https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109495
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 54857 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54857&action=edit patch I have tested the attached successfully. Can you think of a case where we'd have a BLKmode target but a same size component ref source that has not? We could also check the components mode (but emulating what get_inner_reference does is tricky - but it might be useful to split the head of it out). In any case if the concern is just padding it's odd that we have to massage the _source_. And if we have to, for larger sizes we could at least block-copy the large head and just deal with the tail covering the padding with a temporary.
