[Bug rtl-optimization/101260] [10/11 Regression] regcprop: Determine subreg offset depending on endianness

[stefansf at linux dot ibm.com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101260

--- Comment #18 from Stefan Schulze Frielinghaus <stefansf at linux dot 
ibm.com> ---
Fixed for 12 and mainline.