Add FreeBSD support to the address sanitizer's null_deref.cc test case

[kcc]

I'd prefer to remove --check-prefix=CHECK-%os and use a single regexp for all platforms

[samsonov]

Yes, please get rid of CHECK-%os completely.

[kutuzov.viktor.84]

'CHECK-%os' replaced with plain 'CHECK'.

[samsonov]

LGTM

[kutuzov.viktor.84]

Closed by commit rL213130 (authored by vkutuzov).

compiler-rt/trunk/test/asan/TestCases/null_deref.cc

-// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
-// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
-// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
-// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
+// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 __attribute__((noinline))
 static void NullDeref(int *ptr) {
   // CHECK: ERROR: AddressSanitizer: SEGV on unknown address
   // CHECK:   {{0x0*000.. .*pc 0x.*}}
   ptr[10]++;  // BOOM
-  // atos on Mac cannot extract the symbol name correctly.
-  // CHECK-Linux: {{    #0 0x.* in NullDeref.*null_deref.cc:}}[[@LINE-2]]
-  // CHECK-Darwin: {{    #0 0x.* in .*NullDeref.*null_deref.cc:}}[[@LINE-3]]
+  // atos on Mac cannot extract the symbol name correctly. Also, on FreeBSD 9.2
+  // the demangling function rejects local names with 'L' in front of them.
+  // CHECK: {{    #0 0x.* in .*NullDeref.*null_deref.cc:}}[[@LINE-3]]
 }
 int main() {
   NullDeref((int*)0);
   // CHECK: {{    #1 0x.* in main.*null_deref.cc:}}[[@LINE-1]]
   // CHECK: AddressSanitizer can not provide additional info.
 }