compiler-rt/test/asan/TestCases/pass-struct-byval.cpp

   1 // RUN: %clangxx_asan -O0 %s -o %t
   2 // RUN: not %run %t 2>&1 | FileCheck %s
   3
   4 struct A {
   5   int a[8];
   6 };
   7
   8 int bar(A *a) {
   9   int *volatile ptr = &a->a[0];
  10   return *(ptr - 1);
  11 }
  12
  13 void foo(A a) {
  14   bar(&a);
  15 }
  16
  17 int main() {
  18   foo(A());
  19 }
  20
  21 // CHECK: ERROR: AddressSanitizer: stack-buffer-underflow
  22 // CHECK: READ of size 4 at
  23 // CHECK: is located in stack of thread