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// RUN: %clangxx_asan -O0 %s -o %t
// RUN: ASAN_OPTIONS=malloc_context_size=0:fast_unwind_on_malloc=0 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
// RUN: ASAN_OPTIONS=malloc_context_size=0:fast_unwind_on_malloc=1 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
// RUN: ASAN_OPTIONS=malloc_context_size=1:fast_unwind_on_malloc=0 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
// RUN: ASAN_OPTIONS=malloc_context_size=1:fast_unwind_on_malloc=1 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
// RUN: ASAN_OPTIONS=malloc_context_size=2 not %t 2>&1 | FileCheck %s --check-prefix=TWO
int main() {
char *x = new char[20];
delete[] x;
return x[0];
// We need to keep duplicate lines with different 'CHECK-%os' prefixes,
// otherwise FileCheck barks on missing 'CHECK-%os' before 'CHECK-%os-NEXT'.
// CHECK-Linux: freed by thread T{{.*}} here:
// CHECK-Linux-NEXT: #0 0x{{.*}} in operator delete[]
// CHECK-Darwin: freed by thread T{{.*}} here:
// CHECK-Darwin-NEXT: #0 0x{{.*}} in wrap__ZdaPv
// CHECK-NOT: #1 0x{{.*}}
// CHECK-Linux: previously allocated by thread T{{.*}} here:
// CHECK-Linux-NEXT: #0 0x{{.*}} in operator new[]
// CHECK-Darwin: previously allocated by thread T{{.*}} here:
// CHECK-Darwin-NEXT: #0 0x{{.*}} in wrap__Znam
// CHECK-NOT: #1 0x{{.*}}
// CHECK: SUMMARY: AddressSanitizer: heap-use-after-free
// TWO: previously allocated by thread T{{.*}} here:
// TWO-NEXT: #0 0x{{.*}}
// TWO-NEXT: #1 0x{{.*}} in main {{.*}}malloc_context_size.cc
// TWO: SUMMARY: AddressSanitizer: heap-use-after-free
}
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