[Bug target/54589] struct offset add should be folded into address calculation

[sgunderson at bigfoot dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54589

--- Comment #3 from sgunderson at bigfoot dot com ---
Still there in GCC 7.2.1 (exact same assembler output), and in 8.0 snapshot
20171017.