[Bug rtl-optimization/40838] gcc shouldn't assume that the stack is aligned

[hjl dot tools at gmail dot com]

------- Comment #18 from hjl dot tools at gmail dot com  2009-07-31 15:51 -------
(In reply to comment #17)
> "Even if we align the incoming stack properly, we still have to align the
> outgoing stack to 16byte"
> 
> I'm not opposing it. What I mean is: every function will have stack frame size
> that is multiple of mpreferred-stack-boundary (16 bytes) --- it is what GCC is
> doing now. And additionally, there will be stack realign for functions that do
> 16-byte SSE math.
> 

What you are looking for is an option to turn on force_align_arg_pointer
attribute for all functions which use 16byte SSE memory.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40838