[Bug target/56564] movdqa on possibly-8-byte-aligned struct with -O3

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56564

--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #16)
> On x86_64-apple-darwin10.8 at revision 199935, I get the following failures
> for the tests added at revision 199898:
> 
> FAIL: gcc.target/i386/pr56564-1.c scan-tree-dump-times optimized "&s" 1
> FAIL: gcc.target/i386/pr56564-1.c scan-tree-dump-times optimized "return 0" 1
> FAIL: gcc.target/i386/pr56564-3.c scan-tree-dump-times optimized "&s" 1
> FAIL: gcc.target/i386/pr56564-3.c scan-tree-dump-times optimized "&t" 1

Yeah, MachO is broken by design, guess the tests need to be restricted to
non-darwin non-PE.