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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 __attribute__((noinline))
      7 // FIXME: Static symbols don't show up in PDBs. We can remove this once we start
      8 // using DWARF.
      9 #ifndef _MSC_VER
     10 static
     11 #endif
     12 void NullDeref(int *ptr) {
     13   // CHECK: ERROR: AddressSanitizer: {{SEGV|access-violation}} on unknown address
     14   // CHECK:   {{0x0*000.. .*pc 0x.*}}
     15   ptr[10]++;  // BOOM
     16   // atos on Mac cannot extract the symbol name correctly. Also, on FreeBSD 9.2
     17   // the demangling function rejects local names with 'L' in front of them.
     18   // CHECK: {{    #0 0x.* in .*NullDeref.*null_deref.cc:}}[[@LINE-3]]
     19 }
     20 int main() {
     21   NullDeref((int*)0);
     22   // CHECK: {{    #1 0x.* in main.*null_deref.cc:}}[[@LINE-1]]
     23   // CHECK: AddressSanitizer can not provide additional info.
     24 }
     25