This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: x86: -Os -msse2 needs -maccumulate-outgoing-args

> This testcase

Hi,
this is not -maccumulate-outgoing-args that breaks, it is
-mpreffered-stack-boundary=2 implied by -Os.  We still don't have the
dynamic stack alignment code merged in, unfortunately.
It would be probably sane to give some warning or hard error when SSE
register is put onto stack, but I don't see easy way to do this, as we
should not output such a warning for long doubles that have same
alignment properties.
Ideas?

Honza
Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]