------- Comment #14 from hjl dot tools at gmail dot com 2008-07-31 01:04
-------
(In reply to comment #0)
> Running the program below compiled with "-mpreferred-stack-boundary=2"
> gets a "segmentation fault" because the variable "tmp"
> is not properly aligned on a 16-byte boundary (required for
> movaps), violating the aligned(16) request in the attribute.
>
> void f()
> {
> unsigned long tmp[4] __attribute__((aligned(16)));
> asm("movaps %%xmm0, (%0)" : : "r" (tmp) : "memory");
> }
>
> int main()
> {
> f();
> }
This should work with gcc 4.4 revision 138335.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16660
