[Bug rtl-optimization/64037] Miscompilation with LTO and enum class : char parameter

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64037

--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> ---
Here is the related discussion:

https://groups.google.com/forum/#!topic/ia32-abi/9H4BBrIdkmk