 // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE,CHECK-TYPE-CPP
8 
9 #include <stdlib.h>
10 
11 int main(int argc, char *argv[]) {
12   char *base, *result;
13 
14   base = (char *)0;
15   result = base + 0;
16   // CHECK-NOTYPE-C: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
17   // CHECK-TYPE-C: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-offset {{.*}}summary.cpp:[[@LINE-2]]:17
18   // CHECK-NOTYPE-CPP-NOT: SUMMARY:
19   // CHECK-TYPE-CPP-NOT: SUMMARY:
20 
21   base = (char *)0;
22   result = base + 1;
23   // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
24   // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17
25 
26   base = (char *)1;
27   result = base - 1;
28   // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
29   // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-after-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17
30 
31   return 0;
32 }
33