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      1 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
      2 // RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
      3 // RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
      4 // RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
      5 
      6 #include <string.h>
      7 
      8 char kString[] = "foo";
      9 
     10 int main(int argc, char **argv) {
     11   char *copy = strdup(kString);
     12   int x = copy[4 + argc];  // BOOM
     13   // CHECK: AddressSanitizer: heap-buffer-overflow
     14   // CHECK: #0 {{.*}}main {{.*}}strdup_oob_test.cc:[[@LINE-2]]
     15   // CHECK-LABEL: allocated by thread T{{.*}} here:
     16   // CHECK: #{{[01]}} {{.*}}strdup
     17   // CHECK-LABEL: SUMMARY
     18   // CHECK: strdup_oob_test.cc:[[@LINE-6]]
     19   return x;
     20 }
     21