[Bug middle-end/70025] [6 Regression] Miscompilation of gc-7.4.2 on s390x starting with r227382

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70025

--- Comment #6 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
Shouldn't this rather check whether the *value* of the register in in_rtx
appears in out_rtx?