src/test/ui/sanitize/new-llvm-pass-manager-thin-lto.rs

   1 // Regression test for sanitizer function instrumentation passes not
   2 // being run when compiling with new LLVM pass manager and ThinLTO.
   3 // Note: The issue occurred only on non-zero opt-level.
   4 //
   5 // min-llvm-version 9.0
   6 // needs-sanitizer-support
   7 // needs-sanitizer-address
   8 //
   9 // no-prefer-dynamic
  10 // revisions: opt0 opt1
  11 // compile-flags: -Znew-llvm-pass-manager=yes -Zsanitizer=address -Clto=thin
  12 //[opt0]compile-flags: -Copt-level=0
  13 //[opt1]compile-flags: -Copt-level=1
  14 // run-fail
  15 // error-pattern: ERROR: AddressSanitizer: stack-use-after-scope
  16
  17 static mut P: *mut usize = std::ptr::null_mut();
  18
  19 fn main() {
  20     unsafe {
  21         {
  22             let mut x = 0;
  23             P = &mut x;
  24         }
  25         std::ptr::write_volatile(P, 123);
  26     }
  27 }