From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/cleanup-shortcircuit.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 tests/ui/cleanup-shortcircuit.rs (limited to 'tests/ui/cleanup-shortcircuit.rs') diff --git a/tests/ui/cleanup-shortcircuit.rs b/tests/ui/cleanup-shortcircuit.rs new file mode 100644 index 000000000..fe867ce1f --- /dev/null +++ b/tests/ui/cleanup-shortcircuit.rs @@ -0,0 +1,24 @@ +// run-pass +// Test that cleanups for the RHS of shortcircuiting operators work. + +// pretty-expanded FIXME #23616 + +#![allow(deref_nullptr)] + + +use std::env; + +pub fn main() { + let args: Vec = env::args().collect(); + + // Here, the rvalue `"signal".to_string()` requires cleanup. Older versions + // of the code had a problem that the cleanup scope for this + // expression was the end of the `if`, and as the `"signal".to_string()` + // expression was never evaluated, we wound up trying to clean + // uninitialized memory. + + if args.len() >= 2 && args[1] == "signal" { + // Raise a segfault. + unsafe { *std::ptr::null_mut::() = 0; } + } +} -- cgit v1.2.3