[Bug tree-optimization/107617] SCC-VN with len_store and big endian

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107617

--- Comment #7 from rdapp at linux dot ibm.com ---
The patch fixes the problem for me.  I did a full bootstrap with enabled
len_load support.  No new regressions with -march=arch14.  Thanks again!