compiler-rt/test/hwasan/TestCases/stack-uar-dynamic.c

   1 // RUN: %clang_hwasan -g %s -o %t && not %run %t 2>&1 | FileCheck %s
   2
   3 // Dynamic allocation of stack objects does not affect FP, so the backend should
   4 // still be using FP-relative debug info locations that we can use to find stack
   5 // objects.
   6
   7 __attribute((noinline))
   8 char *buggy(int b) {
   9   char c[64];
  10   char *volatile p = c;
  11   if (b) {
  12     p = __builtin_alloca(64);
  13     p = c;
  14   }
  15   return p;
  16 }
  17
  18 int main() {
  19   char *p = buggy(1);
  20   // CHECK: Potentially referenced stack objects:
  21   // CHECK-NEXT: c in buggy
  22   p[0] = 0;
  23 }