https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87454
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-11-07 Ever confirmed|0 |1 --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- Note that truncation is only part of recently added Implicit Conversion Sanitizer: http://releases.llvm.org/7.0.0/tools/clang/docs/ReleaseNotes.html#undefined-behavior-sanitizer-ubsan One can find a blog post about it here (mentioned in LLVM weekly): John Regehr has a short blog post on [recently added implicit integer cast sanitizers](https://blog.regehr.org/archives/1633).