// Test that there was an illegal READ memory access.
// Fails with debug checks: https://bugs.llvm.org/show_bug.cgi?id=46860
// XFAIL: !compiler-rt-optimized && tsan
// RUN: %clangxx -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s

// REQUIRES: stable-runtime
// XFAIL: powerpc64, s390x

volatile int *null = 0;
volatile int a;

int main(int argc, char **argv) {
  a = *null;
  return 0;
}

// CHECK: The signal is caused by a READ memory access.