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      1 // RUN: %clangxx_asan -O0 %s -o %t && env ASAN_OPTIONS=strict_memcmp=0 %run %t
      2 // RUN: %clangxx_asan -O0 %s -o %t && env ASAN_OPTIONS=strict_memcmp=1 not %run %t 2>&1 | FileCheck %s
      3 // Default to strict_memcmp=1.
      4 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
      5 
      6 #include <stdio.h>
      7 #include <string.h>
      8 int main() {
      9   char kFoo[] = "foo";
     10   char kFubar[] = "fubar";
     11   int res = memcmp(kFoo, kFubar, strlen(kFubar));
     12   printf("res: %d\n", res);
     13   // CHECK: AddressSanitizer: stack-buffer-overflow
     14   return 0;
     15 }
     16