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      1 // Check that we can store lots of stack frames if asked to.
      2 
      3 // RUN: %clangxx_asan -O0 %s -o %t 2>&1
      4 // RUN: env ASAN_OPTIONS=malloc_context_size=120:redzone=512 not %run %t 2>&1 | FileCheck %s
      5 // XFAIL: arm-linux-gnueabi
      6 // XFAIL: armv7l-unknown-linux-gnueabihf
      7 #include <stdlib.h>
      8 #include <stdio.h>
      9 
     10 template <int depth>
     11 struct DeepFree {
     12   static void free(char *x) {
     13     DeepFree<depth - 1>::free(x);
     14   }
     15 };
     16 
     17 template<>
     18 struct DeepFree<0> {
     19   static void free(char *x) {
     20     ::free(x);
     21   }
     22 };
     23 
     24 int main() {
     25   char *x = (char*)malloc(10);
     26   // deep_free(x);
     27   DeepFree<200>::free(x);
     28   return x[5];
     29   // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
     30   // The libcxxrt demangling procedure on FreeBSD 9.2 incorrectly appends
     31   // extra 'E' characters to the end of template arguments; see:
     32   // https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192115
     33   // CHECK: {{DeepFree<36>|DeepFree<36E>}}
     34   // CHECK: {{DeepFree<98>|DeepFree<98E>}}
     35   // CHECK: {{DeepFree<115>|DeepFree<115E>}}
     36 }
     37