[Bug tree-optimization/49413] over-optimization that causes valid code to segfault

[gattis at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49413

--- Comment #7 from Matt Gattis <gattis at gmail dot com> 2011-06-15 01:19:57 UTC ---
(In reply to comment #6)
> The problem is:
>   double *v = (qp == &(t->q)) ? t->xyz->va : t->xyz->vb;
> 
> the pointer v is a pointer to a 8 byte aligned data but you supply it with
> something which is only 4 byte aligned.

Silly me, I thought the whole point of a compiler was to make it so you didn't
have to code to machine-specific byte alignments and instructions.