https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65408
--- Comment #6 from Alan Modra <amodra at gmail dot com> --- Code quality for both powerpc64le and x86_64 looks passable for the testcase here and other structs with at least one int field (ie. when the struct size is a multiple of 4, and alignment is 4). You get DImode loads followed by an SImode load if the struct isn't a multiple of 8 in size. Code quality does suffer a little for big-endian since any SImode load at the end of the struct needs to be shifted, whereas a DImode loading past the end of the struct needs no shifting. For cases where the struct size isn't a multiple of 4, code quality certainly does suffer, worst case being a struct of size 7 that would now be loaded by 7 byte loads.. Should we care more about that than a segfault in real-world user code? Hmm. Answering my own question, I guess that since pr36043 is nearly seven years old, we don't care too much about segfaults!
