src/compiler-rt/test/asan/TestCases/Windows/stack_array_left_oob.cc

   1 // RUN: %clang_cl_asan -O0 %s -Fe%t
   2 // RUN: not %run %t 2>&1 | FileCheck %s
   3
   4 #include <stdio.h>
   5
   6 int main() {
   7   int subscript = -1;
   8   char buffer[42];
   9   buffer[subscript] = 42;
  10 // CHECK: AddressSanitizer: stack-buffer-underflow on address [[ADDR:0x[0-9a-f]+]]
  11 // CHECK: WRITE of size 1 at [[ADDR]] thread T0
  12 // CHECK-NEXT: {{#0 .* main .*stack_array_left_oob.cc}}:[[@LINE-3]]
  13 // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset [[OFFSET:.*]] in frame
  14 // CHECK-NEXT: {{#0 .* main .*stack_array_left_oob.cc}}
  15 // CHECK: 'buffer' <== Memory access at offset [[OFFSET]] underflows this variable
  16 }