1 // RUN: %clangxx -fsanitize=alignment %s -o %t
2 // RUN: %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NOTYPE
3 // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TYPE
4 
5 #include <stdlib.h>
6 
7 int main(int argc, char* argv[]) {
8   char *ptr = (char *)malloc(2);
9 
10   __builtin_assume_aligned(ptr + 1, 0x8000);
11   // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:32
12   // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: alignment-assumption {{.*}}summary.cpp:[[@LINE-2]]:32
13   free(ptr);
14 
15   return 0;
16 }
17