http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55211
--- Comment #24 from davem at gcc dot gnu.org 2012-11-06 18:07:46 UTC --- On several occasions, in both public and private emails, I have in fact expressed my displeasure with how the configure system and the sparc backend treat things based upon the target triplet. I've always, and consistently, expressed my position that when configure sees plain "sparc" gcc should generate 32-bit code by default. And when it sees "sparc64" it should generate 64-bit code by default. Finally, I've always stated that there should be an easy way to modify this default (after installation) on a system wide basis (f.e. via a file under sysroot). Back to the bug. I do builds with --with-cpu=niagara4 so that more of the VIS patterns and new code gets exercised. Among other things, this changes the heuristics for various things like block moves. This unaligned load is part of a block move resulting from a structure copy. In any event, I can reproduce it by using --with-cpu=v8, so I can debug it properly. I hope to have this fixed by the end of today.
