[Bug target/27537] XMM alignment fault when compiling for i386 with -Os

[vda dot linux at googlemail dot com]

------- Comment #15 from vda dot linux at googlemail dot com  2007-07-23 00:03 -------
Disadvantages of enforcing 16-bytes stack alignment, continued:

* Code to align the stack is generated when we call a function, even when this
function isn't going to use SSE. Which is ~90% of all functions out there.

* gcc-generated SSE code will still crash if called from code compiled by older
gcc on non-gcc compiler which chose to not align stack. Note that alternative
approach (to align stack _in the function which needs it_) will not crash if
called by code generated by old or new gcc. I like it.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27537